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 | 51.953025 | -0.266881 | 519200 | 229700 | TL192296 | No |
| SG4 9UD | 51.953025 | -0.266881 | 519200 | 229700 | TL192296 | No |
| SG4 9UE | 51.953461 | -0.26474 | 519346 | 229752 | TL193297 | No |
| SG4 9UH | 51.953025 | -0.266881 | 519200 | 229700 | TL192296 | No |
| SG4 9UJ | 51.953461 | -0.26474 | 519346 | 229752 | TL193297 | Yes |
| SG4 9UL | 51.953352 | -0.262901 | 519473 | 229743 | TL194297 | Yes |
| SG4 9UN | 51.953646 | -0.264471 | 519364 | 229773 | TL193297 | Yes |
| SG4 9UP | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9UR | 51.950265 | -0.262622 | 519500 | 229400 | TL195294 | No |
| SG4 9UT | 51.950265 | -0.262622 | 519500 | 229400 | TL195294 | No |
| SG4 9UU | 51.950265 | -0.262622 | 519500 | 229400 | TL195294 | No |
| SG4 9UW | 51.950565 | -0.26165 | 519566 | 229435 | TL195294 | Yes |
| SG4 9UX | 51.944186 | -0.266218 | 519269 | 228718 | TL192287 | No |
| SG4 9UY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9UZ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WA | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WB | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WP | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WS | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WT | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WW | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WX | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9WZ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9XA | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9XB | 51.944186 | -0.266218 | 519269 | 228718 | TL192287 | No |
| SG4 9XD | 51.944186 | -0.266218 | 519269 | 228718 | TL192287 | No |
| SG4 9XE | 51.950243 | -0.261168 | 519600 | 229400 | TL195293 | No |
| SG4 9XF | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9XG | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9XH | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9XJ | 51.944186 | -0.266218 | 519269 | 228718 | TL192287 | No |
| SG4 9XL | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9XN | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9XP | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9XR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9XS | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9XT | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9XU | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9XW | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9XX | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9XY | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9XZ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9YH | 51.946384 | -0.27693 | 518527 | 228945 | TL185289 | Yes |
| SG4 9YJ | 51.942881 | -0.268166 | 519139 | 228570 | TL191285 | Yes |
| SG4 9YP | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9YR | 51.944221 | -0.266188 | 519271 | 228722 | TL192287 | No |
| SG4 9YS | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9YX | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9ZG | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9ZJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9ZN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9ZQ | 51.944265 | -0.266724 | 519234 | 228726 | TL192287 | No |
| SG4 9ZR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9ZU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG4 9ZX | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1AA | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1AB | 51.946926 | -0.276487 | 518556 | 229006 | TL185290 | Yes |
| SG5 1AD | 51.947568 | -0.276846 | 518530 | 229077 | TL185290 | Yes |
| SG5 1AE | 51.946387 | -0.278478 | 518421 | 228943 | TL184289 | Yes |
| SG5 1AF | 51.946721 | -0.278445 | 518422 | 228980 | TL184289 | Yes |
| SG5 1AG | 51.964313 | -0.279375 | 518312 | 230935 | TL183309 | Yes |
| SG5 1AH | 51.946457 | -0.27897 | 518387 | 228950 | TL183289 | Yes |
| SG5 1AJ | 51.946007 | -0.278792 | 518400 | 228900 | TL184289 | No |
| SG5 1AL | 51.948681 | -0.277235 | 518500 | 229200 | TL184291 | No |
| SG5 1AN | 51.948681 | -0.277235 | 518500 | 229200 | TL184291 | No |
| SG5 1AP | 51.947298 | -0.27979 | 518328 | 229042 | TL183290 | Yes |
| SG5 1AQ | 51.946056 | -0.278485 | 518421 | 228906 | TL184289 | No |
| SG5 1AR | 51.947611 | -0.280395 | 518286 | 229076 | TL182290 | Yes |
| SG5 1AS | 51.949086 | -0.276652 | 518539 | 229246 | TL185292 | No |
| SG5 1AT | 51.948405 | -0.278124 | 518440 | 229168 | TL184291 | Yes |
| SG5 1AU | 51.947569 | -0.281226 | 518229 | 229070 | TL182290 | Yes |
| SG5 1AW | 51.948681 | -0.277235 | 518500 | 229200 | TL184291 | No |
| SG5 1AX | 51.948069 | -0.278437 | 518419 | 229130 | TL184291 | No |
| SG5 1AY | 51.947804 | -0.278723 | 518400 | 229100 | TL184291 | No |
| SG5 1AZ | 51.952724 | -0.2696 | 519014 | 229662 | TL190296 | Yes |
| SG5 1BA | 51.946028 | -0.280246 | 518300 | 228900 | TL183289 | No |
| SG5 1BB | 51.946554 | -0.279324 | 518362 | 228960 | TL183289 | Yes |
| SG5 1BD | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1BE | 51.946554 | -0.279324 | 518362 | 228960 | TL183289 | No |
| SG5 1BF | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1BG | 51.946648 | -0.279626 | 518341 | 228970 | TL183289 | Yes |
| SG5 1BH | 51.948058 | -0.278952 | 518384 | 229128 | TL183291 | Yes |
| SG5 1BJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1BL | 51.947804 | -0.278723 | 518400 | 229100 | TL184291 | No |
| SG5 1BN | 51.948396 | -0.278642 | 518404 | 229166 | TL184291 | No |
| SG5 1BP | 51.948681 | -0.277235 | 518500 | 229200 | TL184291 | No |
| SG5 1BQ | 51.947221 | -0.279459 | 518351 | 229034 | TL183290 | Yes |
| SG5 1BS | 51.94972 | -0.2764 | 518555 | 229317 | TL185293 | Yes |
| SG5 1BT | 51.949604 | -0.27588 | 518591 | 229305 | TL185293 | Yes |
| SG5 1BU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1BW | 51.947804 | -0.278723 | 518400 | 229100 | TL184291 | No |
| SG5 1BX | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1BY | 51.949312 | -0.274853 | 518662 | 229274 | TL186292 | Yes |
| SG5 1BZ | 51.949274 | -0.274738 | 518670 | 229270 | TL186292 | No |
| SG5 1DA | 51.954007 | -0.271864 | 518855 | 229801 | TL188298 | Yes |
| SG5 1DB | 51.94912 | -0.275239 | 518636 | 229252 | TL186292 | Yes |
| SG5 1DD | 51.951861 | -0.277011 | 518507 | 229554 | TL185295 | No |
| SG5 1DE | 51.949273 | -0.275917 | 518589 | 229268 | TL185292 | No |
| SG5 1DF | 51.948681 | -0.277235 | 518500 | 229200 | TL184291 | No |
| SG5 1DG | 51.949462 | -0.276521 | 518547 | 229288 | TL185292 | Yes |
| SG5 1DH | 51.954911 | -0.275875 | 518577 | 229895 | TL185298 | No |
| SG5 1DJ | 51.948699 | -0.275479 | 518621 | 229205 | TL186292 | Yes |
| SG5 1DL | 51.947436 | -0.278126 | 518442 | 229060 | TL184290 | Yes |
| SG5 1DN | 51.947258 | -0.277746 | 518469 | 229041 | TL184290 | Yes |
| SG5 1DP | 51.954911 | -0.27589 | 518576 | 229895 | TL185298 | No |
| SG5 1DQ | 51.948638 | -0.27549 | 518620 | 229198 | TL186291 | No |
| SG5 1DR | 51.947673 | -0.278486 | 518417 | 229086 | TL184290 | Yes |
| SG5 1DS | 51.947133 | -0.278342 | 518428 | 229026 | TL184290 | Yes |
| SG5 1DT | 51.947133 | -0.278938 | 518387 | 229025 | TL183290 | Yes |
| SG5 1DU | 51.94711 | -0.278741 | 518401 | 229023 | TL184290 | Yes |
| SG5 1DW | 51.947553 | -0.277676 | 518473 | 229074 | TL184290 | Yes |
| SG5 1DX | 51.950782 | -0.276383 | 518553 | 229435 | TL185294 | Yes |
| SG5 1DY | 51.947534 | -0.279452 | 518351 | 229069 | TL183290 | Yes |
| SG5 1DZ | 51.946927 | -0.280212 | 518300 | 229000 | TL182290 | No |
| SG5 1EA | 51.946905 | -0.278758 | 518400 | 229000 | TL183289 | No |
| SG5 1EB | 51.947453 | -0.279319 | 518360 | 229060 | TL183290 | No |
| SG5 1ED | 51.947856 | -0.279187 | 518368 | 229105 | TL183291 | Yes |
| SG5 1EE | 51.947978 | -0.279546 | 518343 | 229118 | TL183291 | Yes |
| SG5 1EF | 51.949456 | -0.276696 | 518535 | 229287 | TL185292 | No |
| SG5 1EG | 51.94814 | -0.280151 | 518301 | 229135 | TL183291 | Yes |
| SG5 1EH | 51.948827 | -0.280445 | 518279 | 229211 | TL182292 | Yes |
| SG5 1EJ | 51.947824 | -0.280687 | 518265 | 229099 | TL182290 | Yes |
| SG5 1EL | 51.948724 | -0.280143 | 518300 | 229200 | TL183292 | No |
| SG5 1EN | 51.949321 | -0.276119 | 518575 | 229273 | TL185292 | Yes |
| SG5 1EP | 51.94867 | -0.281504 | 518207 | 229192 | TL182291 | Yes |
| SG5 1EQ | 51.948724 | -0.280143 | 518300 | 229200 | TL183292 | No |
| SG5 1ER | 51.948703 | -0.278689 | 518400 | 229200 | TL183292 | No |
| SG5 1ES | 51.948681 | -0.277235 | 518500 | 229200 | TL184291 | No |
| SG5 1ET | 51.953268 | -0.27671 | 518524 | 229711 | TL185297 | Yes |
| SG5 1EU | 51.948821 | -0.275852 | 518595 | 229218 | TL185292 | Yes |
| SG5 1EW | 51.948261 | -0.281781 | 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 | 51.954911 | -0.27589 | 518576 | 229895 | TL185298 | No |
| SG5 1FB | 51.954911 | -0.27589 | 518576 | 229895 | TL185298 | No |
| SG5 1FD | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FE | 51.954911 | -0.275875 | 518577 | 229895 | TL185298 | No |
| SG5 1FF | 51.954911 | -0.275875 | 518577 | 229895 | TL185298 | No |
| SG5 1FG | 51.954911 | -0.275875 | 518577 | 229895 | TL185298 | No |
| SG5 1FH | 51.954911 | -0.275875 | 518577 | 229895 | TL185298 | No |
| SG5 1FJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FL | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FN | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FP | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FS | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FT | 51.954911 | -0.275875 | 518577 | 229895 | TL185298 | No |
| SG5 1FU | 51.952931 | -0.275825 | 518586 | 229675 | TL185296 | Yes |
| SG5 1FW | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1FX | 51.954911 | -0.275875 | 518577 | 229895 | TL185298 | No |
| SG5 1GB | 51.951618 | -0.277083 | 518503 | 229527 | TL185295 | Yes |
| SG5 1GE | 51.963674 | -0.27627 | 518527 | 230869 | TL185308 | Yes |
| SG5 1GF | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1GG | 51.954911 | -0.275875 | 518577 | 229895 | TL185298 | No |
| SG5 1GH | 51.947846 | -0.281632 | 518200 | 229100 | TL181290 | No |
| SG5 1GJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1GL | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1GN | 51.949092 | -0.280755 | 518257 | 229240 | TL182292 | No |
| SG5 1GQ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1GT | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1GU | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1GW | 51.954205 | -0.271929 | 518850 | 229823 | TL188298 | Yes |
| SG5 1HA | 51.952359 | -0.280984 | 518233 | 229603 | TL182296 | Yes |
| SG5 1HB | 51.950795 | -0.280355 | 518280 | 229430 | TL182294 | Yes |
| SG5 1HD | 51.950375 | -0.279891 | 518313 | 229384 | TL183293 | Yes |
| SG5 1HE | 51.954911 | -0.27589 | 518576 | 229895 | TL185298 | No |
| SG5 1HF | 51.950465 | -0.283031 | 518097 | 229389 | TL180293 | Yes |
| SG5 1HG | 51.950564 | -0.282983 | 518100 | 229400 | TL181294 | No |
| SG5 1HH | 51.950163 | -0.281994 | 518169 | 229357 | TL181293 | No |
| SG5 1HJ | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1HL | 51.949779 | -0.281039 | 518236 | 229316 | TL182293 | No |
| SG5 1HP | 51.948506 | -0.277547 | 518479 | 229180 | TL184291 | Yes |
| SG5 1HR | 51.948196 | -0.277986 | 518450 | 229145 | TL184291 | Yes |
| SG5 1HS | 51.948933 | -0.278447 | 518416 | 229226 | TL184292 | Yes |
| SG5 1HT | 51.947804 | -0.278723 | 518400 | 229100 | TL184291 | No |
| SG5 1HU | 51.948398 | -0.278148 | 518438 | 229167 | TL184291 | No |
| SG5 1HW | 51.948724 | -0.280143 | 518300 | 229200 | TL183292 | No |
| SG5 1HX | 51.948982 | -0.279455 | 518347 | 229230 | TL183292 | Yes |
| SG5 1HY | 51.948981 | -0.279871 | 518318 | 229229 | TL183292 | No |
| SG5 1HZ | 51.948724 | -0.280143 | 518300 | 229200 | TL183292 | No |
| SG5 1JA | 51.950342 | -0.278355 | 518419 | 229383 | TL184293 | Yes |
| SG5 1JB | 51.951155 | -0.278508 | 518406 | 229473 | TL184294 | Yes |
| SG5 1JD | 51.949784 | -0.278944 | 518380 | 229320 | TL183293 | Yes |
| SG5 1JE | 51.949156 | -0.279011 | 518377 | 229250 | TL183292 | Yes |
| SG5 1JF | 51.950853 | -0.282477 | 518134 | 229433 | TL181294 | No |
| SG5 1JG | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1JH | 51.948703 | -0.278689 | 518400 | 229200 | TL183292 | No |
| SG5 1JJ | 51.955203 | -0.273143 | 518764 | 229932 | TL187299 | Yes |
| SG5 1JL | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1JN | 51.949849 | -0.279727 | 518326 | 229326 | TL183293 | Yes |
| SG5 1JP | 51.94958 | -0.2772 | 518500 | 229300 | TL185293 | No |
| SG5 1JQ | 51.949356 | -0.277942 | 518450 | 229274 | TL184292 | Yes |
| SG5 1JR | 51.949136 | -0.276359 | 518559 | 229252 | TL185292 | No |
| SG5 1JS | 51.95028 | -0.277086 | 518506 | 229378 | TL185293 | No |
| SG5 1JT | 51.951377 | -0.277131 | 518500 | 229500 | TL185294 | No |