There are 642 postcodes in the built up area of Harwich. The area contains approximately 8,397 households with a population of about 18,999 (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? |
|---|---|---|---|---|---|---|
| CO12 3AA | 51.937695 | 1.279793 | 625546 | 231659 | TM255316 | Yes |
| CO12 3AB | 51.937623 | 1.280093 | 625567 | 231652 | TM255316 | Yes |
| CO12 3AD | 51.937201 | 1.279116 | 625502 | 231602 | TM255316 | No |
| CO12 3AE | 51.937201 | 1.279116 | 625502 | 231602 | TM255316 | No |
| CO12 3AF | 51.938098 | 1.279182 | 625502 | 231702 | TM255317 | No |
| CO12 3AG | 51.938491 | 1.280258 | 625574 | 231749 | TM255317 | Yes |
| CO12 3AH | 51.9383 | 1.279371 | 625514 | 231725 | TM255317 | Yes |
| CO12 3AJ | 51.937469 | 1.281115 | 625638 | 231638 | TM256316 | Yes |
| CO12 3AL | 51.937938 | 1.281076 | 625633 | 231690 | TM256316 | Yes |
| CO12 3AN | 51.93716 | 1.280569 | 625602 | 231602 | TM256316 | No |
| CO12 3AP | 51.93782 | 1.282072 | 625702 | 231680 | TM257316 | Yes |
| CO12 3AQ | 51.937076 | 1.278103 | 625433 | 231585 | TM254315 | No |
| CO12 3AR | 51.938377 | 1.282098 | 625701 | 231742 | TM257317 | Yes |
| CO12 3AS | 51.938591 | 1.282478 | 625726 | 231767 | TM257317 | Yes |
| CO12 3AT | 51.938013 | 1.282886 | 625757 | 231704 | TM257317 | Yes |
| CO12 3AU | 51.937762 | 1.282868 | 625757 | 231676 | TM257316 | Yes |
| CO12 3AW | 51.938352 | 1.281703 | 625674 | 231738 | TM256317 | Yes |
| CO12 3AX | 51.937213 | 1.281271 | 625650 | 231610 | TM256316 | Yes |
| CO12 3AY | 51.937296 | 1.280535 | 625599 | 231617 | TM255316 | Yes |
| CO12 3AZ | 51.937179 | 1.281181 | 625644 | 231606 | TM256316 | Yes |
| CO12 3BA | 51.938785 | 1.282957 | 625758 | 231790 | TM257317 | Yes |
| CO12 3BB | 51.939395 | 1.282696 | 625737 | 231857 | TM257318 | Yes |
| CO12 3BD | 51.940071 | 1.28455 | 625861 | 231938 | TM258319 | Yes |
| CO12 3BE | 51.937695 | 1.279793 | 625546 | 231659 | TM255316 | Yes |
| CO12 3BG | 51.938726 | 1.283768 | 625814 | 231786 | TM258317 | Yes |
| CO12 3BH | 51.939137 | 1.284846 | 625886 | 231835 | TM258318 | Yes |
| CO12 3BJ | 51.93917 | 1.28396 | 625825 | 231836 | TM258318 | Yes |
| CO12 3BL | 51.938875 | 1.283604 | 625802 | 231802 | TM258318 | No |
| CO12 3BN | 51.940644 | 1.285291 | 625909 | 232004 | TM259320 | Yes |
| CO12 3BP | 51.942636 | 1.286775 | 626001 | 232230 | TM260322 | Yes |
| CO12 3BQ | 51.939118 | 1.282923 | 625754 | 231827 | TM257318 | Yes |
| CO12 3BS | 51.940897 | 1.285906 | 625950 | 232034 | TM259320 | Yes |
| CO12 3BT | 51.937076 | 1.278103 | 625433 | 231585 | TM254315 | No |
| CO12 3BU | 51.937695 | 1.279793 | 625546 | 231659 | TM255316 | No |
| CO12 3BW | 51.941733 | 1.286243 | 625969 | 232128 | TM259321 | Yes |
| CO12 3BX | 51.937695 | 1.279793 | 625546 | 231659 | TM255316 | No |
| CO12 3BY | 51.937076 | 1.278103 | 625433 | 231585 | TM254315 | No |
| CO12 3BZ | 51.939695 | 1.283533 | 625793 | 231893 | TM257318 | Yes |
| CO12 3DA | 51.944946 | 1.288094 | 626080 | 232491 | TM260324 | Yes |
| CO12 3DB | 51.945707 | 1.287582 | 626041 | 232574 | TM260325 | Yes |
| CO12 3DD | 51.946385 | 1.286497 | 625963 | 232646 | TM259326 | Yes |
| CO12 3DE | 51.946333 | 1.287089 | 626004 | 232642 | TM260326 | Yes |
| CO12 3DF | 51.938918 | 1.285281 | 625917 | 231812 | TM259318 | Yes |
| CO12 3DG | 51.946588 | 1.285682 | 625906 | 232666 | TM259326 | Yes |
| CO12 3DH | 51.945021 | 1.289278 | 626161 | 232503 | TM261325 | No |
| CO12 3DJ | 51.944869 | 1.288612 | 626116 | 232484 | TM261324 | Yes |
| CO12 3DL | 51.944954 | 1.289099 | 626149 | 232495 | TM261324 | Yes |
| CO12 3DN | 51.945036 | 1.288421 | 626102 | 232502 | TM261325 | No |
| CO12 3DP | 51.945526 | 1.287933 | 626066 | 232555 | TM260325 | Yes |
| CO12 3DQ | 51.944604 | 1.288768 | 626128 | 232455 | TM261324 | Yes |
| CO12 3DR | 51.945317 | 1.28866 | 626117 | 232534 | TM261325 | Yes |
| CO12 3DS | 51.946083 | 1.287639 | 626043 | 232616 | TM260326 | Yes |
| CO12 3DT | 51.945636 | 1.289498 | 626173 | 232572 | TM261325 | Yes |
| CO12 3DU | 51.937863 | 1.277608 | 625395 | 231671 | TM253316 | Yes |
| CO12 3DW | 51.945077 | 1.286968 | 626002 | 232502 | TM260325 | No |
| CO12 3DX | 51.946579 | 1.287602 | 626038 | 232671 | TM260326 | Yes |
| CO12 3DY | 51.946934 | 1.287774 | 626048 | 232711 | TM260327 | Yes |
| CO12 3DZ | 51.937695 | 1.279793 | 625546 | 231659 | TM255316 | No |
| CO12 3EA | 51.946855 | 1.286749 | 625978 | 232699 | TM259326 | Yes |
| CO12 3EB | 51.946762 | 1.286539 | 625964 | 232688 | TM259326 | Yes |
| CO12 3ED | 51.946917 | 1.285822 | 625914 | 232703 | TM259327 | Yes |
| CO12 3EE | 51.947268 | 1.286459 | 625956 | 232744 | TM259327 | Yes |
| CO12 3EF | 51.946804 | 1.28727 | 626014 | 232695 | TM260326 | Yes |
| CO12 3EG | 51.94651 | 1.288136 | 626075 | 232665 | TM260326 | Yes |
| CO12 3EH | 51.937695 | 1.279793 | 625546 | 231659 | TM255316 | No |
| CO12 3EJ | 51.946826 | 1.289076 | 626138 | 232703 | TM261327 | Yes |
| CO12 3EL | 51.938946 | 1.281354 | 625647 | 231803 | TM256318 | Yes |
| CO12 3EN | 51.947235 | 1.288902 | 626124 | 232748 | TM261327 | Yes |
| CO12 3EP | 51.946362 | 1.289246 | 626152 | 232652 | TM261326 | No |
| CO12 3EQ | 51.937044 | 1.2812 | 625646 | 231591 | TM256315 | Yes |
| CO12 3ER | 51.946647 | 1.288713 | 626114 | 232682 | TM261326 | Yes |
| CO12 3ES | 51.945439 | 1.289134 | 626149 | 232549 | TM261325 | Yes |
| CO12 3ET | 51.947573 | 1.288083 | 626066 | 232783 | TM260327 | Yes |
| CO12 3EU | 51.947514 | 1.287627 | 626035 | 232775 | TM260327 | Yes |
| CO12 3EW | 51.945934 | 1.288487 | 626102 | 232602 | TM261326 | No |
| CO12 3EX | 51.947304 | 1.287728 | 626043 | 232752 | TM260327 | Yes |
| CO12 3EY | 51.938065 | 1.278452 | 625452 | 231696 | TM254316 | Yes |
| CO12 3EZ | 51.947392 | 1.286847 | 625982 | 232759 | TM259327 | Yes |
| CO12 3FA | 51.925881 | 1.265401 | 624616 | 230301 | TM246303 | Yes |
| CO12 3FB | 51.937076 | 1.278103 | 625433 | 231585 | TM254315 | No |
| CO12 3FD | 51.937464 | 1.274508 | 625184 | 231617 | TM251316 | Yes |
| CO12 3FF | 51.937075 | 1.274276 | 625170 | 231573 | TM251315 | Yes |
| CO12 3FG | 51.93766 | 1.272325 | 625033 | 231632 | TM250316 | Yes |
| CO12 3FH | 51.937687 | 1.273608 | 625121 | 231639 | TM251316 | Yes |
| CO12 3FJ | 51.93721 | 1.274272 | 625169 | 231588 | TM251315 | Yes |
| CO12 3FL | 51.93773 | 1.273989 | 625147 | 231645 | TM251316 | Yes |
| CO12 3FN | 51.943846 | 1.288203 | 626093 | 232369 | TM260323 | Yes |
| CO12 3FP | 51.943743 | 1.288675 | 626126 | 232359 | TM261323 | Yes |
| CO12 3FQ | 51.944964 | 1.287149 | 626015 | 232490 | TM260324 | Yes |
| CO12 3FR | 51.939036 | 1.289742 | 626223 | 231839 | TM262318 | Yes |
| CO12 3FS | 51.936231 | 1.27519 | 625237 | 231482 | TM252314 | Yes |
| CO12 3GS | 51.942298 | 1.283709 | 625792 | 232183 | TM257321 | Yes |
| CO12 3GT | 51.937657 | 1.276298 | 625306 | 231644 | TM253316 | Yes |
| CO12 3HA | 51.947678 | 1.287217 | 626006 | 232792 | TM260327 | Yes |
| CO12 3HB | 51.947998 | 1.287342 | 626013 | 232828 | TM260328 | Yes |
| CO12 3HD | 51.945117 | 1.285516 | 625902 | 232502 | TM259325 | No |
| CO12 3HE | 51.94426 | 1.283998 | 625802 | 232402 | TM258324 | No |
| CO12 3HF | 51.941917 | 1.283521 | 625781 | 232140 | TM257321 | Yes |
| CO12 3HG | 51.943831 | 1.285204 | 625887 | 232358 | TM258323 | Yes |
| CO12 3HH | 51.947913 | 1.28655 | 625959 | 232816 | TM259328 | Yes |
| CO12 3HJ | 51.936425 | 1.273079 | 625091 | 231497 | TM250314 | Yes |
| CO12 3HL | 51.944218 | 1.285843 | 625929 | 232403 | TM259324 | Yes |
| CO12 3HN | 51.943619 | 1.285712 | 625923 | 232336 | TM259323 | Yes |
| CO12 3HP | 51.943612 | 1.284969 | 625872 | 232333 | TM258323 | Yes |
| CO12 3HQ | 51.943865 | 1.284959 | 625870 | 232361 | TM258323 | Yes |
| CO12 3HR | 51.943441 | 1.284346 | 625830 | 232312 | TM258323 | Yes |
| CO12 3HS | 51.942859 | 1.283939 | 625805 | 232246 | TM258322 | Yes |
| CO12 3HT | 51.943065 | 1.284944 | 625873 | 232272 | TM258322 | Yes |
| CO12 3HU | 51.942484 | 1.28544 | 625910 | 232209 | TM259322 | Yes |
| CO12 3HW | 51.943236 | 1.285553 | 625914 | 232293 | TM259322 | Yes |
| CO12 3HX | 51.942043 | 1.285131 | 625891 | 232159 | TM258321 | Yes |
| CO12 3HY | 51.941549 | 1.284775 | 625869 | 232103 | TM258321 | Yes |
| CO12 3HZ | 51.942598 | 1.284575 | 625850 | 232219 | TM258322 | Yes |
| CO12 3JA | 51.941106 | 1.283898 | 625811 | 232051 | TM258320 | Yes |
| CO12 3JB | 51.94211 | 1.28435 | 625837 | 232164 | TM258321 | Yes |
| CO12 3JD | 51.940751 | 1.283072 | 625756 | 232009 | TM257320 | Yes |
| CO12 3JE | 51.941244 | 1.284418 | 625846 | 232068 | TM258320 | Yes |
| CO12 3JF | 51.941309 | 1.28403 | 625819 | 232074 | TM258320 | Yes |
| CO12 3JG | 51.940504 | 1.283534 | 625789 | 231983 | TM257319 | Yes |
| CO12 3JH | 51.941034 | 1.283238 | 625766 | 232041 | TM257320 | No |
| CO12 3JJ | 51.947823 | 1.28781 | 626046 | 232810 | TM260328 | Yes |
| CO12 3JL | 51.94071 | 1.282283 | 625702 | 232002 | TM257320 | No |
| CO12 3JN | 51.946015 | 1.285582 | 625902 | 232602 | TM259326 | No |
| CO12 3JP | 51.936803 | 1.28047 | 625597 | 231562 | TM255315 | No |
| CO12 3JQ | 51.940954 | 1.283538 | 625787 | 232033 | TM257320 | Yes |
| CO12 3JR | 51.936533 | 1.280799 | 625621 | 231533 | TM256315 | Yes |
| CO12 3JS | 51.936839 | 1.281127 | 625642 | 231568 | TM256315 | No |
| CO12 3JT | 51.936383 | 1.281661 | 625681 | 231519 | TM256315 | Yes |
| CO12 3JU | 51.936452 | 1.281783 | 625689 | 231527 | TM256315 | Yes |
| CO12 3JW | 51.946905 | 1.284948 | 625854 | 232699 | TM258326 | Yes |
| CO12 3JX | 51.936279 | 1.282512 | 625740 | 231510 | TM257315 | Yes |
| CO12 3JY | 51.935594 | 1.281255 | 625657 | 231430 | TM256314 | Yes |
| CO12 3JZ | 51.93688 | 1.282251 | 625719 | 231576 | TM257315 | Yes |
| CO12 3LA | 51.936762 | 1.281631 | 625677 | 231561 | TM256315 | Yes |
| CO12 3LB | 51.936801 | 1.283467 | 625803 | 231571 | TM258315 | Yes |
| CO12 3LD | 51.937292 | 1.283576 | 625808 | 231626 | TM258316 | Yes |
| CO12 3LE | 51.937076 | 1.278103 | 625433 | 231585 | TM254315 | No |
| CO12 3LF | 51.938275 | 1.283502 | 625798 | 231735 | TM257317 | Yes |
| CO12 3LG | 51.938578 | 1.284557 | 625869 | 231772 | TM258317 | Yes |
| CO12 3LH | 51.940675 | 1.286137 | 625967 | 232010 | TM259320 | Yes |
| CO12 3LJ | 51.93959 | 1.285679 | 625941 | 231888 | TM259318 | Yes |
| CO12 3LL | 51.93587 | 1.281668 | 625684 | 231462 | TM256314 | Yes |
| CO12 3LN | 51.936679 | 1.280723 | 625615 | 231549 | TM256315 | No |
| CO12 3LP | 51.941745 | 1.286783 | 626006 | 232131 | TM260321 | Yes |
| CO12 3LR | 51.940716 | 1.286911 | 626020 | 232017 | TM260320 | Yes |
| CO12 3LS | 51.941754 | 1.287424 | 626050 | 232134 | TM260321 | Yes |
| CO12 3LT | 51.942466 | 1.287709 | 626066 | 232214 | TM260322 | Yes |
| CO12 3LU | 51.943016 | 1.287312 | 626036 | 232274 | TM260322 | Yes |
| CO12 3LW | 51.940274 | 1.286006 | 625960 | 231965 | TM259319 | No |
| CO12 3LX | 51.943245 | 1.287169 | 626025 | 232299 | TM260322 | Yes |
| CO12 3LY | 51.943667 | 1.2872 | 626025 | 232346 | TM260323 | Yes |
| CO12 3LZ | 51.944043 | 1.287897 | 626071 | 232390 | TM260323 | Yes |
| CO12 3NA | 51.943955 | 1.286872 | 626001 | 232377 | TM260323 | No |
| CO12 3NB | 51.944077 | 1.288642 | 626122 | 232396 | TM261323 | No |
| CO12 3ND | 51.945212 | 1.287284 | 626023 | 232518 | TM260325 | Yes |
| CO12 3NE | 51.94588 | 1.286882 | 625992 | 232591 | TM259325 | Yes |
| CO12 3NF | 51.946338 | 1.285911 | 625923 | 232639 | TM259326 | Yes |
| CO12 3NG | 51.945077 | 1.287594 | 626045 | 232504 | TM260325 | Yes |
| CO12 3NH | 51.944711 | 1.289445 | 626174 | 232469 | TM261324 | Yes |
| CO12 3NJ | 51.943047 | 1.288799 | 626138 | 232282 | TM261322 | Yes |
| CO12 3NL | 51.942047 | 1.290152 | 626236 | 232175 | TM262321 | Yes |
| CO12 3NN | 51.941125 | 1.288702 | 626141 | 232068 | TM261320 | Yes |
| CO12 3NP | 51.940364 | 1.288559 | 626135 | 231983 | TM261319 | Yes |
| CO12 3NQ | 51.935964 | 1.278619 | 625474 | 231463 | TM254314 | Yes |
| CO12 3NR | 51.939982 | 1.28709 | 626036 | 231936 | TM260319 | Yes |
| CO12 3NS | 51.939024 | 1.286613 | 626008 | 231828 | TM260318 | Yes |
| CO12 3NT | 51.943925 | 1.288587 | 626119 | 232379 | TM261323 | No |
| CO12 3NU | 51.943241 | 1.288289 | 626102 | 232302 | TM261323 | No |
| CO12 3NW | 51.940826 | 1.288142 | 626104 | 232033 | TM261320 | Yes |
| CO12 3NX | 51.937067 | 1.278103 | 625433 | 231584 | TM254315 | No |
| CO12 3NY | 51.943528 | 1.287685 | 626059 | 232332 | TM260323 | Yes |
| CO12 3NZ | 51.943241 | 1.288289 | 626102 | 232302 | TM261323 | No |
| CO12 3PA | 51.937023 | 1.279351 | 625519 | 231583 | TM255315 | Yes |
| CO12 3PB | 51.937312 | 1.278019 | 625426 | 231611 | TM254316 | Yes |
| CO12 3PD | 51.93673 | 1.277627 | 625402 | 231545 | TM254315 | Yes |
| CO12 3PE | 51.935788 | 1.27881 | 625488 | 231444 | TM254314 | Yes |
| CO12 3PF | 51.936463 | 1.276545 | 625329 | 231512 | TM253315 | Yes |
| CO12 3PG | 51.936231 | 1.27519 | 625237 | 231482 | TM252314 | No |
| CO12 3PH | 51.936284 | 1.277493 | 625395 | 231495 | TM253314 | Yes |
| CO12 3PJ | 51.936463 | 1.276545 | 625329 | 231512 | TM253315 | Yes |
| CO12 3PL | 51.935906 | 1.274584 | 625197 | 231444 | TM251314 | Yes |
| CO12 3PN | 51.936538 | 1.278064 | 625433 | 231525 | TM254315 | Yes |
| CO12 3PP | 51.935721 | 1.279605 | 625543 | 231439 | TM255314 | Yes |
| CO12 3PQ | 51.936856 | 1.277272 | 625377 | 231558 | TM253315 | Yes |
| CO12 3PR | 51.935863 | 1.279368 | 625526 | 231454 | TM255314 | Yes |
| CO12 3PS | 51.936698 | 1.27876 | 625480 | 231545 | TM254315 | Yes |
| CO12 3PT | 51.93676 | 1.279113 | 625504 | 231553 | TM255315 | Yes |
| CO12 3PU | 51.936357 | 1.27939 | 625525 | 231509 | TM255315 | Yes |
| CO12 3PW | 51.936249 | 1.278421 | 625459 | 231494 | TM254314 | Yes |
| CO12 3PX | 51.936381 | 1.279493 | 625532 | 231512 | TM255315 | Yes |
| CO12 3PY | 51.93657 | 1.279492 | 625531 | 231533 | TM255315 | Yes |
| CO12 3PZ | 51.936625 | 1.280093 | 625572 | 231541 | TM255315 | Yes |
| CO12 3QA | 51.935977 | 1.280118 | 625577 | 231469 | TM255314 | Yes |
| CO12 3QB | 51.936893 | 1.279851 | 625554 | 231570 | TM255315 | Yes |
| CO12 3QD | 51.936871 | 1.27998 | 625563 | 231568 | TM255315 | No |
| CO12 3QE | 51.935272 | 1.277652 | 625411 | 231383 | TM254313 | Yes |
| CO12 3QF | 51.935553 | 1.278225 | 625449 | 231416 | TM254314 | Yes |
| CO12 3QG | 51.93512 | 1.277277 | 625386 | 231365 | TM253313 | Yes |
| CO12 3QH | 51.935302 | 1.274962 | 625226 | 231378 | TM252313 | Yes |
| CO12 3QJ | 51.937135 | 1.276623 | 625331 | 231587 | TM253315 | Yes |