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? |
|---|---|---|---|---|---|---|
| CM23 9EH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9ER | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9ES | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9ET | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9EZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FG | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FR | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FS | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9FZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GG | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GR | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GS | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9GZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HG | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9HJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9HR | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HS | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9HU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9HY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9JD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JG | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JR | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JS | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9JU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9JX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9JZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LG | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9LH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LR | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LS | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9LZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9ND | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9NF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9NL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9NQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NS | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9NW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9NY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9NZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PG | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9PR | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9PW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9PY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9PZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9QA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9QD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9QE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 9QF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 9SA | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SB | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SD | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SE | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SF | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SG | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SH | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SJ | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SL | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SN | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SP | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SQ | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SR | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SS | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9ST | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SU | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SW | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SX | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SY | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9SZ | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TA | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TB | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TD | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TE | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TF | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TG | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TH | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TJ | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TL | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TN | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| CM23 9TP | 51.871687 | 0.161063 | 548875 | 221442 | TL488214 | No |
| EN10 6AA | 51.728656 | -0.025315 | 536476 | 205172 | TL364051 | Yes |
| EN10 6AB | 51.728232 | -0.025217 | 536484 | 205125 | TL364051 | Yes |
| EN10 6AD | 51.727162 | -0.025742 | 536451 | 205005 | TL364050 | Yes |
| EN10 6AE | 51.724971 | -0.024867 | 536518 | 204763 | TL365047 | Yes |
| EN10 6AF | 51.722441 | -0.024688 | 536538 | 204482 | TL365044 | Yes |
| EN10 6AG | 51.723405 | -0.025326 | 536491 | 204588 | TL364045 | Yes |
| EN10 6AH | 51.723415 | -0.025905 | 536451 | 204588 | TL364045 | Yes |
| EN10 6AJ | 51.723116 | -0.025773 | 536461 | 204555 | TL364045 | Yes |
| EN10 6AL | 51.722711 | -0.024705 | 536536 | 204512 | TL365045 | Yes |
| EN10 6AN | 51.722561 | -0.025436 | 536486 | 204493 | TL364044 | Yes |
| EN10 6AP | 51.719491 | -0.026814 | 536400 | 204150 | TL363041 | Yes |
| EN10 6AQ | 51.723001 | -0.024808 | 536528 | 204544 | TL365045 | Yes |
| EN10 6AR | 51.720343 | -0.026661 | 536408 | 204245 | TL364042 | Yes |
| EN10 6AS | 51.720417 | -0.02786 | 536325 | 204251 | TL363042 | Yes |
| EN10 6AT | 51.720059 | -0.028498 | 536282 | 204210 | TL362042 | Yes |
| EN10 6AU | 51.719863 | -0.027522 | 536350 | 204190 | TL363041 | Yes |
| EN10 6AW | 51.722146 | -0.024252 | 536569 | 204450 | TL365044 | Yes |
| EN10 6AX | 51.720617 | -0.026374 | 536427 | 204276 | TL364042 | Yes |