SG6 4 postcodes North Hertfordshire

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This is a list of postcodes in the SG6 4 area covering the areas of Letchworth, North Hertfordshire. The area contains approximately 5,461 households with a population of about 12,405 (2011 census)

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Key Active postcodeActive postcode Postcode no longer in usePostcode no longer in use
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  • Page 1 of 2 (345 postcodes, 268 active)
Postcode Latitude Longitude Easting Northing Grid reference Active?
SG6 4AA51.98155-0.232568521481232929TL214329Yes
SG6 4AB51.977808-0.23969521002232501TL210325No
SG6 4AD51.980303-0.234553521348232787TL213327Yes
SG6 4AE51.980429-0.23516521306232800TL213328Yes
SG6 4AF51.97954-0.235253521302232701TL213327No
SG6 4AG51.978641-0.235289521302232601TL213326No
SG6 4AH51.979029-0.236555521214232642TL212326No
SG6 4AJ51.977851-0.2426520802232501TL208325No
SG6 4AL51.977342-0.247643520457232436TL204324Yes
SG6 4AN51.979284-0.238001521114232668TL211326Yes
SG6 4AP51.986817-0.234807521313233511TL213335No
SG6 4AQ51.978641-0.235289521302232601TL213326No
SG6 4AR51.977917-0.241564520873232510TL208325Yes
SG6 4AS51.97706-0.241976520847232414TL208324No
SG6 4AT51.978077-0.243887520713232524TL207325Yes
SG6 4AU51.977662-0.243204520761232479TL207324Yes
SG6 4AW51.978375-0.240949520914232562TL209325Yes
SG6 4AX51.977818-0.245819520581232492TL205324Yes
SG6 4AY51.976974-0.24409520702232401TL207324No
SG6 4AZ51.978876-0.248035520426232606TL204326Yes
SG6 4BA51.976368-0.247448520473232328TL204323Yes
SG6 4BB51.976996-0.245545520602232401TL206324No
SG6 4BD51.979405-0.247286520476232666TL204326Yes
SG6 4BE51.980013-0.248281520406232732TL204327Yes
SG6 4BF51.986817-0.234807521313233511TL213335No
SG6 4BG51.979761-0.248859520367232703TL203327Yes
SG6 4BH51.981716-0.247312520468232923TL204329Yes
SG6 4BJ51.981347-0.24606520555232884TL205328Yes
SG6 4BL51.983087-0.243997520692233081TL206330Yes
SG6 4BN51.982444-0.243061520758233011TL207330Yes
SG6 4BP51.983853-0.247083520478233161TL204331Yes
SG6 4BQ51.98185-0.247889520428232937TL204329Yes
SG6 4BS51.981508-0.246607520517232901TL205329Yes
SG6 4BT51.983134-0.235112521302233101TL213331No
SG6 4BU51.982981-0.224924522002233101TL220331No
SG6 4BW51.983385-0.245266520604233112TL206331Yes
SG6 4BX51.981453-0.209477523067232957TL230329No
SG6 4BY51.978611-0.236251521236232596TL212325Yes
SG6 4BZ51.978686-0.237718521135232602TL211326Yes
SG6 4DA51.979985-0.236765521197232748TL211327Yes
SG6 4DB51.980053-0.238291521092232753TL210327Yes
SG6 4DD51.980926-0.236582521207232853TL212328Yes
SG6 4DE51.981039-0.238121521101232863TL211328Yes
SG6 4DF51.982987-0.234899521317233085TL213330Yes
SG6 4DG51.976766-0.240954520918232383TL209323Yes
SG6 4DH51.981315-0.233727521402232901TL214329No
SG6 4DJ51.981363-0.234541521346232905TL213329Yes
SG6 4DL51.98082-0.235494521282232843TL212328Yes
SG6 4DN51.982033-0.235403521285232978TL212329Yes
SG6 4DP51.982217-0.23573521262232998TL212329Yes
SG6 4DQ51.977256-0.241298520893232437TL208324Yes
SG6 4DR51.982498-0.237059521170233027TL211330Yes
SG6 4DS51.983881-0.238752521050233178TL210331Yes
SG6 4DT51.983588-0.238953521037233145TL210331Yes
SG6 4DU51.983157-0.239625520992233096TL209330Yes
SG6 4DW51.981799-0.236577521205232950TL212329Yes
SG6 4DX51.983784-0.241887520835233162TL208331Yes
SG6 4DY51.984405-0.244353520664233227TL206332Yes
SG6 4DZ51.983434-0.242541520791233122TL207331Yes
SG6 4EA51.984038-0.245008520620233185TL206331Yes
SG6 4EB51.98442-0.242314520804233232TL208332Yes
SG6 4ED51.985115-0.241893520831233310TL208333Yes
SG6 4EE51.985542-0.242197520809233357TL208333Yes
SG6 4EF51.985241-0.240694520913233326TL209333Yes
SG6 4EG51.985006-0.246616520507233290TL205332Yes
SG6 4EH51.984444-0.239677520985233239TL209332Yes
SG6 4EJ51.984993-0.240966520895233298TL208332Yes
SG6 4EL51.986889-0.234848521310233519TL213335No
SG6 4EN51.993487-0.234094521344234254TL213342Yes
SG6 4EP51.980395-0.232307521502232801TL215328No
SG6 4EQ51.984979-0.239991520962233298TL209332Yes
SG6 4ER51.981002-0.230813521603232871TL216328Yes
SG6 4ES51.98121-0.231518521554232893TL215328Yes
SG6 4ET51.980316-0.232427521494232792TL214327Yes
SG6 4EU51.980395-0.232307521502232801TL215328No
SG6 4EW51.980395-0.232307521502232801TL215328No
SG6 4EX51.982773-0.232621521474233065TL214330Yes
SG6 4EY51.982445-0.234091521374233026TL213330Yes
SG6 4EZ51.984049-0.233168521433233206TL214332Yes
SG6 4FA51.98732-0.237817521105233562TL211335Yes
SG6 4FB51.987293-0.237788521107233559TL211335No
SG6 4FE51.986889-0.234848521310233519TL213335No
SG6 4FF51.986889-0.234848521310233519TL213335No
SG6 4FG51.986773-0.237882521102233501TL211335No
SG6 4FH51.986817-0.234807521313233511TL213335No
SG6 4FJ51.986773-0.237882521102233501TL211335No
SG6 4FL51.986817-0.234807521313233511TL213335No
SG6 4FN51.981628-0.209208523085232977TL230329No
SG6 4FP51.986817-0.234807521313233511TL213335No
SG6 4FQ51.986817-0.234807521313233511TL213335No
SG6 4FR51.986817-0.234807521313233511TL213335No
SG6 4FS51.987293-0.237788521107233559TL211335No
SG6 4FT51.981628-0.209208523085232977TL230329No
SG6 4FW51.988461-0.232325521479233698TL214336Yes
SG6 4GB51.986773-0.237882521102233501TL211335No
SG6 4GD51.986817-0.234807521313233511TL213335No
SG6 4GE51.987293-0.237788521107233559TL211335No
SG6 4GJ51.986817-0.234807521313233511TL213335No
SG6 4GY51.979999-0.233531521419232755TL214327Yes
SG6 4HA51.980417-0.233763521402232801TL214328No
SG6 4HD51.979496-0.232343521502232701TL215327No
SG6 4HE51.985733-0.233335521417233393TL214333Yes
SG6 4HF51.986134-0.230683521598233442TL215334Yes
SG6 4HG51.985771-0.23045521615233402TL216334Yes
SG6 4HH51.986963-0.231991521506233532TL215335Yes
SG6 4HJ51.986632-0.231523521539233496TL215334Yes
SG6 4HL51.986365-0.234068521365233462TL213334Yes
SG6 4HN51.986446-0.234691521322233470TL213334Yes
SG6 4HP51.985446-0.236987521167233355TL211333Yes
SG6 4HQ51.98726-0.228993521711233570TL217335Yes
SG6 4HR51.986323-0.238511521060233450TL210334Yes
SG6 4HS51.986121-0.236422521204233431TL212334Yes
SG6 4HT51.986452-0.236263521214233468TL212334Yes
SG6 4HW51.98517-0.234712521324233328TL213333Yes
SG6 4HX51.98765-0.236391521202233601TL212336No
SG6 4HY51.990445-0.236325521199233912TL211339Yes
SG6 4HZ51.98994-0.235631521248233857TL212338Yes
SG6 4JA51.988474-0.22363522076233714TL220337Yes
SG6 4JB51.989121-0.224784521995233784TL219337Yes
SG6 4JD51.988369-0.226809521858233697TL218336Yes
SG6 4JE51.988624-0.23478521310233712TL213337Yes
SG6 4JF51.988754-0.233318521410233729TL214337Yes
SG6 4JG51.987723-0.23049521607233619TL216336Yes
SG6 4JH51.988162-0.233371521408233663TL214336Yes
SG6 4JJ51.987019-0.236285521211233531TL212335Yes
SG6 4JL51.98667-0.238847521036233488TL210334Yes
SG6 4JN51.98675-0.240606520915233494TL209334Yes
SG6 4JP51.991375-0.244984520602234001TL206340No
SG6 4JQ51.987803-0.233429521405233623TL214336Yes
SG6 4JR51.997188-0.24346520691234650TL206346Yes
SG6 4JS51.991879-0.248678520347234051TL203340Yes
SG6 4JT51.984389-0.248052520410233219TL204332Yes
SG6 4JU51.982662-0.249255520332233025TL203330Yes
SG6 4JW51.985922-0.243536520716233397TL207333Yes
SG6 4JX51.982911-0.248489520384233054TL203330Yes
SG6 4JY51.981133-0.250422520256232853TL202328Yes
SG6 4JZ51.980639-0.249844520297232799TL202327Yes
SG6 4LA51.981973-0.248845520362232949TL203329Yes
SG6 4LB51.981227-0.251321520194232862TL201328Yes
SG6 4LD51.980439-0.250944520222232775TL202327Yes
SG6 4LE51.9798-0.252716520102232701TL201327No
SG6 4LF51.980118-0.252966520084232736TL200327Yes
SG6 4LG51.979541-0.252857520093232672TL200326Yes
SG6 4LH51.98948-0.233712521381233809TL213338Yes
SG6 4LJ51.989431-0.23469521314233802TL213338Yes
SG6 4LL51.990338-0.235179521278233902TL212339Yes
SG6 4LN51.989686-0.225301521958233846TL219338Yes
SG6 4LP51.989445-0.22783521785233815TL217338Yes
SG6 4LQ51.990561-0.234471521326233928TL213339Yes
SG6 4LR51.988972-0.226829521855233764TL218337Yes
SG6 4LS51.988899-0.227953521778233754TL217337Yes
SG6 4LT51.990568-0.227727521789233940TL217339Yes
SG6 4LU51.991651-0.227422521807234061TL218340Yes
SG6 4LW51.990045-0.225228521962233886TL219338Yes
SG6 4LX51.990642-0.228452521739233947TL217339Yes
SG6 4LY51.989638-0.229249521687233834TL216338Yes
SG6 4LZ51.991355-0.229269521681234025TL216340Yes
SG6 4NA51.991925-0.231286521541234085TL215340Yes
SG6 4NB51.991377-0.226515521870234032TL218340Yes
SG6 4ND51.990515-0.224205522031233940TL220339Yes
SG6 4NE51.990759-0.226103521900233964TL218339Yes
SG6 4NF51.991297-0.224771521990234026TL219340Yes
SG6 4NG51.991647-0.22534521950234064TL219340Yes
SG6 4NH51.992044-0.224261522023234110TL220341Yes
SG6 4NJ51.99199-0.226025521902234101TL219341No
SG6 4NL51.991364-0.22388522051234035TL220340Yes
SG6 4NN51.991907-0.223509522075234096TL220340Yes
SG6 4NP51.991419-0.222756522128234043TL221340Yes
SG6 4NQ51.991185-0.225693521927234012TL219340Yes
SG6 4NR51.992362-0.226855521844234141TL218341Yes
SG6 4NS51.991831-0.226206521890234083TL218340Yes
SG6 4NT51.989286-0.236414521196233783TL211337Yes
SG6 4NU51.992012-0.227481521802234101TL218341No
SG6 4NW51.991049-0.223237522096234001TL220340Yes
SG6 4NZ51.990069-0.222067522179233894TL221338Yes
SG6 4PA51.990974-0.221842522192233995TL221339Yes
SG6 4PB51.991615-0.222006522179234066TL221340Yes
SG6 4PD51.991166-0.220858522259234018TL222340Yes
SG6 4PE51.992142-0.220601522274234127TL222341Yes
SG6 4PF51.993928-0.218593522407234329TL224343Yes
SG6 4PG51.993826-0.219588522339234316TL223343Yes
SG6 4PH51.995901-0.220015522304234546TL223345Yes
SG6 4PJ51.996205-0.221096522229234578TL222345Yes
SG6 4PL51.996319-0.222679522120234588TL221345Yes
SG6 4PN51.997069-0.22415522017234669TL220346Yes
SG6 4PP51.997638-0.226094521882234729TL218347Yes
SG6 4PQ51.995402-0.218564522405234493TL224344Yes
SG6 4PR51.996814-0.225718521910234638TL219346Yes
SG6 4PS51.996217-0.226077521887234571TL218345Yes
SG6 4PT51.995078-0.22567521918234445TL219344Yes
SG6 4PU51.996272-0.224938521965234579TL219345Yes
SG6 4PW51.997382-0.225812521902234701TL219347No
SG6 4PX51.994829-0.222854522112234422TL221344Yes
SG6 4PY51.995686-0.223636522056234516TL220345Yes
SG6 4PZ51.994458-0.221543522203234383TL222343Yes
SG6 4QA51.99462-0.222149522161234400TL221344Yes
SG6 4QB51.994133-0.220872522250234348TL222343Yes
SG6 4QD51.994161-0.220317522288234352TL222343Yes
SG6 4QE51.97943-0.233947521392232691TL213326Yes
SG6 4QF51.97906-0.235054521317232648TL213326Yes
  • Page 1 of 2 (345 postcodes, 268 active)
Contains OS data © Crown copyright and database right 2025
Contains Royal Mail data © Royal Mail copyright and database right 2025
Contains National Statistics data © Crown copyright and database rights 2025
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
Contains data from Wikipedia covered by the Creative Commons license




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