Postcode,In Use?,Latitude,Longitude,Easting,Northing,Grid Ref,Introduced,Terminated,Parish,Altitude,Country,Last Updated,Quality,LSOA Code,LSOA Name,LSOA Code 2021,LSOA Name 2021
SG4 0AS,Yes,51.956902,-0.257291,519849,230147,TL198301,1980-01-01,,"North Hertfordshire, unparished area",57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0AT,Yes,51.957515,-0.258621,519756,230213,TL197302,1980-01-01,,"North Hertfordshire, unparished area",57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0AU,Yes,51.958109,-0.259238,519712,230278,TL197302,1980-01-01,,"North Hertfordshire, unparished area",58,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0AX,Yes,51.958205,-0.257255,519848,230292,TL198302,1980-01-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0AY,No,51.958361,-0.262285,519502,230301,TL195303,1991-01-01,1992-12-01,"North Hertfordshire, unparished area",57,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0BA,Yes,51.960624,-0.263347,519423,230551,TL194305,1980-01-01,,"North Hertfordshire, unparished area",60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BD,Yes,51.961729,-0.262052,519509,230676,TL195306,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BE,Yes,51.962515,-0.260450,519617,230766,TL196307,1980-01-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BF,Yes,51.959809,-0.261108,519579,230464,TL195304,2011-10-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BH,Yes,51.960724,-0.261582,519544,230565,TL195305,1980-01-01,,"North Hertfordshire, unparished area",60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BJ,Yes,51.956703,-0.265143,519310,230112,TL193301,2013-04-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0BL,Yes,51.960682,-0.259356,519697,230564,TL196305,1980-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BN,Yes,51.961720,-0.260175,519638,230678,TL196306,1980-01-01,,"North Hertfordshire, unparished area",68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BP,Yes,51.958948,-0.258216,519780,230373,TL197303,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BQ,Yes,51.956504,-0.255953,519942,230105,TL199301,2017-04-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BS,Yes,51.957571,-0.256334,519913,230223,TL199302,1980-01-01,,"North Hertfordshire, unparished area",58,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0BT,Yes,51.956842,-0.258123,519792,230139,TL197301,1980-01-01,,"North Hertfordshire, unparished area",57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0BU,Yes,51.957050,-0.258755,519748,230161,TL197301,1980-01-01,,"North Hertfordshire, unparished area",57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0BW,Yes,51.956493,-0.264293,519369,230090,TL193300,2017-11-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0BX,Yes,51.958567,-0.260457,519627,230327,TL196303,1980-01-01,,"North Hertfordshire, unparished area",57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0BZ,Yes,51.959465,-0.262198,519505,230424,TL195304,1984-02-01,,"North Hertfordshire, unparished area",56,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0DH,Yes,51.953603,-0.262265,519516,229772,TL195297,1980-01-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0DJ,No,51.952968,-0.262494,519502,229701,TL195297,1980-01-01,1981-12-01,"North Hertfordshire, unparished area",71,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0DL,Yes,51.948898,-0.254241,520080,229262,TL200292,1980-01-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0DN,Yes,51.949887,-0.254217,520079,229372,TL200293,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0DP,Yes,51.948450,-0.253109,520159,229214,TL201292,1980-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0DR,Yes,51.947809,-0.252348,520213,229144,TL202291,1980-01-01,,"North Hertfordshire, unparished area",68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0DS,Yes,51.948981,-0.252506,520199,229274,TL201292,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0DU,Yes,51.948876,-0.250910,520309,229265,TL203292,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0DW,Yes,51.949570,-0.255277,520007,229335,TL200293,1980-01-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0DX,No,51.948324,-0.252488,520202,229201,TL202292,1980-01-01,1982-12-01,"North Hertfordshire, unparished area",67,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0DZ,No,51.948324,-0.252488,520202,229201,TL202292,1992-08-01,1994-12-01,"North Hertfordshire, unparished area",67,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0EA,Yes,51.960159,-0.255563,519959,230512,TL199305,1991-09-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0EB,Yes,51.949099,-0.256271,519940,229281,TL199292,1996-06-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0ED,Yes,51.948843,-0.255946,519963,229253,TL199292,1996-06-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0EH,Yes,51.948180,-0.254895,520037,229181,TL200291,1996-06-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0EJ,Yes,51.947893,-0.254339,520076,229150,TL200291,1996-06-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0EL,Yes,51.947158,-0.253305,520149,229070,TL201290,1996-06-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023607,North Hertfordshire 013B,E01023607,North Hertfordshire 013B
SG4 0EP,Yes,51.946375,-0.252681,520194,228984,TL201289,1996-06-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023607,North Hertfordshire 013B,E01023607,North Hertfordshire 013B
SG4 0ER,Yes,51.946746,-0.253437,520141,229024,TL201290,1996-06-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023607,North Hertfordshire 013B,E01023607,North Hertfordshire 013B
SG4 0ES,Yes,51.947483,-0.255213,520017,229103,TL200291,1996-06-01,,"North Hertfordshire, unparished area",73,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0ET,Yes,51.947801,-0.255463,519999,229138,TL199291,1996-06-01,,"North Hertfordshire, unparished area",73,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0EU,Yes,51.948244,-0.256231,519945,229186,TL199291,1996-06-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0EX,Yes,51.949092,-0.257610,519848,229278,TL198292,1996-06-01,,"North Hertfordshire, unparished area",74,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0EZ,Yes,51.945873,-0.252177,520230,228929,TL202289,1996-06-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023607,North Hertfordshire 013B,E01023607,North Hertfordshire 013B
SG4 0FB,No,51.956160,-0.256403,519912,230066,TL199300,1998-06-01,1999-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0FD,No,51.948324,-0.252488,520202,229201,TL202292,1998-06-01,1998-12-01,"North Hertfordshire, unparished area",67,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0FE,No,51.948324,-0.252488,520202,229201,TL202292,1998-12-01,1999-12-01,"North Hertfordshire, unparished area",67,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0FJ,No,51.948324,-0.252488,520202,229201,TL202292,1998-06-01,2000-10-01,"North Hertfordshire, unparished area",67,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0GR,No,51.955820,-0.257086,519866,230027,TL198300,1999-12-01,2000-06-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0HB,Yes,51.948757,-0.256851,519901,229242,TL199292,1996-12-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023610,North Hertfordshire 013E,E01023610,North Hertfordshire 013E
SG4 0HL,Yes,51.955080,-0.262980,519463,229935,TL194299,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HN,Yes,51.956079,-0.263668,519413,230045,TL194300,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HP,Yes,51.956634,-0.262890,519465,230108,TL194301,1980-01-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HR,Yes,51.956158,-0.261701,519548,230057,TL195300,1980-01-01,,"North Hertfordshire, unparished area",60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HS,Yes,51.955764,-0.262400,519501,230012,TL195300,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HT,No,51.955664,-0.262389,519502,230001,TL195300,1993-01-01,1994-12-01,"North Hertfordshire, unparished area",61,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HU,No,51.954766,-0.262424,519502,229901,TL195299,1993-08-01,1996-12-01,"North Hertfordshire, unparished area",66,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HW,Yes,51.956931,-0.264130,519379,230139,TL193301,1980-01-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HX,Yes,51.955863,-0.261232,519581,230025,TL195300,1980-01-01,,"North Hertfordshire, unparished area",60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HY,Yes,51.955802,-0.260114,519658,230020,TL196300,1980-01-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0HZ,No,51.956563,-0.262354,519502,230101,TL195301,1990-02-01,1991-12-01,"North Hertfordshire, unparished area",60,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0JA,No,51.954684,-0.263562,519424,229890,TL194298,1980-01-01,2011-09-01,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0JB,Yes,51.954730,-0.263037,519460,229896,TL194298,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0JD,Yes,51.954250,-0.259141,519729,229849,TL197298,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0JE,Yes,51.955978,-0.264749,519339,230032,TL193300,1980-01-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0JF,No,51.955643,-0.260935,519602,230001,TL196300,1991-01-01,1992-12-01,"North Hertfordshire, unparished area",60,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0JG,Yes,51.955311,-0.264615,519350,229958,TL193299,2007-07-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0JH,Yes,51.956066,-0.257295,519851,230054,TL198300,1980-01-01,,"North Hertfordshire, unparished area",57,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0JJ,No,51.957147,-0.254415,520046,230179,TL200301,1980-01-01,2023-02-01,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0JL,Yes,51.956123,-0.264191,519377,230049,TL193300,2013-07-01,,"North Hertfordshire, unparished area",62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0JN,Yes,51.957415,-0.254928,520010,230208,TL200302,1980-01-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0JP,Yes,51.958226,-0.254373,520046,230299,TL200302,1980-01-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0JQ,No,51.963103,-0.247982,520472,230852,TL204308,1995-01-01,2019-10-01,"North Hertfordshire, unparished area",88,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0JR,Yes,51.959268,-0.251887,520214,230419,TL202304,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0JS,Yes,51.959736,-0.250748,520291,230473,TL202304,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0JT,Yes,51.962858,-0.246579,520569,230827,TL205308,1980-01-01,,"North Hertfordshire, unparished area",89,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0JU,Yes,51.962101,-0.243509,520782,230748,TL207307,1980-01-01,,"North Hertfordshire, unparished area",90,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0JW,Yes,51.958620,-0.251868,520217,230347,TL202303,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0JX,Yes,51.962858,-0.246579,520569,230827,TL205308,1995-01-01,,"North Hertfordshire, unparished area",88,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0LA,Yes,51.959284,-0.249325,520390,230425,TL203304,1980-01-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0LB,Yes,51.958194,-0.250415,520318,230302,TL203303,1980-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0LD,Yes,51.956863,-0.252868,520153,230150,TL201301,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0LE,Yes,51.957703,-0.250070,520343,230248,TL203302,1980-01-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0LF,Yes,51.952658,-0.256103,519942,229677,TL199296,2022-07-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0LG,Yes,51.958375,-0.248676,520437,230325,TL204303,1980-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0LH,No,51.955557,-0.255117,520002,230001,TL200300,1982-03-01,1995-07-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0LJ,Yes,51.951723,-0.254902,520027,229575,TL200295,2022-09-01,,"North Hertfordshire, unparished area",58,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0LL,Yes,51.952207,-0.255393,519992,229628,TL199296,2022-12-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0LN,Yes,51.955666,-0.253410,520119,230016,TL201300,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0LP,Yes,51.955961,-0.256324,519918,230044,TL199300,2003-01-01,,"North Hertfordshire, unparished area",58,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0LQ,Yes,51.957647,-0.248122,520477,230245,TL204302,1980-01-01,,"North Hertfordshire, unparished area",75,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0LR,Yes,51.955358,-0.253204,520134,229982,TL201299,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0LS,Yes,51.956204,-0.250857,520293,230080,TL202300,1980-01-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0LT,Yes,51.957124,-0.248594,520446,230186,TL204301,1980-01-01,,"North Hertfordshire, unparished area",76,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0LU,Yes,51.957530,-0.243892,520768,230239,TL207302,1980-01-01,,"North Hertfordshire, unparished area",84,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0LW,Yes,51.956179,-0.256461,519908,230068,TL199300,1980-01-01,,"North Hertfordshire, unparished area",58,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0LZ,Yes,51.957170,-0.254763,520022,230181,TL200301,2024-04-01,,"North Hertfordshire, unparished area",79,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0NB,No,51.954637,-0.253697,520102,229901,TL201299,1988-03-01,1990-12-01,"North Hertfordshire, unparished area",59,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NE,Yes,51.954152,-0.252567,520181,229849,TL201298,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NF,Yes,51.951960,-0.249698,520384,229610,TL203296,1980-01-01,,"North Hertfordshire, unparished area",62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NG,Yes,51.951195,-0.246585,520600,229530,TL205295,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0NH,Yes,51.955086,-0.251279,520267,229955,TL202299,2006-03-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NJ,Yes,51.953220,-0.250988,520292,229748,TL202297,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NL,Yes,51.953250,-0.249342,520405,229754,TL204297,1980-01-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NN,Yes,51.955011,-0.251645,520242,229946,TL202299,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NP,Yes,51.952655,-0.249278,520411,229688,TL204296,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NQ,Yes,51.953925,-0.250625,520315,229827,TL203298,1980-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NR,Yes,51.951860,-0.248363,520476,229601,TL204296,1980-01-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0NS,Yes,51.952325,-0.247588,520528,229654,TL205296,1980-01-01,,"North Hertfordshire, unparished area",68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NT,Yes,51.951167,-0.244709,520729,229530,TL207295,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0NU,Yes,51.951494,-0.254038,520087,229551,TL200295,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NW,Yes,51.954470,-0.251565,520249,229886,TL202298,1980-01-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0NX,Yes,51.950313,-0.253793,520107,229420,TL201294,1980-01-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0NY,Yes,51.949365,-0.251749,520250,229318,TL202293,1980-01-01,,"North Hertfordshire, unparished area",62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0NZ,Yes,51.952098,-0.245065,520702,229633,TL207296,1980-01-01,,"North Hertfordshire, unparished area",68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PA,Yes,51.954200,-0.246118,520624,229865,TL206298,1980-01-01,,"North Hertfordshire, unparished area",81,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PB,Yes,51.956502,-0.247338,520534,230119,TL205301,1980-01-01,,"North Hertfordshire, unparished area",79,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0PD,Yes,51.951856,-0.246282,520619,229604,TL206296,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PE,Yes,51.951100,-0.252933,520164,229509,TL201295,1980-01-01,,"North Hertfordshire, unparished area",60,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PF,Yes,51.949983,-0.251565,520261,229387,TL202293,1980-01-01,,"North Hertfordshire, unparished area",61,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0PG,Yes,51.952505,-0.246446,520606,229676,TL206296,1980-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PH,Yes,51.953771,-0.249293,520407,229812,TL204298,1980-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PJ,Yes,51.954811,-0.248466,520461,229929,TL204299,1980-01-01,,"North Hertfordshire, unparished area",77,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0PL,Yes,51.955404,-0.247250,520543,229997,TL205299,1980-01-01,,"North Hertfordshire, unparished area",81,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PN,Yes,51.948386,-0.250027,520371,229212,TL203292,1980-01-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0PP,Yes,51.954545,-0.249321,520403,229898,TL204298,1980-01-01,,"North Hertfordshire, unparished area",73,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PQ,Yes,51.952991,-0.248275,520479,229727,TL204297,1980-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PR,Yes,51.955632,-0.249918,520359,230018,TL203300,1980-01-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0PS,Yes,51.955668,-0.248069,520486,230025,TL204300,1980-01-01,,"North Hertfordshire, unparished area",78,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0PT,Yes,51.956347,-0.248974,520422,230099,TL204300,1980-01-01,,"North Hertfordshire, unparished area",74,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0PU,Yes,51.953958,-0.246768,520580,229837,TL205298,1980-01-01,,"North Hertfordshire, unparished area",81,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0PW,Yes,51.948719,-0.249446,520410,229250,TL204292,1980-01-01,,"North Hertfordshire, unparished area",62,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0PX,Yes,51.946422,-0.249187,520434,228995,TL204289,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0PY,Yes,51.948773,-0.248833,520452,229257,TL204292,1980-01-01,,"North Hertfordshire, unparished area",63,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0PZ,Yes,51.945640,-0.249814,520393,228907,TL203289,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0QA,Yes,51.946326,-0.251155,520299,228981,TL202289,1980-01-01,,"North Hertfordshire, unparished area",68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0QB,Yes,51.946788,-0.250176,520365,229034,TL203290,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0QD,Yes,51.947339,-0.249777,520391,229096,TL203290,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0QE,Yes,51.959775,-0.253919,520073,230472,TL200304,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0QF,Yes,51.960791,-0.255175,519984,230583,TL199305,1980-01-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QG,Yes,51.961166,-0.253181,520120,230628,TL201306,1980-01-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QH,Yes,51.959711,-0.252088,520199,230468,TL201304,1980-01-01,,"North Hertfordshire, unparished area",64,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QJ,Yes,51.960669,-0.252385,520176,230574,TL201305,1980-01-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QL,Yes,51.961244,-0.251169,520258,230640,TL202306,1980-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QN,Yes,51.960913,-0.250047,520336,230605,TL203306,1980-01-01,,"North Hertfordshire, unparished area",71,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QP,Yes,51.960382,-0.251261,520254,230544,TL202305,1980-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QQ,Yes,51.954020,-0.260634,519627,229821,TL196298,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0QR,Yes,51.953046,-0.259813,519686,229714,TL196297,1980-01-01,,"North Hertfordshire, unparished area",68,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0QS,Yes,51.953503,-0.261527,519567,229762,TL195297,1980-01-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0QT,Yes,51.960862,-0.256322,519905,230589,TL199305,1980-01-01,,"North Hertfordshire, unparished area",73,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QU,Yes,51.961742,-0.253784,520077,230691,TL200306,1980-01-01,,"North Hertfordshire, unparished area",75,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QW,Yes,51.962925,-0.250478,520301,230828,TL203308,1980-01-01,,"North Hertfordshire, unparished area",81,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0QX,Yes,51.951372,-0.258510,519780,229530,TL197295,1980-01-01,,"North Hertfordshire, unparished area",70,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0QY,Yes,51.951251,-0.257045,519881,229519,TL198295,1980-01-01,,"North Hertfordshire, unparished area",69,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0QZ,Yes,51.961945,-0.251739,520217,230717,TL202307,1980-01-01,,"North Hertfordshire, unparished area",74,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0RA,Yes,51.962002,-0.250732,520286,230725,TL202307,1980-01-01,,"North Hertfordshire, unparished area",76,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0RB,Yes,51.954333,-0.262383,519506,229853,TL195298,1982-03-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0RD,Yes,51.962807,-0.251050,520262,230814,TL202308,1980-01-01,,"North Hertfordshire, unparished area",79,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0RE,Yes,51.962732,-0.252057,520193,230804,TL201308,1980-01-01,,"North Hertfordshire, unparished area",77,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0RF,Yes,51.959036,-0.259930,519662,230380,TL196303,1980-01-01,,"North Hertfordshire, unparished area",59,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0RG,Yes,51.959910,-0.259416,519695,230478,TL196304,1980-01-01,,"North Hertfordshire, unparished area",65,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0RH,Yes,51.952333,-0.258488,519779,229637,TL197296,1983-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023619,North Hertfordshire 011C,E01023619,North Hertfordshire 011C
SG4 0RJ,Yes,51.961445,-0.256809,519870,230653,TL198306,1990-02-01,,"North Hertfordshire, unparished area",75,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0RQ,Yes,51.960808,-0.258129,519781,230580,TL197305,1980-01-01,,"North Hertfordshire, unparished area",72,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023617,North Hertfordshire 011A,E01023617,North Hertfordshire 011A
SG4 0RS,Yes,51.950503,-0.255707,519975,229438,TL199294,1992-01-01,,"North Hertfordshire, unparished area",67,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023620,North Hertfordshire 011D,E01023620,North Hertfordshire 011D
SG4 0RT,No,51.956160,-0.256403,519912,230066,TL199300,1995-12-01,1999-06-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0RW,No,51.956161,-0.256418,519911,230066,TL199300,1995-07-01,1997-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0XA,No,51.947404,-0.251069,520302,229101,TL203291,1983-01-01,1985-12-01,"North Hertfordshire, unparished area",67,England,2025-07-24,Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference,E01023621,North Hertfordshire 011E,E01023621,North Hertfordshire 011E
SG4 0XJ,No,51.956161,-0.256418,519911,230066,TL199300,1996-06-01,1997-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0XN,No,51.956161,-0.256418,519911,230066,TL199300,1996-12-01,1997-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0XR,No,51.956161,-0.256418,519911,230066,TL199300,1997-06-01,1997-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0XT,No,51.956161,-0.256418,519911,230066,TL199300,1997-12-01,1998-06-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0XU,No,51.955820,-0.257086,519866,230027,TL198300,1998-12-01,1999-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0YS,No,51.955820,-0.257086,519866,230027,TL198300,1999-06-01,2000-10-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0YT,No,51.956161,-0.256418,519911,230066,TL199300,1997-06-01,1997-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0YU,No,51.956160,-0.256403,519912,230066,TL199300,1997-06-01,1998-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0YX,No,51.956161,-0.256418,519911,230066,TL199300,1997-12-01,1998-06-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 0YY,No,51.956160,-0.256403,519912,230066,TL199300,1997-12-01,1998-12-01,"North Hertfordshire, unparished area",58,England,2025-07-24,Postcode sector mean (mainly PO Boxes),E01023618,North Hertfordshire 011B,E01023618,North Hertfordshire 011B
SG4 9QL,Yes,51.944774,-0.250197,520369,228810,TL203288,1980-01-01,,"North Hertfordshire, unparished area",66,England,2025-07-24,Within the building of the matched address closest to the postcode mean,E01023607,North Hertfordshire 013B,E01023607,North Hertfordshire 013B