This page provides postcode data for the Hertfordshire English ceremonial county. Hertfordshire contains approximately 453,814 households with a population of about 1,116,078 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| HP23 6JQ | 51.765616 | -0.637831 | 494099 | 208315 | SP940083 | Yes |
| HP23 6JR | 51.784381 | -0.67477 | 491512 | 210355 | SP915103 | Yes |
| HP23 6JS | 51.783447 | -0.678871 | 491231 | 210246 | SP912102 | Yes |
| HP23 6JW | 51.763279 | -0.628657 | 494737 | 208067 | SP947080 | Yes |
| HP23 6LP | 51.776999 | -0.670798 | 491801 | 209539 | SP918095 | No |
| HP23 6LR | 51.777166 | -0.670416 | 491827 | 209558 | SP918095 | Yes |
| HP23 6LS | 51.776629 | -0.673084 | 491644 | 209495 | SP916094 | Yes |
| HP23 6LT | 51.763735 | -0.648611 | 493359 | 208092 | SP933080 | Yes |
| HP23 6LU | 51.775685 | -0.665951 | 492138 | 209399 | SP921093 | Yes |
| HP23 6LW | 51.778292 | -0.664237 | 492251 | 209691 | SP922096 | Yes |
| HP23 6LX | 51.773502 | -0.669248 | 491915 | 209152 | SP919091 | Yes |
| HP23 6LY | 51.768753 | -0.673127 | 491657 | 208619 | SP916086 | Yes |
| HP23 6PD | 51.760881 | -0.646711 | 493496 | 207777 | SP934077 | Yes |
| HP23 6PE | 51.770181 | -0.654795 | 492919 | 208801 | SP929088 | Yes |
| HP23 6PG | 51.774827 | -0.667948 | 492002 | 209301 | SP920093 | No |
| HP23 6PH | 51.778186 | -0.651803 | 493109 | 209695 | SP931096 | No |
| HP23 6PJ | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6PL | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 6PS | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6PT | 51.791404 | -0.668359 | 491940 | 211144 | SP919111 | No |
| HP23 6PU | 51.790817 | -0.668927 | 491902 | 211078 | SP919110 | Yes |
| HP23 6PX | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6QA | 51.792532 | -0.664034 | 492236 | 211275 | SP922112 | Yes |
| HP23 6QB | 51.775058 | -0.670115 | 491852 | 209324 | SP918093 | Yes |
| HP23 6QD | 51.774685 | -0.670489 | 491827 | 209282 | SP918092 | Yes |
| HP23 6QH | 51.791873 | -0.664546 | 492202 | 211201 | SP922112 | No |
| HP23 6QJ | 51.782218 | -0.645913 | 493507 | 210151 | SP935101 | No |
| HP23 6QL | 51.783564 | -0.644104 | 493629 | 210303 | SP936103 | Yes |
| HP23 6QP | 51.79076 | -0.663956 | 492245 | 211078 | SP922110 | Yes |
| HP23 6QS | 51.775099 | -0.671375 | 491765 | 209327 | SP917093 | Yes |
| HP23 6QT | 51.791873 | -0.664546 | 492202 | 211201 | SP922112 | No |
| HP23 6QU | 51.78891 | -0.667359 | 492014 | 210868 | SP920108 | Yes |
| HP23 6QX | 51.792479 | -0.664093 | 492232 | 211269 | SP922112 | No |
| HP23 6QY | 51.792479 | -0.664093 | 492232 | 211269 | SP922112 | No |
| HP23 6QZ | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6RA | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6RB | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6RD | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6RH | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6RJ | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6RL | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6RS | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6RU | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6RX | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6SA | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6SD | 51.791501 | -0.664224 | 492225 | 211160 | SP922111 | Yes |
| HP23 6WA | 51.7915 | -0.664151 | 492230 | 211160 | SP922111 | No |
| HP23 6WG | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WJ | 51.7915 | -0.664151 | 492230 | 211160 | SP922111 | No |
| HP23 6WN | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WP | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WQ | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WR | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WS | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WT | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WU | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WW | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WX | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6WY | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP23 6WZ | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6XA | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6XB | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6XJ | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 6XQ | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6XR | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6YR | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6YS | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6YT | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 6YU | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 6YX | 51.778194 | -0.651788 | 493110 | 209696 | SP931096 | No |
| HP23 6YY | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6ZJ | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6ZN | 51.791991 | -0.667805 | 491977 | 211210 | SP919112 | No |
| HP23 6ZX | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9AA | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AD | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AE | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AF | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AG | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AH | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9AJ | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AL | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AN | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AP | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AQ | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP23 9AR | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AS | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AT | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AU | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AW | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AX | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AY | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9AZ | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9BA | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9BB | 51.79226 | -0.668522 | 491927 | 211239 | SP919112 | No |
| HP23 9BD | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BE | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BF | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BG | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BH | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9BJ | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BL | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BN | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BP | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BQ | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BR | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP23 9BS | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BT | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BU | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BW | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BX | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BY | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9BZ | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP23 9DA | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9DB | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9DD | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9DE | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9DF | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9DG | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9DH | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9DJ | 51.79225 | -0.668436 | 491933 | 211238 | SP919112 | No |
| HP23 9DL | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9DN | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP23 9DP | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9DQ | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9DR | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9DS | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9DT | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9DU | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | No |
| HP23 9DW | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP23 9DX | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP23 9DY | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP23 9DZ | 51.792286 | -0.668449 | 491932 | 211242 | SP919112 | Yes |
| HP3 0AA | 51.728836 | -0.470916 | 505702 | 204453 | TL057044 | Yes |
| HP3 0AB | 51.731398 | -0.471539 | 505653 | 204737 | TL056047 | Yes |
| HP3 0AD | 51.735333 | -0.470537 | 505713 | 205176 | TL057051 | Yes |
| HP3 0AE | 51.736436 | -0.472412 | 505581 | 205296 | TL055052 | Yes |
| HP3 0AF | 51.735351 | -0.46987 | 505759 | 205179 | TL057051 | Yes |
| HP3 0AG | 51.734374 | -0.471511 | 505648 | 205068 | TL056050 | Yes |
| HP3 0AH | 51.735725 | -0.473725 | 505492 | 205215 | TL054052 | Yes |
| HP3 0AJ | 51.73467 | -0.475556 | 505368 | 205095 | TL053050 | Yes |
| HP3 0AL | 51.736027 | -0.472773 | 505557 | 205250 | TL055052 | Yes |
| HP3 0AN | 51.735079 | -0.472443 | 505582 | 205145 | TL055051 | Yes |
| HP3 0AP | 51.735886 | -0.475747 | 505352 | 205230 | TL053052 | Yes |
| HP3 0AQ | 51.736613 | -0.473535 | 505503 | 205314 | TL055053 | Yes |
| HP3 0AR | 51.735034 | -0.473835 | 505486 | 205138 | TL054051 | Yes |
| HP3 0AS | 51.727808 | -0.471341 | 505675 | 204338 | TL056043 | Yes |
| HP3 0AT | 51.742273 | -0.494766 | 504025 | 205913 | TL040059 | Yes |
| HP3 0AU | 51.733002 | -0.473208 | 505534 | 204913 | TL055049 | Yes |
| HP3 0AW | 51.733914 | -0.474814 | 505421 | 205012 | TL054050 | Yes |
| HP3 0AX | 51.741073 | -0.493083 | 504143 | 205782 | TL041057 | Yes |
| HP3 0AY | 51.735911 | -0.470749 | 505697 | 205240 | TL056052 | Yes |
| HP3 0AZ | 51.728613 | -0.470996 | 505697 | 204428 | TL056044 | No |
| HP3 0BA | 51.741311 | -0.495523 | 503974 | 205805 | TL039058 | Yes |
| HP3 0BB | 51.738544 | -0.495021 | 504015 | 205498 | TL040054 | Yes |
| HP3 0BD | 51.736456 | -0.492787 | 504174 | 205269 | TL041052 | Yes |
| HP3 0BE | 51.736027 | -0.494366 | 504066 | 205219 | TL040052 | Yes |
| HP3 0BF | 51.737388 | -0.496058 | 503947 | 205368 | TL039053 | Yes |
| HP3 0BG | 51.735685 | -0.491568 | 504260 | 205185 | TL042051 | Yes |
| HP3 0BH | 51.738504 | -0.49117 | 504281 | 205499 | TL042054 | No |
| HP3 0BJ | 51.738164 | -0.487126 | 504561 | 205467 | TL045054 | Yes |
| HP3 0BL | 51.734389 | -0.49778 | 503834 | 205032 | TL038050 | Yes |
| HP3 0BN | 51.732414 | -0.498063 | 503819 | 204812 | TL038048 | Yes |
| HP3 0BP | 51.729038 | -0.491369 | 504289 | 204446 | TL042044 | Yes |
| HP3 0BQ | 51.738668 | -0.492062 | 504219 | 205516 | TL042055 | Yes |
| HP3 0BS | 51.739078 | -0.502346 | 503508 | 205547 | TL035055 | Yes |
| HP3 0BT | 51.733815 | -0.490196 | 504359 | 204979 | TL043049 | Yes |
| HP3 0BU | 51.732731 | -0.486974 | 504584 | 204863 | TL045048 | Yes |
| HP3 0BW | 51.729954 | -0.497608 | 503856 | 204539 | TL038045 | Yes |
| HP3 0BX | 51.733135 | -0.494621 | 504055 | 204897 | TL040048 | Yes |
| HP3 0BY | 51.733993 | -0.49494 | 504031 | 204992 | TL040049 | Yes |
| HP3 0BZ | 51.738576 | -0.494006 | 504085 | 205503 | TL040055 | Yes |
| HP3 0DA | 51.722366 | -0.538383 | 501057 | 203638 | TL010036 | Yes |
| HP3 0DB | 51.748408 | -0.469863 | 505730 | 206631 | TL057066 | No |
| HP3 0DD | 51.738976 | -0.49786 | 503818 | 205542 | TL038055 | Yes |
| HP3 0DE | 51.74194 | -0.498283 | 503782 | 205871 | TL037058 | Yes |
| HP3 0DF | 51.740311 | -0.498206 | 503791 | 205690 | TL037056 | Yes |
| HP3 0DG | 51.741115 | -0.49986 | 503675 | 205777 | TL036057 | Yes |
| HP3 0DH | 51.739929 | -0.499247 | 503720 | 205646 | TL037056 | Yes |
| HP3 0DJ | 51.736166 | -0.50599 | 503263 | 205218 | TL032052 | Yes |
| HP3 0DL | 51.734856 | -0.503325 | 503451 | 205076 | TL034050 | Yes |
| HP3 0DN | 51.73312 | -0.511145 | 502914 | 204872 | TL029048 | Yes |
| HP3 0DP | 51.72934 | -0.518711 | 502401 | 204441 | TL024044 | Yes |
| HP3 0DQ | 51.748408 | -0.469863 | 505730 | 206631 | TL057066 | No |
| HP3 0DR | 51.730482 | -0.520803 | 502253 | 204565 | TL022045 | Yes |
| HP3 0DS | 51.730183 | -0.525649 | 501919 | 204525 | TL019045 | Yes |
| HP3 0DT | 51.735542 | -0.521304 | 502207 | 205127 | TL022051 | Yes |
| HP3 0DU | 51.728171 | -0.526525 | 501864 | 204300 | TL018042 | Yes |
| HP3 0DW | 51.732093 | -0.510947 | 502930 | 204758 | TL029047 | Yes |
| HP3 0DX | 51.737808 | -0.500042 | 503670 | 205409 | TL036054 | Yes |
| HP3 0DY | 51.738708 | -0.496565 | 503908 | 205514 | TL039055 | Yes |
| HP3 0DZ | 51.737662 | -0.499134 | 503733 | 205394 | TL037053 | Yes |
| HP3 0EA | 51.72324 | -0.536342 | 501197 | 203738 | TL011037 | Yes |
| HP3 0EB | 51.723143 | -0.535795 | 501235 | 203728 | TL012037 | Yes |
| HP3 0ED | 51.723681 | -0.536386 | 501193 | 203787 | TL011037 | Yes |
| HP3 0EE | 51.721885 | -0.538036 | 501083 | 203585 | TL010035 | Yes |
| HP3 0EF | 51.722154 | -0.539418 | 500986 | 203613 | TL009036 | Yes |
| HP3 0EG | 51.721054 | -0.537687 | 501108 | 203493 | TL011034 | Yes |
| HP3 0EH | 51.723038 | -0.536725 | 501171 | 203715 | TL011037 | No |
| HP3 0EJ | 51.725151 | -0.535977 | 501217 | 203951 | TL012039 | Yes |