This page provides postcode data for the Hertfordshire English ceremonial county. Hertfordshire contains approximately 453,813 households with a population of about 1,116,077 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| SG1 6AY | 51.930913 | -0.169979 | 525921 | 227404 | TL259274 | Yes |
| SG1 6AZ | 51.931398 | -0.170526 | 525882 | 227457 | TL258274 | Yes |
| SG1 6BA | 51.930916 | -0.171332 | 525828 | 227402 | TL258274 | Yes |
| SG1 6BB | 51.9302 | -0.170415 | 525893 | 227324 | TL258273 | Yes |
| SG1 6BD | 51.929671 | -0.177433 | 525412 | 227253 | TL254272 | Yes |
| SG1 6BE | 51.930066 | -0.178581 | 525332 | 227295 | TL253272 | Yes |
| SG1 6BF | 51.928447 | -0.165789 | 526216 | 227137 | TL262271 | Yes |
| SG1 6BG | 51.929017 | -0.166042 | 526197 | 227200 | TL261271 | Yes |
| SG1 6BH | 51.930268 | -0.167823 | 526071 | 227336 | TL260273 | Yes |
| SG1 6BJ | 51.929878 | -0.162981 | 526405 | 227301 | TL264273 | Yes |
| SG1 6BL | 51.930479 | -0.162346 | 526447 | 227369 | TL264273 | Yes |
| SG1 6BN | 51.929666 | -0.16379 | 526350 | 227276 | TL263272 | Yes |
| SG1 6BP | 51.929935 | -0.162033 | 526470 | 227309 | TL264273 | Yes |
| SG1 6BQ | 51.928019 | -0.166024 | 526201 | 227089 | TL262270 | Yes |
| SG1 6BS | 51.928843 | -0.161234 | 526528 | 227189 | TL265271 | Yes |
| SG1 6BT | 51.927703 | -0.16131 | 526526 | 227062 | TL265270 | Yes |
| SG1 6BU | 51.930155 | -0.165792 | 526211 | 227327 | TL262273 | Yes |
| SG1 6BW | 51.929501 | -0.164175 | 526324 | 227257 | TL263272 | Yes |
| SG1 6BX | 51.930991 | -0.164027 | 526330 | 227423 | TL263274 | Yes |
| SG1 6BY | 51.930343 | -0.163384 | 526376 | 227352 | TL263273 | Yes |
| SG1 6BZ | 51.929635 | -0.166991 | 526130 | 227267 | TL261272 | Yes |
| SG1 6DA | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6DB | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6DD | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6DE | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6DF | 51.931055 | -0.18145 | 525132 | 227400 | TL251273 | Yes |
| SG1 6DG | 51.930602 | -0.171359 | 525827 | 227367 | TL258273 | No |
| SG1 6DH | 51.931248 | -0.179987 | 525232 | 227424 | TL252274 | Yes |
| SG1 6DJ | 51.931153 | -0.180849 | 525173 | 227412 | TL251274 | Yes |
| SG1 6DL | 51.931066 | -0.179297 | 525280 | 227405 | TL252274 | Yes |
| SG1 6DN | 51.930563 | -0.182241 | 525079 | 227344 | TL250273 | Yes |
| SG1 6DP | 51.929711 | -0.170741 | 525872 | 227269 | TL258272 | Yes |
| SG1 6DQ | 51.929385 | -0.170594 | 525883 | 227233 | TL258272 | Yes |
| SG1 6DR | 51.931914 | -0.170156 | 525906 | 227515 | TL259275 | Yes |
| SG1 6DS | 51.928913 | -0.169755 | 525942 | 227182 | TL259271 | Yes |
| SG1 6DT | 51.929041 | -0.168717 | 526013 | 227198 | TL260271 | Yes |
| SG1 6DU | 51.929433 | -0.171406 | 525827 | 227237 | TL258272 | Yes |
| SG1 6EA | 51.930991 | -0.173263 | 525695 | 227407 | TL256274 | Yes |
| SG1 6EB | 51.930681 | -0.17473 | 525595 | 227370 | TL255273 | Yes |
| SG1 6EJ | 51.930464 | -0.173517 | 525679 | 227348 | TL256273 | Yes |
| SG1 6GA | 51.932681 | -0.171478 | 525813 | 227598 | TL258275 | Yes |
| SG1 6GB | 51.931949 | -0.180003 | 525229 | 227502 | TL252275 | Yes |
| SG1 6GD | 51.932 | -0.179201 | 525284 | 227509 | TL252275 | Yes |
| SG1 6GE | 51.93291 | -0.172909 | 525714 | 227621 | TL257276 | Yes |
| SG1 6GF | 51.932295 | -0.173865 | 525650 | 227551 | TL256275 | Yes |
| SG1 6GG | 51.932913 | -0.173723 | 525658 | 227620 | TL256276 | Yes |
| SG1 6GH | 51.933272 | -0.171323 | 525822 | 227664 | TL258276 | Yes |
| SG1 6GJ | 51.93273 | -0.179287 | 525276 | 227590 | TL252275 | Yes |
| SG1 6GL | 51.93219 | -0.17576 | 525520 | 227536 | TL255275 | Yes |
| SG1 6GN | 51.933297 | -0.175831 | 525512 | 227659 | TL255276 | Yes |
| SG1 6GP | 51.931602 | -0.177908 | 525374 | 227467 | TL253274 | Yes |
| SG1 6GQ | 51.933138 | -0.174281 | 525619 | 227644 | TL256276 | Yes |
| SG1 6GR | 51.933911 | -0.173101 | 525698 | 227732 | TL256277 | Yes |
| SG1 6GS | 51.93194 | -0.17705 | 525432 | 227506 | TL254275 | Yes |
| SG1 6GT | 51.932045 | -0.176275 | 525485 | 227519 | TL254275 | Yes |
| SG1 6GU | 51.933575 | -0.176955 | 525434 | 227688 | TL254276 | Yes |
| SG1 6GW | 51.932977 | -0.176703 | 525453 | 227622 | TL254276 | Yes |
| SG1 6GX | 51.933139 | -0.177263 | 525414 | 227639 | TL254276 | Yes |
| SG1 6GY | 51.932592 | -0.178522 | 525329 | 227576 | TL253275 | Yes |
| SG1 6GZ | 51.932492 | -0.177857 | 525375 | 227566 | TL253275 | Yes |
| SG1 6HA | 51.933425 | -0.178299 | 525342 | 227669 | TL253276 | Yes |
| SG1 6HB | 51.934056 | -0.177822 | 525373 | 227740 | TL253277 | Yes |
| SG1 6HW | 51.93354 | -0.174119 | 525629 | 227689 | TL256276 | Yes |
| SG1 6NH | 51.92982 | -0.170823 | 525866 | 227281 | TL258272 | Yes |
| SG1 6NJ | 51.928621 | -0.17061 | 525884 | 227148 | TL258271 | Yes |
| SG1 6NP | 51.928578 | -0.171892 | 525796 | 227141 | TL257271 | Yes |
| SG1 6WA | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6WU | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6WW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6WX | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6WY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6WZ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6XH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6XJ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6XQ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6XZ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6ZS | 51.930475 | -0.173604 | 525673 | 227349 | TL256273 | No |
| SG1 6ZT | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6ZU | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 6ZW | 51.930475 | -0.173604 | 525673 | 227349 | TL256273 | No |
| SG1 6ZX | 51.930563 | -0.182241 | 525079 | 227344 | TL250273 | No |
| SG1 6ZY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AA | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AB | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AD | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9AF | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AG | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AJ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AL | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AN | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AP | 51.901184 | -0.203211 | 523718 | 224041 | TL237240 | No |
| SG1 9AQ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9AR | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AS | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AT | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AX | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9AZ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BA | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9BD | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BE | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9BF | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BG | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BJ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BL | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BN | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BP | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9BQ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BR | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BS | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BT | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9BW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BX | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9BZ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DA | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DB | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DD | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DE | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DF | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DG | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DJ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DL | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DN | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DP | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DQ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DR | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DS | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DT | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DU | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DX | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9DZ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EA | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EB | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9ED | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EE | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EF | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EG | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9EH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EJ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EL | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EN | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EP | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EQ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9ER | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9ES | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9ET | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9EU | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EX | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9EY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9EZ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FA | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9FB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9FD | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FE | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FF | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FG | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FJ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FL | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FN | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9FP | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FQ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FR | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FS | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FT | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9FW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FX | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FY | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9FZ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9GA | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9GB | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9GD | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GE | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GF | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9GG | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GH | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GJ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GL | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GN | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GP | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9GQ | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | Yes |
| SG1 9GS | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9GT | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GU | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |
| SG1 9GW | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GX | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9GZ | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HB | 51.896116 | -0.202831 | 523758 | 223478 | TL237234 | No |
| SG1 9HD | 51.896091 | -0.202978 | 523748 | 223475 | TL237234 | No |