There are 260 postcodes in the built up area of London Colney. The area contains approximately 3,274 households with a population of about 8,131 (2011 census)
Active postcode
Postcode no longer in useThis table shows the first postcodes in the built up area, download the CSV file to get all the postcodes.
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| AL1 1DX | 51.73172 | -0.301852 | 517371 | 205032 | TL173050 | Yes |
| AL1 1DZ | 51.731472 | -0.304628 | 517180 | 205000 | TL171049 | Yes |
| AL1 1EA | 51.731814 | -0.306483 | 517051 | 205035 | TL170050 | Yes |
| AL1 1ED | 51.732438 | -0.308617 | 516902 | 205101 | TL169051 | No |
| AL1 1EE | 51.732092 | -0.308283 | 516926 | 205063 | TL169050 | Yes |
| AL1 1EF | 51.730738 | -0.308594 | 516908 | 204912 | TL169049 | No |
| AL1 1EG | 51.730619 | -0.30841 | 516921 | 204899 | TL169048 | Yes |
| AL1 1EQ | 51.731217 | -0.309387 | 516852 | 204964 | TL168049 | Yes |
| AL2 1AB | 51.716797 | -0.282939 | 518716 | 203403 | TL187034 | Yes |
| AL2 1AE | 51.710531 | -0.297188 | 517748 | 202683 | TL177026 | Yes |
| AL2 1AF | 51.712302 | -0.300929 | 517485 | 202874 | TL174028 | Yes |
| AL2 1AG | 51.711796 | -0.300731 | 517500 | 202818 | TL174028 | Yes |
| AL2 1AH | 51.714843 | -0.300009 | 517542 | 203158 | TL175031 | Yes |
| AL2 1AQ | 51.723226 | -0.296509 | 517762 | 204096 | TL177040 | No |
| AL2 1AR | 51.712562 | -0.302121 | 517402 | 202901 | TL174029 | No |
| AL2 1AS | 51.723218 | -0.296524 | 517761 | 204095 | TL177040 | No |
| AL2 1AT | 51.71825 | -0.28633 | 518478 | 203559 | TL184035 | Yes |
| AL2 1AU | 51.718526 | -0.286131 | 518491 | 203590 | TL184035 | Yes |
| AL2 1AX | 51.720717 | -0.289653 | 518242 | 203828 | TL182038 | No |
| AL2 1AY | 51.722279 | -0.289508 | 518248 | 204002 | TL182040 | No |
| AL2 1AZ | 51.720211 | -0.286372 | 518470 | 203777 | TL184037 | Yes |
| AL2 1BD | 51.718424 | -0.287829 | 518374 | 203576 | TL183035 | No |
| AL2 1BE | 51.719552 | -0.287439 | 518398 | 203702 | TL183037 | Yes |
| AL2 1BF | 51.723226 | -0.296509 | 517762 | 204096 | TL177040 | No |
| AL2 1BG | 51.718812 | -0.287308 | 518409 | 203620 | TL184036 | Yes |
| AL2 1BH | 51.71765 | -0.285296 | 518551 | 203494 | TL185034 | Yes |
| AL2 1BJ | 51.719059 | -0.288152 | 518350 | 203646 | TL183036 | Yes |
| AL2 1BL | 51.719017 | -0.286561 | 518460 | 203644 | TL184036 | Yes |
| AL2 1BN | 51.717723 | -0.286002 | 518502 | 203501 | TL185035 | No |
| AL2 1BP | 51.717294 | -0.283702 | 518662 | 203457 | TL186034 | Yes |
| AL2 1BQ | 51.719059 | -0.288152 | 518350 | 203646 | TL183036 | No |
| AL2 1BS | 51.71854 | -0.287144 | 518421 | 203590 | TL184035 | Yes |
| AL2 1BW | 51.717664 | -0.286859 | 518443 | 203493 | TL184034 | Yes |
| AL2 1BX | 51.71675 | -0.278453 | 519026 | 203405 | TL190034 | Yes |
| AL2 1BY | 51.71389 | -0.282152 | 518778 | 203081 | TL187030 | Yes |
| AL2 1BZ | 51.712343 | -0.279648 | 518955 | 202913 | TL189029 | Yes |
| AL2 1DA | 51.714436 | -0.28258 | 518747 | 203141 | TL187031 | Yes |
| AL2 1DB | 51.718866 | -0.287306 | 518409 | 203626 | TL184036 | No |
| AL2 1DD | 51.725081 | -0.297308 | 517702 | 204301 | TL177043 | No |
| AL2 1DG | 51.714555 | -0.29876 | 517629 | 203128 | TL176031 | Yes |
| AL2 1DH | 51.730369 | -0.309781 | 516827 | 204869 | TL168048 | Yes |
| AL2 1DJ | 51.730934 | -0.307819 | 516961 | 204935 | TL169049 | Yes |
| AL2 1DL | 51.730934 | -0.307819 | 516961 | 204935 | TL169049 | Yes |
| AL2 1DN | 51.731282 | -0.306981 | 517018 | 204975 | TL170049 | Yes |
| AL2 1DP | 51.718471 | -0.28858 | 518322 | 203580 | TL183035 | Yes |
| AL2 1DQ | 51.716037 | -0.299255 | 517591 | 203292 | TL175032 | Yes |
| AL2 1DT | 51.72048 | -0.287592 | 518385 | 203805 | TL183038 | Yes |
| AL2 1DW | 51.72848 | -0.30723 | 517008 | 204663 | TL170046 | Yes |
| AL2 1DX | 51.720092 | -0.289359 | 518264 | 203759 | TL182037 | No |
| AL2 1DY | 51.718249 | -0.287532 | 518395 | 203557 | TL183035 | Yes |
| AL2 1DZ | 51.729559 | -0.304163 | 517217 | 204788 | TL172047 | Yes |
| AL2 1EA | 51.729732 | -0.303013 | 517296 | 204809 | TL172048 | Yes |
| AL2 1EB | 51.728213 | -0.300565 | 517469 | 204644 | TL174046 | Yes |
| AL2 1ED | 51.727346 | -0.299714 | 517530 | 204549 | TL175045 | Yes |
| AL2 1EE | 51.727118 | -0.301344 | 517418 | 204521 | TL174045 | Yes |
| AL2 1EF | 51.727461 | -0.300796 | 517455 | 204560 | TL174045 | Yes |
| AL2 1EG | 51.727861 | -0.301722 | 517390 | 204603 | TL173046 | Yes |
| AL2 1EH | 51.726695 | -0.300723 | 517462 | 204475 | TL174044 | Yes |
| AL2 1EJ | 51.726635 | -0.299045 | 517578 | 204471 | TL175044 | Yes |
| AL2 1EN | 51.726163 | -0.299961 | 517516 | 204417 | TL175044 | Yes |
| AL2 1EP | 51.724139 | -0.304931 | 517178 | 204184 | TL171041 | Yes |
| AL2 1EQ | 51.72708 | -0.303112 | 517296 | 204514 | TL172045 | Yes |
| AL2 1ER | 51.723928 | -0.30462 | 517200 | 204161 | TL171041 | Yes |
| AL2 1ES | 51.724891 | -0.302195 | 517365 | 204272 | TL173042 | Yes |
| AL2 1ET | 51.725812 | -0.299989 | 517515 | 204378 | TL175043 | Yes |
| AL2 1EU | 51.72625 | -0.298524 | 517615 | 204429 | TL176044 | Yes |
| AL2 1EW | 51.725191 | -0.302401 | 517350 | 204305 | TL173043 | Yes |
| AL2 1EY | 51.725791 | -0.298498 | 517618 | 204378 | TL176043 | Yes |
| AL2 1EZ | 51.719238 | -0.293054 | 518011 | 203658 | TL180036 | Yes |
| AL2 1FE | 51.72477 | -0.308165 | 516953 | 204249 | TL169042 | Yes |
| AL2 1FG | 51.725617 | -0.297028 | 517720 | 204361 | TL177043 | Yes |
| AL2 1FH | 51.725837 | -0.296715 | 517741 | 204386 | TL177043 | Yes |
| AL2 1FN | 51.722245 | -0.294577 | 517898 | 203990 | TL178039 | Yes |
| AL2 1FP | 51.720445 | -0.298163 | 517655 | 203784 | TL176037 | Yes |
| AL2 1FQ | 51.72034 | -0.301511 | 517424 | 203767 | TL174037 | Yes |
| AL2 1FS | 51.719392 | -0.288169 | 518348 | 203683 | TL183036 | Yes |
| AL2 1FT | 51.724648 | -0.292836 | 518012 | 204260 | TL180042 | Yes |
| AL2 1FU | 51.726262 | -0.295048 | 517855 | 204436 | TL178044 | Yes |
| AL2 1GR | 51.722419 | -0.293513 | 517971 | 204011 | TL179040 | Yes |
| AL2 1GX | 51.724664 | -0.295195 | 517849 | 204258 | TL178042 | Yes |
| AL2 1GY | 51.726126 | -0.306797 | 517044 | 204402 | TL170044 | Yes |
| AL2 1HA | 51.725647 | -0.297866 | 517662 | 204363 | TL176043 | Yes |
| AL2 1HB | 51.724485 | -0.297722 | 517675 | 204234 | TL176042 | Yes |
| AL2 1HD | 51.724651 | -0.296789 | 517739 | 204254 | TL177042 | Yes |
| AL2 1HE | 51.724196 | -0.297008 | 517725 | 204203 | TL177042 | Yes |
| AL2 1HF | 51.721424 | -0.293102 | 518002 | 203901 | TL180039 | No |
| AL2 1HG | 51.720717 | -0.289639 | 518243 | 203828 | TL182038 | Yes |
| AL2 1HJ | 51.721098 | -0.288061 | 518351 | 203873 | TL183038 | No |
| AL2 1HL | 51.722826 | -0.296177 | 517786 | 204052 | TL177040 | Yes |
| AL2 1HN | 51.72937 | -0.301043 | 517433 | 204772 | TL174047 | Yes |
| AL2 1HP | 51.726202 | -0.297686 | 517673 | 204425 | TL176044 | Yes |
| AL2 1HQ | 51.719938 | -0.296039 | 517803 | 203731 | TL178037 | Yes |
| AL2 1HR | 51.726732 | -0.297666 | 517673 | 204484 | TL176044 | Yes |
| AL2 1HS | 51.729579 | -0.299891 | 517512 | 204797 | TL175047 | Yes |
| AL2 1HT | 51.72859 | -0.298654 | 517600 | 204689 | TL175046 | Yes |
| AL2 1HU | 51.730051 | -0.299627 | 517529 | 204850 | TL175048 | Yes |
| AL2 1HW | 51.72768 | -0.299195 | 517565 | 204587 | TL175045 | Yes |
| AL2 1HX | 51.729876 | -0.298663 | 517596 | 204832 | TL175048 | Yes |
| AL2 1HY | 51.729512 | -0.298402 | 517615 | 204792 | TL176047 | Yes |
| AL2 1HZ | 51.72882 | -0.297776 | 517660 | 204716 | TL176047 | Yes |
| AL2 1JA | 51.728547 | -0.29699 | 517715 | 204687 | TL177046 | Yes |
| AL2 1JB | 51.728875 | -0.295993 | 517783 | 204725 | TL177047 | Yes |
| AL2 1JD | 51.727778 | -0.295426 | 517825 | 204604 | TL178046 | Yes |
| AL2 1JE | 51.728017 | -0.297618 | 517673 | 204627 | TL176046 | Yes |
| AL2 1JF | 51.727316 | -0.297615 | 517675 | 204549 | TL176045 | Yes |
| AL2 1JG | 51.72604 | -0.29581 | 517803 | 204410 | TL178044 | Yes |
| AL2 1JH | 51.72481 | -0.295972 | 517795 | 204273 | TL177042 | Yes |
| AL2 1JJ | 51.725541 | -0.294873 | 517869 | 204356 | TL178043 | Yes |
| AL2 1JL | 51.725439 | -0.294095 | 517923 | 204346 | TL179043 | Yes |
| AL2 1JN | 51.726256 | -0.292124 | 518057 | 204440 | TL180044 | Yes |
| AL2 1JP | 51.724865 | -0.293552 | 517962 | 204283 | TL179042 | Yes |
| AL2 1JQ | 51.724861 | -0.296361 | 517768 | 204278 | TL177042 | Yes |
| AL2 1JR | 51.724494 | -0.293392 | 517974 | 204242 | TL179042 | Yes |
| AL2 1JS | 51.724326 | -0.294817 | 517876 | 204221 | TL178042 | Yes |
| AL2 1JT | 51.723908 | -0.293312 | 517981 | 204177 | TL179041 | Yes |
| AL2 1JU | 51.723479 | -0.292836 | 518015 | 204130 | TL180041 | Yes |
| AL2 1JW | 51.725442 | -0.291155 | 518126 | 204351 | TL181043 | Yes |
| AL2 1JX | 51.724044 | -0.29461 | 517891 | 204190 | TL178041 | Yes |
| AL2 1JY | 51.724185 | -0.295648 | 517819 | 204204 | TL178042 | Yes |
| AL2 1JZ | 51.725423 | -0.296702 | 517743 | 204340 | TL177043 | Yes |
| AL2 1LA | 51.723226 | -0.296509 | 517762 | 204096 | TL177040 | No |
| AL2 1LB | 51.726985 | -0.29282 | 518007 | 204520 | TL180045 | Yes |
| AL2 1LD | 51.727712 | -0.293966 | 517926 | 204599 | TL179045 | Yes |
| AL2 1LE | 51.727763 | -0.29311 | 517985 | 204606 | TL179046 | Yes |
| AL2 1LF | 51.726476 | -0.29365 | 517951 | 204462 | TL179044 | Yes |
| AL2 1LG | 51.717304 | -0.299873 | 517545 | 203432 | TL175034 | Yes |
| AL2 1LH | 51.723226 | -0.296509 | 517762 | 204096 | TL177040 | No |
| AL2 1LJ | 51.718571 | -0.297943 | 517675 | 203576 | TL176035 | Yes |
| AL2 1LL | 51.718442 | -0.300829 | 517476 | 203557 | TL174035 | Yes |
| AL2 1LN | 51.720198 | -0.30224 | 517374 | 203750 | TL173037 | Yes |
| AL2 1LP | 51.724243 | -0.306534 | 517067 | 204193 | TL170041 | Yes |
| AL2 1LQ | 51.718857 | -0.298396 | 517643 | 203607 | TL176036 | Yes |
| AL2 1LR | 51.724751 | -0.308079 | 516959 | 204247 | TL169042 | No |
| AL2 1LS | 51.724562 | -0.304944 | 517176 | 204231 | TL171042 | Yes |
| AL2 1LT | 51.724843 | -0.305093 | 517165 | 204262 | TL171042 | Yes |
| AL2 1LU | 51.725431 | -0.302812 | 517321 | 204331 | TL173043 | Yes |
| AL2 1LW | 51.72237 | -0.304447 | 517216 | 203988 | TL172039 | Yes |
| AL2 1LX | 51.725812 | -0.304289 | 517218 | 204371 | TL172043 | Yes |
| AL2 1LY | 51.723226 | -0.296509 | 517762 | 204096 | TL177040 | No |
| AL2 1LZ | 51.72526 | -0.30596 | 517104 | 204307 | TL171043 | Yes |
| AL2 1NA | 51.725058 | -0.305664 | 517125 | 204285 | TL171042 | Yes |
| AL2 1NB | 51.725553 | -0.306283 | 517081 | 204339 | TL170043 | Yes |
| AL2 1ND | 51.725782 | -0.306636 | 517056 | 204364 | TL170043 | Yes |
| AL2 1NE | 51.726562 | -0.305839 | 517109 | 204452 | TL171044 | Yes |
| AL2 1NF | 51.726538 | -0.304798 | 517181 | 204451 | TL171044 | Yes |
| AL2 1NG | 51.727027 | -0.305011 | 517165 | 204505 | TL171045 | Yes |
| AL2 1NH | 51.726135 | -0.303669 | 517260 | 204408 | TL172044 | Yes |
| AL2 1NJ | 51.725915 | -0.301476 | 517412 | 204387 | TL174043 | Yes |
| AL2 1NL | 51.719593 | -0.300786 | 517476 | 203685 | TL174036 | Yes |
| AL2 1NN | 51.719689 | -0.29751 | 517702 | 203701 | TL177037 | No |
| AL2 1NP | 51.726378 | -0.302414 | 517346 | 204437 | TL173044 | Yes |
| AL2 1NQ | 51.726298 | -0.303098 | 517299 | 204427 | TL172044 | Yes |
| AL2 1NS | 51.719742 | -0.293715 | 517964 | 203713 | TL179037 | Yes |
| AL2 1NT | 51.720229 | -0.295058 | 517870 | 203765 | TL178037 | Yes |
| AL2 1NU | 51.720694 | -0.294258 | 517924 | 203818 | TL179038 | Yes |
| AL2 1NW | 51.719804 | -0.297998 | 517668 | 203713 | TL176037 | Yes |
| AL2 1NX | 51.720475 | -0.293427 | 517982 | 203795 | TL179037 | Yes |
| AL2 1NY | 51.719751 | -0.29496 | 517878 | 203712 | TL178037 | Yes |
| AL2 1NZ | 51.721356 | -0.295233 | 517855 | 203890 | TL178038 | Yes |
| AL2 1PA | 51.720456 | -0.295831 | 517816 | 203789 | TL178037 | Yes |
| AL2 1PB | 51.720835 | -0.297192 | 517721 | 203829 | TL177038 | Yes |
| AL2 1PD | 51.720668 | -0.299906 | 517534 | 203806 | TL175038 | Yes |
| AL2 1PE | 51.721313 | -0.296639 | 517758 | 203883 | TL177038 | Yes |
| AL2 1PF | 51.722226 | -0.298212 | 517647 | 203982 | TL176039 | Yes |
| AL2 1PG | 51.721326 | -0.300041 | 517523 | 203879 | TL175038 | Yes |
| AL2 1PH | 51.721879 | -0.300976 | 517457 | 203939 | TL174039 | Yes |
| AL2 1PJ | 51.721551 | -0.303131 | 517309 | 203899 | TL173038 | Yes |
| AL2 1PL | 51.722426 | -0.302736 | 517334 | 203997 | TL173039 | Yes |
| AL2 1PN | 51.722392 | -0.30349 | 517282 | 203992 | TL172039 | Yes |
| AL2 1PP | 51.724085 | -0.303007 | 517311 | 204181 | TL173041 | Yes |
| AL2 1PQ | 51.721059 | -0.302107 | 517381 | 203846 | TL173038 | Yes |
| AL2 1PR | 51.724086 | -0.299387 | 517561 | 204187 | TL175041 | Yes |
| AL2 1PS | 51.723623 | -0.300302 | 517499 | 204134 | TL174041 | Yes |
| AL2 1PT | 51.723457 | -0.301872 | 517391 | 204113 | TL173041 | Yes |
| AL2 1PU | 51.722849 | -0.299636 | 517547 | 204049 | TL175040 | Yes |
| AL2 1PW | 51.723869 | -0.302393 | 517354 | 204158 | TL173041 | Yes |
| AL2 1PX | 51.718957 | -0.294773 | 517893 | 203624 | TL178036 | Yes |
| AL2 1PY | 51.718652 | -0.294205 | 517933 | 203591 | TL179035 | Yes |
| AL2 1PZ | 51.718177 | -0.294932 | 517884 | 203537 | TL178035 | Yes |
| AL2 1QA | 51.719858 | -0.290583 | 518180 | 203731 | TL181037 | Yes |
| AL2 1QB | 51.723263 | -0.295928 | 517802 | 204101 | TL178041 | No |
| AL2 1QD | 51.718739 | -0.295273 | 517859 | 203599 | TL178035 | Yes |
| AL2 1QF | 51.723629 | -0.295162 | 517854 | 204143 | TL178041 | Yes |
| AL2 1QG | 51.72333 | -0.294333 | 517912 | 204111 | TL179041 | Yes |
| AL2 1QH | 51.722911 | -0.293987 | 517937 | 204065 | TL179040 | Yes |
| AL2 1QJ | 51.722635 | -0.294142 | 517927 | 204034 | TL179040 | Yes |
| AL2 1QL | 51.722159 | -0.293595 | 517966 | 203982 | TL179039 | Yes |
| AL2 1QN | 51.722076 | -0.292817 | 518020 | 203974 | TL180039 | Yes |
| AL2 1QP | 51.720951 | -0.292149 | 518069 | 203850 | TL180038 | Yes |
| AL2 1QQ | 51.722964 | -0.294506 | 517901 | 204070 | TL179040 | Yes |
| AL2 1QR | 51.720557 | -0.291035 | 518147 | 203808 | TL181038 | Yes |
| AL2 1QS | 51.719964 | -0.291028 | 518149 | 203742 | TL181037 | Yes |
| AL2 1QT | 51.721096 | -0.291565 | 518109 | 203867 | TL181038 | Yes |
| AL2 1QU | 51.719177 | -0.288901 | 518298 | 203658 | TL182036 | Yes |
| AL2 1QW | 51.721308 | -0.29257 | 518039 | 203889 | TL180038 | Yes |
| AL2 1QX | 51.71913 | -0.289351 | 518267 | 203652 | TL182036 | Yes |
| AL2 1QY | 51.718959 | -0.289966 | 518225 | 203632 | TL182036 | Yes |
| AL2 1QZ | 51.718899 | -0.290127 | 518214 | 203625 | TL182036 | Yes |
| AL2 1RB | 51.719113 | -0.291292 | 518133 | 203647 | TL181036 | Yes |
| AL2 1RD | 51.719355 | -0.291833 | 518095 | 203673 | TL180036 | Yes |