This page provides postcode data for the North Hertfordshire, unparished area parish. North Hertfordshire, unparished area contains approximately 32,585 households with a population of about 76,192 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| SG4 9UB | 51.953033 | -0.266857 | 519202 | 229701 | TL192297 | No |
| SG4 9UD | 51.953033 | -0.266857 | 519202 | 229701 | TL192297 | No |
| SG4 9UE | 51.953469 | -0.264716 | 519348 | 229753 | TL193297 | No |
| SG4 9UH | 51.953033 | -0.266857 | 519202 | 229701 | TL192297 | No |
| SG4 9UJ | 51.953469 | -0.264716 | 519348 | 229753 | TL193297 | Yes |
| SG4 9UL | 51.953352 | -0.262901 | 519473 | 229743 | TL194297 | Yes |
| SG4 9UN | 51.953654 | -0.264446 | 519366 | 229774 | TL193297 | Yes |
| SG4 9UP | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9UR | 51.950272 | -0.262598 | 519502 | 229401 | TL195294 | No |
| SG4 9UT | 51.950272 | -0.262598 | 519502 | 229401 | TL195294 | No |
| SG4 9UU | 51.950272 | -0.262598 | 519502 | 229401 | TL195294 | No |
| SG4 9UW | 51.950572 | -0.261626 | 519568 | 229436 | TL195294 | Yes |
| SG4 9UX | 51.944192 | -0.266195 | 519271 | 228719 | TL192287 | No |
| SG4 9UY | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9UZ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WA | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WB | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WP | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WR | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WS | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WT | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WU | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WW | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WX | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WY | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9WZ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9XA | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9XB | 51.944192 | -0.266195 | 519271 | 228719 | TL192287 | No |
| SG4 9XD | 51.944192 | -0.266195 | 519271 | 228719 | TL192287 | No |
| SG4 9XE | 51.950251 | -0.261144 | 519602 | 229401 | TL196294 | No |
| SG4 9XF | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9XG | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9XH | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9XJ | 51.944192 | -0.266195 | 519271 | 228719 | TL192287 | No |
| SG4 9XL | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9XN | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9XP | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9XR | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9XS | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9XT | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9XU | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9XW | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9XX | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9XY | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9XZ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9YH | 51.946391 | -0.276906 | 518529 | 228946 | TL185289 | Yes |
| SG4 9YJ | 51.942881 | -0.268166 | 519139 | 228570 | TL191285 | Yes |
| SG4 9YP | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9YR | 51.944228 | -0.266165 | 519273 | 228723 | TL192287 | No |
| SG4 9YS | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9YX | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9ZG | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9ZJ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9ZN | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9ZQ | 51.944272 | -0.266701 | 519236 | 228727 | TL192287 | No |
| SG4 9ZR | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9ZU | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG4 9ZX | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1AA | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1AB | 51.946933 | -0.276463 | 518558 | 229007 | TL185290 | Yes |
| SG5 1AD | 51.947568 | -0.276846 | 518530 | 229077 | TL185290 | Yes |
| SG5 1AE | 51.946387 | -0.278478 | 518421 | 228943 | TL184289 | Yes |
| SG5 1AF | 51.946728 | -0.278421 | 518424 | 228981 | TL184289 | Yes |
| SG5 1AG | 51.964313 | -0.279375 | 518312 | 230935 | TL183309 | Yes |
| SG5 1AH | 51.946457 | -0.27897 | 518387 | 228950 | TL183289 | Yes |
| SG5 1AJ | 51.946014 | -0.278769 | 518402 | 228901 | TL184289 | No |
| SG5 1AL | 51.948689 | -0.277211 | 518502 | 229201 | TL185292 | No |
| SG5 1AN | 51.948689 | -0.277211 | 518502 | 229201 | TL185292 | No |
| SG5 1AP | 51.947305 | -0.279767 | 518330 | 229043 | TL183290 | Yes |
| SG5 1AQ | 51.946063 | -0.278461 | 518423 | 228907 | TL184289 | No |
| SG5 1AR | 51.947611 | -0.280395 | 518286 | 229076 | TL182290 | Yes |
| SG5 1AS | 51.949094 | -0.276628 | 518541 | 229247 | TL185292 | No |
| SG5 1AT | 51.948405 | -0.278124 | 518440 | 229168 | TL184291 | Yes |
| SG5 1AU | 51.947569 | -0.281226 | 518229 | 229070 | TL182290 | Yes |
| SG5 1AW | 51.948689 | -0.277211 | 518502 | 229201 | TL185292 | No |
| SG5 1AX | 51.948077 | -0.278413 | 518421 | 229131 | TL184291 | No |
| SG5 1AY | 51.947811 | -0.278699 | 518402 | 229101 | TL184291 | No |
| SG5 1AZ | 51.952731 | -0.269575 | 519016 | 229663 | TL190296 | Yes |
| SG5 1BA | 51.946035 | -0.280223 | 518302 | 228901 | TL183289 | No |
| SG5 1BB | 51.946704 | -0.27928 | 518365 | 228977 | TL183289 | Yes |
| SG5 1BD | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1BE | 51.946561 | -0.2793 | 518364 | 228961 | TL183289 | No |
| SG5 1BF | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1BG | 51.946655 | -0.279602 | 518343 | 228971 | TL183289 | Yes |
| SG5 1BH | 51.948058 | -0.278952 | 518384 | 229128 | TL183291 | Yes |
| SG5 1BJ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1BL | 51.947811 | -0.278699 | 518402 | 229101 | TL184291 | No |
| SG5 1BN | 51.948403 | -0.278619 | 518406 | 229167 | TL184291 | No |
| SG5 1BP | 51.948689 | -0.277211 | 518502 | 229201 | TL185292 | No |
| SG5 1BQ | 51.947228 | -0.279435 | 518353 | 229035 | TL183290 | Yes |
| SG5 1BS | 51.94972 | -0.2764 | 518555 | 229317 | TL185293 | Yes |
| SG5 1BT | 51.949604 | -0.27588 | 518591 | 229305 | TL185293 | Yes |
| SG5 1BU | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1BW | 51.947811 | -0.278699 | 518402 | 229101 | TL184291 | No |
| SG5 1BX | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1BY | 51.949319 | -0.274829 | 518664 | 229275 | TL186292 | Yes |
| SG5 1BZ | 51.949281 | -0.274714 | 518672 | 229271 | TL186292 | No |
| SG5 1DA | 51.954014 | -0.27184 | 518857 | 229802 | TL188298 | Yes |
| SG5 1DB | 51.949127 | -0.275215 | 518638 | 229253 | TL186292 | Yes |
| SG5 1DD | 51.951869 | -0.276987 | 518509 | 229555 | TL185295 | No |
| SG5 1DE | 51.949281 | -0.275893 | 518591 | 229269 | TL185292 | No |
| SG5 1DF | 51.948689 | -0.277211 | 518502 | 229201 | TL185292 | No |
| SG5 1DG | 51.949469 | -0.276497 | 518549 | 229289 | TL185292 | Yes |
| SG5 1DH | 51.954918 | -0.275851 | 518579 | 229896 | TL185298 | No |
| SG5 1DJ | 51.948699 | -0.275479 | 518621 | 229205 | TL186292 | Yes |
| SG5 1DL | 51.947443 | -0.278103 | 518444 | 229061 | TL184290 | Yes |
| SG5 1DN | 51.947258 | -0.277746 | 518469 | 229041 | TL184290 | Yes |
| SG5 1DP | 51.954919 | -0.275865 | 518578 | 229896 | TL185298 | No |
| SG5 1DQ | 51.948645 | -0.275466 | 518622 | 229199 | TL186291 | No |
| SG5 1DR | 51.947673 | -0.278487 | 518417 | 229086 | TL184290 | Yes |
| SG5 1DS | 51.94714 | -0.278318 | 518430 | 229027 | TL184290 | Yes |
| SG5 1DT | 51.94714 | -0.278914 | 518389 | 229026 | TL183290 | Yes |
| SG5 1DU | 51.94711 | -0.278741 | 518401 | 229023 | TL184290 | Yes |
| SG5 1DW | 51.947553 | -0.277676 | 518473 | 229074 | TL184290 | Yes |
| SG5 1DX | 51.950789 | -0.276359 | 518555 | 229436 | TL185294 | Yes |
| SG5 1DY | 51.947486 | -0.279221 | 518367 | 229064 | TL183290 | Yes |
| SG5 1DZ | 51.946934 | -0.280188 | 518302 | 229001 | TL183290 | No |
| SG5 1EA | 51.946912 | -0.278734 | 518402 | 229001 | TL184290 | No |
| SG5 1EB | 51.94746 | -0.279295 | 518362 | 229061 | TL183290 | No |
| SG5 1ED | 51.947863 | -0.279163 | 518370 | 229106 | TL183291 | Yes |
| SG5 1EE | 51.947985 | -0.279522 | 518345 | 229119 | TL183291 | Yes |
| SG5 1EF | 51.949463 | -0.276672 | 518537 | 229288 | TL185292 | No |
| SG5 1EG | 51.948147 | -0.280127 | 518303 | 229136 | TL183291 | Yes |
| SG5 1EH | 51.948834 | -0.280421 | 518281 | 229212 | TL182292 | Yes |
| SG5 1EJ | 51.947831 | -0.280663 | 518267 | 229100 | TL182290 | Yes |
| SG5 1EL | 51.948731 | -0.280119 | 518302 | 229201 | TL183292 | No |
| SG5 1EN | 51.949329 | -0.276095 | 518577 | 229274 | TL185292 | Yes |
| SG5 1EP | 51.94867 | -0.281504 | 518207 | 229192 | TL182291 | Yes |
| SG5 1EQ | 51.948731 | -0.280119 | 518302 | 229201 | TL183292 | No |
| SG5 1ER | 51.94871 | -0.278665 | 518402 | 229201 | TL184292 | No |
| SG5 1ES | 51.948689 | -0.277211 | 518502 | 229201 | TL185292 | No |
| SG5 1ET | 51.953276 | -0.276685 | 518526 | 229712 | TL185297 | Yes |
| SG5 1EU | 51.948821 | -0.275852 | 518595 | 229218 | TL185292 | Yes |
| SG5 1EW | 51.948261 | -0.281782 | 518189 | 229146 | TL181291 | Yes |
| SG5 1EX | 51.953878 | -0.266868 | 519199 | 229795 | TL191297 | Yes |
| SG5 1EY | 51.96165 | -0.275591 | 518579 | 230645 | TL185306 | Yes |
| SG5 1EZ | 51.94888 | -0.279866 | 518319 | 229218 | TL183292 | Yes |
| SG5 1FA | 51.954919 | -0.275865 | 518578 | 229896 | TL185298 | No |
| SG5 1FB | 51.954919 | -0.275865 | 518578 | 229896 | TL185298 | No |
| SG5 1FD | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FE | 51.954918 | -0.275851 | 518579 | 229896 | TL185298 | No |
| SG5 1FF | 51.954918 | -0.275851 | 518579 | 229896 | TL185298 | No |
| SG5 1FG | 51.954918 | -0.275851 | 518579 | 229896 | TL185298 | No |
| SG5 1FH | 51.954918 | -0.275851 | 518579 | 229896 | TL185298 | No |
| SG5 1FJ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FL | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FN | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FP | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FQ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FR | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FS | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FT | 51.954918 | -0.275851 | 518579 | 229896 | TL185298 | No |
| SG5 1FU | 51.952931 | -0.275825 | 518586 | 229675 | TL185296 | Yes |
| SG5 1FW | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1FX | 51.954918 | -0.275851 | 518579 | 229896 | TL185298 | No |
| SG5 1GB | 51.951618 | -0.277083 | 518503 | 229527 | TL185295 | Yes |
| SG5 1GE | 51.963674 | -0.27627 | 518527 | 230869 | TL185308 | Yes |
| SG5 1GF | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1GG | 51.954918 | -0.275851 | 518579 | 229896 | TL185298 | No |
| SG5 1GH | 51.947854 | -0.281608 | 518202 | 229101 | TL182291 | No |
| SG5 1GJ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1GL | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1GN | 51.9491 | -0.280731 | 518259 | 229241 | TL182292 | No |
| SG5 1GQ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1GT | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1GU | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1GW | 51.954213 | -0.271905 | 518852 | 229824 | TL188298 | Yes |
| SG5 1HA | 51.952359 | -0.280984 | 518233 | 229603 | TL182296 | Yes |
| SG5 1HB | 51.950802 | -0.280331 | 518282 | 229431 | TL182294 | Yes |
| SG5 1HD | 51.950382 | -0.279867 | 518315 | 229385 | TL183293 | Yes |
| SG5 1HE | 51.954919 | -0.275865 | 518578 | 229896 | TL185298 | No |
| SG5 1HF | 51.950473 | -0.283006 | 518099 | 229390 | TL180293 | Yes |
| SG5 1HG | 51.950571 | -0.282959 | 518102 | 229401 | TL181294 | No |
| SG5 1HH | 51.95017 | -0.28197 | 518171 | 229358 | TL181293 | No |
| SG5 1HJ | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1HL | 51.949779 | -0.281039 | 518236 | 229316 | TL182293 | No |
| SG5 1HP | 51.948513 | -0.277523 | 518481 | 229181 | TL184291 | Yes |
| SG5 1HR | 51.948196 | -0.277986 | 518450 | 229145 | TL184291 | Yes |
| SG5 1HS | 51.94894 | -0.278423 | 518418 | 229227 | TL184292 | Yes |
| SG5 1HT | 51.947811 | -0.278699 | 518402 | 229101 | TL184291 | No |
| SG5 1HU | 51.948405 | -0.278124 | 518440 | 229168 | TL184291 | No |
| SG5 1HW | 51.948731 | -0.280119 | 518302 | 229201 | TL183292 | No |
| SG5 1HX | 51.948982 | -0.279455 | 518347 | 229230 | TL183292 | Yes |
| SG5 1HY | 51.948988 | -0.279847 | 518320 | 229230 | TL183292 | No |
| SG5 1HZ | 51.948731 | -0.280119 | 518302 | 229201 | TL183292 | No |
| SG5 1JA | 51.950342 | -0.278355 | 518419 | 229383 | TL184293 | Yes |
| SG5 1JB | 51.951162 | -0.278483 | 518408 | 229474 | TL184294 | Yes |
| SG5 1JD | 51.949784 | -0.278944 | 518380 | 229320 | TL183293 | Yes |
| SG5 1JE | 51.949156 | -0.279012 | 518377 | 229250 | TL183292 | Yes |
| SG5 1JF | 51.95086 | -0.282453 | 518136 | 229434 | TL181294 | No |
| SG5 1JG | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1JH | 51.94871 | -0.278665 | 518402 | 229201 | TL184292 | No |
| SG5 1JJ | 51.955211 | -0.273118 | 518766 | 229933 | TL187299 | Yes |
| SG5 1JL | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1JN | 51.949849 | -0.279727 | 518326 | 229326 | TL183293 | Yes |
| SG5 1JP | 51.949587 | -0.277176 | 518502 | 229301 | TL185293 | No |
| SG5 1JQ | 51.949356 | -0.277942 | 518450 | 229274 | TL184292 | Yes |
| SG5 1JR | 51.949143 | -0.276335 | 518561 | 229253 | TL185292 | No |
| SG5 1JS | 51.950287 | -0.277062 | 518508 | 229379 | TL185293 | No |
| SG5 1JT | 51.951385 | -0.277107 | 518502 | 229501 | TL185295 | No |