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? |
|---|---|---|---|---|---|---|
| SG9 0DL | 51.972853 | 0.038491 | 540122 | 232449 | TL401324 | Yes |
| SG9 0DN | 51.970375 | 0.034156 | 539832 | 232165 | TL398321 | Yes |
| SG9 0DP | 51.969799 | -0.028778 | 535511 | 231982 | TL355319 | Yes |
| SG9 0DQ | 51.964588 | -0.011363 | 536723 | 231435 | TL367314 | Yes |
| SG9 0DR | 51.964044 | 0.010084 | 538198 | 231415 | TL381314 | No |
| SG9 0DS | 51.993034 | -0.081549 | 531818 | 234469 | TL318344 | Yes |
| SG9 0DT | 51.930081 | 0.088043 | 543662 | 227789 | TL436277 | Yes |
| SG9 0DU | 51.944894 | 0.020925 | 539002 | 229306 | TL390293 | Yes |
| SG9 0DW | 51.959125 | 0.027388 | 539402 | 230901 | TL394309 | No |
| SG9 0DX | 51.957927 | 0.025427 | 539271 | 230764 | TL392307 | Yes |
| SG9 0DY | 51.94954 | 0.021571 | 539032 | 229824 | TL390298 | Yes |
| SG9 0DZ | 51.947629 | 0.020845 | 538988 | 229610 | TL389296 | Yes |
| SG9 0EA | 51.947328 | 0.021617 | 539042 | 229578 | TL390295 | Yes |
| SG9 0EB | 51.948051 | 0.021358 | 539022 | 229658 | TL390296 | Yes |
| SG9 0ED | 51.93573 | 0.034523 | 539965 | 228313 | TL399283 | Yes |
| SG9 0EE | 51.944104 | 0.02185 | 539068 | 229220 | TL390292 | Yes |
| SG9 0EF | 51.942896 | 0.022043 | 539085 | 229086 | TL390290 | Yes |
| SG9 0EG | 51.946104 | 0.021111 | 539011 | 229441 | TL390294 | Yes |
| SG9 0EH | 51.934336 | 0.014661 | 538604 | 228120 | TL386281 | Yes |
| SG9 0EJ | 51.96683 | -0.000419 | 537468 | 231705 | TL374317 | No |
| SG9 0EL | 51.967133 | -0.000784 | 537442 | 231738 | TL374317 | Yes |
| SG9 0EN | 51.964507 | -0.004453 | 537198 | 231439 | TL371314 | Yes |
| SG9 0EP | 51.964044 | 0.010084 | 538198 | 231415 | TL381314 | Yes |
| SG9 0EQ | 51.945393 | 0.021181 | 539018 | 229362 | TL390293 | Yes |
| SG9 0ER | 51.974144 | 0.014161 | 538447 | 232546 | TL384325 | Yes |
| SG9 0ES | 51.976447 | 0.019899 | 538834 | 232813 | TL388328 | Yes |
| SG9 0ET | 51.975952 | 0.020969 | 538909 | 232760 | TL389327 | Yes |
| SG9 0EU | 51.969785 | 0.022439 | 539029 | 232077 | TL390320 | Yes |
| SG9 0EW | 51.964544 | -0.002937 | 537302 | 231446 | TL373314 | Yes |
| SG9 0EX | 51.962825 | -0.002839 | 537314 | 231255 | TL373312 | Yes |
| SG9 0EY | 51.962127 | -0.002535 | 537337 | 231178 | TL373311 | Yes |
| SG9 0EZ | 51.980204 | 0.018976 | 538759 | 233229 | TL387332 | Yes |
| SG9 0FA | 51.954425 | 0.023042 | 539118 | 230370 | TL391303 | Yes |
| SG9 0FB | 51.946817 | 0.002561 | 537734 | 229485 | TL377294 | Yes |
| SG9 0FD | 51.981839 | 0.035753 | 539906 | 233443 | TL399334 | Yes |
| SG9 0HA | 51.956338 | 0.084023 | 543302 | 230701 | TL433307 | No |
| SG9 0HE | 51.956761 | 0.08448 | 543332 | 230749 | TL433307 | Yes |
| SG9 0HF | 51.956901 | 0.086247 | 543453 | 230768 | TL434307 | Yes |
| SG9 0HG | 51.956012 | 0.087195 | 543521 | 230671 | TL435306 | Yes |
| SG9 0HH | 51.952317 | 0.098229 | 544291 | 230282 | TL442302 | Yes |
| SG9 0HJ | 51.953625 | 0.103588 | 544655 | 230438 | TL446304 | Yes |
| SG9 0HL | 51.953614 | 0.108724 | 545008 | 230447 | TL450304 | Yes |
| SG9 0HN | 51.954961 | 0.087598 | 543552 | 230555 | TL435305 | Yes |
| SG9 0HP | 51.950242 | 0.095586 | 544116 | 230046 | TL441300 | Yes |
| SG9 0HQ | 51.955628 | 0.087032 | 543511 | 230628 | TL435306 | Yes |
| SG9 0HR | 51.955671 | 0.088126 | 543586 | 230635 | TL435306 | Yes |
| SG9 0HT | 51.943442 | 0.105294 | 544805 | 229309 | TL448293 | Yes |
| SG9 0HU | 51.942941 | 0.111643 | 545243 | 229266 | TL452292 | Yes |
| SG9 0HW | 51.954214 | 0.08717 | 543525 | 230471 | TL435304 | Yes |
| SG9 0HX | 51.941144 | 0.111093 | 545211 | 229065 | TL452290 | Yes |
| SG9 0HY | 51.940392 | 0.111378 | 545233 | 228982 | TL452289 | Yes |
| SG9 0HZ | 51.941602 | 0.112613 | 545314 | 229119 | TL453291 | Yes |
| SG9 0JA | 51.9406 | 0.115316 | 545503 | 229013 | TL455290 | Yes |
| SG9 0JB | 51.937499 | 0.114734 | 545473 | 228667 | TL454286 | Yes |
| SG9 0JD | 51.938362 | 0.105725 | 544851 | 228745 | TL448287 | Yes |
| SG9 0JH | 51.932859 | 0.082498 | 543272 | 228087 | TL432280 | Yes |
| SG9 0JJ | 51.936815 | 0.083031 | 543296 | 228528 | TL432285 | Yes |
| SG9 0JL | 51.924868 | 0.082797 | 543318 | 227199 | TL433271 | Yes |
| SG9 0JN | 51.924328 | 0.076228 | 542868 | 227126 | TL428271 | Yes |
| SG9 0JP | 51.926463 | 0.058568 | 541647 | 227329 | TL416273 | Yes |
| SG9 0JT | 51.930556 | 0.104778 | 544811 | 227875 | TL448278 | Yes |
| SG9 0JU | 51.929213 | 0.110984 | 545242 | 227738 | TL452277 | Yes |
| SG9 0JW | 51.9254 | 0.067405 | 542258 | 227228 | TL422272 | No |
| SG9 0JX | 51.93472 | 0.103213 | 544690 | 228335 | TL446283 | Yes |
| SG9 0JY | 51.932768 | 0.101769 | 544597 | 228115 | TL445281 | Yes |
| SG9 0JZ | 51.930221 | 0.097853 | 544336 | 227824 | TL443278 | Yes |
| SG9 0LA | 51.934105 | 0.069988 | 542408 | 228201 | TL424282 | Yes |
| SG9 0LB | 51.932321 | 0.076262 | 542845 | 228015 | TL428280 | Yes |
| SG9 0LD | 51.931503 | 0.079846 | 543094 | 227931 | TL430279 | Yes |
| SG9 0LE | 51.93023 | 0.085722 | 543502 | 227801 | TL435278 | No |
| SG9 0LF | 51.931523 | 0.088328 | 543677 | 227950 | TL436279 | Yes |
| SG9 0LG | 51.92972 | 0.087604 | 543633 | 227748 | TL436277 | Yes |
| SG9 0LH | 51.931134 | 0.080877 | 543166 | 227892 | TL431278 | Yes |
| SG9 0LJ | 51.931371 | 0.083739 | 543362 | 227924 | TL433279 | Yes |
| SG9 0LL | 51.928876 | 0.087041 | 543597 | 227653 | TL435276 | Yes |
| SG9 0LN | 51.930452 | 0.080278 | 543127 | 227815 | TL431278 | Yes |
| SG9 0LP | 51.92744 | 0.099498 | 544458 | 227518 | TL444275 | Yes |
| SG9 0LQ | 51.928774 | 0.087705 | 543643 | 227643 | TL436276 | Yes |
| SG9 0LR | 51.920262 | 0.106637 | 544972 | 226734 | TL449267 | Yes |
| SG9 0LS | 51.943467 | 0.033797 | 539891 | 229172 | TL398291 | Yes |
| SG9 0LT | 51.941564 | 0.041931 | 540456 | 228976 | TL404289 | Yes |
| SG9 0LU | 51.941624 | 0.037918 | 540180 | 228975 | TL401289 | Yes |
| SG9 0LW | 51.930737 | 0.080451 | 543138 | 227847 | TL431278 | Yes |
| SG9 0LX | 51.941648 | 0.039112 | 540262 | 228980 | TL402289 | Yes |
| SG9 0LY | 51.941636 | 0.039286 | 540274 | 228979 | TL402289 | Yes |
| SG9 0LZ | 51.941152 | 0.042305 | 540483 | 228931 | TL404289 | Yes |
| SG9 0NA | 51.941939 | 0.039489 | 540287 | 229013 | TL402290 | Yes |
| SG9 0NB | 51.944548 | 0.038371 | 540202 | 229301 | TL402293 | No |
| SG9 0ND | 51.940954 | 0.038208 | 540202 | 228901 | TL402289 | No |
| SG9 0NG | 51.949017 | 0.038893 | 540224 | 229799 | TL402297 | Yes |
| SG9 0NH | 51.947105 | 0.036609 | 540073 | 229582 | TL400295 | Yes |
| SG9 0NJ | 51.946148 | 0.044642 | 540628 | 229491 | TL406294 | Yes |
| SG9 0NL | 51.949864 | 0.038772 | 540213 | 229893 | TL402298 | Yes |
| SG9 0NN | 51.949258 | 0.03953 | 540267 | 229827 | TL402298 | Yes |
| SG9 0NP | 51.951128 | 0.037432 | 540117 | 230031 | TL401300 | Yes |
| SG9 0NQ | 51.94917 | 0.037824 | 540150 | 229814 | TL401298 | Yes |
| SG9 0NR | 51.950038 | 0.035476 | 539986 | 229906 | TL399299 | Yes |
| SG9 0NS | 51.950937 | 0.038122 | 540165 | 230011 | TL401300 | Yes |
| SG9 0NT | 51.951399 | 0.0405 | 540327 | 230067 | TL403300 | Yes |
| SG9 0NU | 51.951763 | 0.046498 | 540738 | 230119 | TL407301 | Yes |
| SG9 0NW | 51.948701 | 0.041062 | 540374 | 229768 | TL403297 | Yes |
| SG9 0NX | 51.951082 | 0.03858 | 540196 | 230028 | TL401300 | Yes |
| SG9 0NY | 51.952862 | 0.037525 | 540118 | 230224 | TL401302 | Yes |
| SG9 0NZ | 51.952837 | 0.042108 | 540433 | 230230 | TL404302 | Yes |
| SG9 0PA | 51.961306 | 0.035958 | 539984 | 231160 | TL399311 | Yes |
| SG9 0PB | 51.959815 | 0.055016 | 541298 | 231031 | TL412310 | Yes |
| SG9 0PD | 51.970846 | -0.027407 | 535602 | 232101 | TL356321 | No |
| SG9 0PF | 51.970409 | -0.027586 | 535591 | 232052 | TL355320 | Yes |
| SG9 0PG | 51.969685 | -0.027851 | 535575 | 231971 | TL355319 | Yes |
| SG9 0PH | 51.970409 | -0.028154 | 535552 | 232051 | TL355320 | Yes |
| SG9 0PJ | 51.971102 | -0.028677 | 535514 | 232127 | TL355321 | Yes |
| SG9 0PL | 51.982735 | -0.027438 | 535564 | 233423 | TL355334 | Yes |
| SG9 0PN | 51.984285 | -0.027632 | 535546 | 233595 | TL355335 | Yes |
| SG9 0PP | 51.983821 | -0.027317 | 535569 | 233544 | TL355335 | Yes |
| SG9 0PQ | 51.971873 | -0.027493 | 535593 | 232215 | TL355322 | Yes |
| SG9 0PR | 51.986805 | -0.02672 | 535601 | 233877 | TL356338 | Yes |
| SG9 0PS | 51.987355 | -0.026259 | 535631 | 233939 | TL356339 | Yes |
| SG9 0PT | 51.987089 | -0.023285 | 535836 | 233915 | TL358339 | Yes |
| SG9 0PU | 51.985062 | -0.024656 | 535748 | 233687 | TL357336 | Yes |
| SG9 0PW | 51.983557 | -0.028246 | 535506 | 233513 | TL355335 | Yes |
| SG9 0PX | 51.985562 | -0.027124 | 535577 | 233738 | TL355337 | Yes |
| SG9 0PY | 51.985839 | -0.026515 | 535618 | 233770 | TL356337 | Yes |
| SG9 0PZ | 51.984055 | -0.010807 | 536702 | 233601 | TL367336 | No |
| SG9 0QA | 51.981776 | -0.040601 | 534663 | 233292 | TL346332 | Yes |
| SG9 0QB | 51.987664 | -0.028051 | 535507 | 233970 | TL355339 | Yes |
| SG9 0QD | 51.957373 | -0.107161 | 530163 | 230457 | TL301304 | Yes |
| SG9 0QE | 51.987059 | -0.09066 | 531210 | 233788 | TL312337 | Yes |
| SG9 0QF | 51.985374 | -0.088226 | 531382 | 233605 | TL313336 | Yes |
| SG9 0QG | 51.987656 | -0.08593 | 531533 | 233863 | TL315338 | Yes |
| SG9 0QH | 51.994144 | -0.110678 | 529815 | 234540 | TL298345 | Yes |
| SG9 0QJ | 51.986595 | -0.083689 | 531690 | 233749 | TL316337 | Yes |
| SG9 0QL | 51.987787 | -0.080725 | 531890 | 233887 | TL318338 | Yes |
| SG9 0QN | 51.989855 | -0.081248 | 531848 | 234116 | TL318341 | Yes |
| SG9 0QP | 51.991215 | -0.080826 | 531873 | 234268 | TL318342 | Yes |
| SG9 0QQ | 51.987564 | -0.08139 | 531845 | 233861 | TL318338 | Yes |
| SG9 0QR | 51.992176 | -0.07911 | 531988 | 234378 | TL319343 | Yes |
| SG9 0QS | 51.991935 | -0.078115 | 532057 | 234353 | TL320343 | Yes |
| SG9 0QT | 51.992194 | -0.081279 | 531839 | 234376 | TL318343 | Yes |
| SG9 0QU | 51.993024 | -0.079802 | 531938 | 234471 | TL319344 | Yes |
| SG9 0QW | 51.989997 | -0.081126 | 531856 | 234132 | TL318341 | No |
| SG9 0QX | 51.993141 | -0.075995 | 532199 | 234491 | TL321344 | Yes |
| SG9 0QY | 51.993102 | -0.075254 | 532250 | 234488 | TL322344 | Yes |
| SG9 0QZ | 52.001567 | -0.069413 | 532626 | 235440 | TL326354 | Yes |
| SG9 0RA | 51.994887 | -0.077158 | 532114 | 234683 | TL321346 | Yes |
| SG9 0RB | 51.999111 | -0.095828 | 530820 | 235119 | TL308351 | Yes |
| SG9 0RE | 51.991404 | -0.064898 | 532966 | 234318 | TL329343 | Yes |
| SG9 0RF | 51.990563 | -0.073382 | 532386 | 234209 | TL323342 | Yes |
| SG9 0RG | 51.985698 | -0.066761 | 532855 | 233680 | TL328336 | Yes |
| SG9 0RH | 52.000524 | -0.084259 | 531610 | 235297 | TL316352 | Yes |
| SG9 0RJ | 52.006711 | -0.10486 | 530178 | 235948 | TL301359 | Yes |
| SG9 0RL | 51.983574 | -0.071046 | 532567 | 233436 | TL325334 | Yes |
| SG9 0RN | 51.978145 | -0.063533 | 533099 | 232846 | TL330328 | Yes |
| SG9 0RP | 51.975308 | -0.062126 | 533204 | 232533 | TL332325 | Yes |
| SG9 0RQ | 51.983603 | -0.065161 | 532971 | 233450 | TL329334 | Yes |
| SG9 0RR | 51.975369 | -0.059852 | 533360 | 232544 | TL333325 | Yes |
| SG9 0RS | 51.971386 | -0.059311 | 533409 | 232102 | TL334321 | Yes |
| SG9 0RT | 51.969687 | -0.050096 | 534047 | 231930 | TL340319 | Yes |
| SG9 0RU | 51.97688 | -0.047891 | 534177 | 232734 | TL341327 | Yes |
| SG9 0RW | 51.976892 | -0.062786 | 533154 | 232708 | TL331327 | Yes |
| SG9 0RX | 51.966864 | -0.037699 | 534907 | 231639 | TL349316 | Yes |
| SG9 0RY | 51.96273 | -0.030282 | 535429 | 231193 | TL354311 | Yes |
| SG9 0SA | 51.964309 | -0.003937 | 537234 | 231418 | TL372314 | Yes |
| SG9 0SD | 51.966533 | -0.093105 | 531102 | 231501 | TL311315 | No |
| SG9 0SE | 51.967573 | -0.101795 | 530502 | 231601 | TL305316 | No |
| SG9 0SF | 51.967503 | -0.097431 | 530802 | 231601 | TL308316 | No |
| SG9 0SG | 51.967984 | -0.101632 | 530512 | 231647 | TL305316 | Yes |
| SG9 0SH | 51.967069 | -0.102341 | 530466 | 231544 | TL304315 | Yes |
| SG9 0SJ | 51.966533 | -0.100878 | 530568 | 231487 | TL305314 | Yes |
| SG9 0SL | 51.966247 | -0.100992 | 530561 | 231455 | TL305314 | Yes |
| SG9 0SN | 51.967563 | -0.099495 | 530660 | 231604 | TL306316 | Yes |
| SG9 0SP | 51.965643 | -0.093084 | 531106 | 231402 | TL311314 | Yes |
| SG9 0SQ | 51.967814 | -0.101115 | 530548 | 231629 | TL305316 | Yes |
| SG9 0SR | 51.968006 | -0.091877 | 531182 | 231667 | TL311316 | Yes |
| SG9 0SS | 51.975479 | -0.07534 | 532296 | 232528 | TL322325 | Yes |
| SG9 0ST | 51.96786 | -0.079539 | 532030 | 231673 | TL320316 | Yes |
| SG9 0SU | 51.965216 | -0.105636 | 530245 | 231332 | TL302313 | Yes |
| SG9 0SW | 51.968213 | -0.097459 | 530798 | 231680 | TL307316 | Yes |
| SG9 0SX | 51.968863 | -0.092613 | 531129 | 231761 | TL311317 | Yes |
| SG9 0SY | 51.968338 | -0.09182 | 531185 | 231704 | TL311317 | Yes |
| SG9 0SZ | 51.968578 | -0.103922 | 530353 | 231709 | TL303317 | Yes |
| SG9 0TA | 51.969227 | -0.10567 | 530231 | 231778 | TL302317 | Yes |
| SG9 0TB | 51.972868 | -0.113437 | 529687 | 232169 | TL296321 | Yes |
| SG9 0TD | 51.975791 | -0.097837 | 530750 | 232522 | TL307325 | Yes |
| SG9 0TE | 51.978095 | -0.089075 | 531345 | 232794 | TL313327 | Yes |
| SG9 0TF | 51.978719 | -0.082671 | 531783 | 232875 | TL317328 | Yes |
| SG9 0TG | 51.979271 | -0.109047 | 529970 | 232889 | TL299328 | Yes |
| SG9 0TH | 51.981161 | -0.108531 | 530000 | 233100 | TL299331 | Yes |
| SG9 0TJ | 51.97687 | 0.042299 | 540371 | 232903 | TL403329 | Yes |
| SG9 0TL | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG9 0TN | 51.964044 | 0.010084 | 538198 | 231415 | TL381314 | No |
| SG9 0TP | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | Yes |
| SG9 0TQ | 51.980163 | -0.108544 | 530002 | 232989 | TL300329 | Yes |
| SG9 0TR | 51.931646 | 0.075329 | 542783 | 227938 | TL427279 | Yes |
| SG9 0TS | 51.931183 | 0.087221 | 543602 | 227910 | TL436279 | Yes |
| SG9 0TW | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG9 0UH | 51.964775 | -0.003276 | 537278 | 231471 | TL372314 | Yes |
| SG9 0WS | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG9 0WT | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG9 0WU | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |
| SG9 0WW | 51.805805 | -0.022785 | 536418 | 213756 | TL364137 | No |