This is a list of postcodes in the CM area , Chelmsford. The area covers Althorne , Barnston (Uttlesford) , Basildon , Bicknacre , Billericay , Birchanger , Bishop's Stortford , Black Notley , Blackmore , Blackmore End (Braintree) , Boreham , Bradwell (Braintree) , Braintree , Brentwood , Brock Hill , Broomfield , Burnham-on-Crouch , Burton End , Camden , Causeway End , Chelmsford , Childerditch , Chipping Ongar , Coalhill , Cold Norton (Maldon) , Coopersale , Crays Hill , Danbury , Doddinghurst , Doddinghurst Common , Downham , East Hanningfield , Elsenham , Epping , Epping Upland , Felsted , Finchingfield , Ford End , Fryerning , Fyfield , Galleywood , Gay Bowers , Goldhanger , Great Bardfield , Great Dunmow , Great Easton (Uttlesford) , Great Leighs , Great Notley , Great Totham (near Great Totham) , Great Totham (near Wickham Bishops) , Great Waltham , Harlow , Hatfield Broad Oak , Hatfield Heath , Hatfield Peverel , Havering , Havering's Grove , Henham , Heybridge Basin , High Easter , High Garrett , High Roding , Hoddesdon , Howe Green , Ingatestone , Ingrave and Herongate , Kelvedon Hatch , Langford (Maldon) , Latchingdon , Little Burstead , Little Common , Little Dunmow , Little Hallingbury , Little Totham , Little Waltham , Little Warley , Lower Nazeing , Maldon , Manuden , Margaretting , Matching Green , Mayland , Moreton (Epping Forest) , Mountnessing , Nazeing , Noak Hill , North Fambridge , North Weald Bassett , Nounsley , Panfield , Paslow Wood Common , Purleigh , Ramsden Bellhouse , Ramsden Heath , Ramsey Island , Rayne , Rettendon , Roxwell , Roydon (Epping Forest) , Roydon Hamlet , Sandon , Sawbridgeworth , School Green , Shalford (Braintree) , Sheering , Shelley , Silver End , South Woodham Ferrers , Southminster , Spellbrook , Stansted Mountfitchet , Stapleford Abbotts , Start Hill , Stebbing , Steeple , Stisted , Stock (Chelmsford) , Stondon Massey , Stoneyhills , Takeley and Little Canfield , Takeley Street , Terling , Thaxted , Theydon Bois , Thornwood Common , Tillingham , Tollesbury , Tolleshunt D'Arcy , Tolleshunt Knights , Tolleshunt Major , Toot Hill , Tye Green (Braintree) , Ugley Green , West Hanningfield , West Horndon , Wethersfield , Wickford , Wickham Bishops , Witham , Woodham Ferrers , Woodham Mortimer , Writtle . The area contains approximately 270,044 households with a population of about 653,626 (2011 census)
| Postcode | Latitude | Longitude | Easting | Northing | Grid reference | Active? |
|---|---|---|---|---|---|---|
| CM23 4JN | 51.853688 | 0.14565 | 547873 | 219409 | TL478194 | Yes |
| CM23 4JP | 51.855055 | 0.145642 | 547868 | 219561 | TL478195 | Yes |
| CM23 4JQ | 51.855667 | 0.144582 | 547793 | 219627 | TL477196 | Yes |
| CM23 4JR | 51.857155 | 0.143361 | 547704 | 219790 | TL477197 | Yes |
| CM23 4JS | 51.859378 | 0.143263 | 547690 | 220037 | TL476200 | Yes |
| CM23 4JT | 51.854272 | 0.142193 | 547633 | 219467 | TL476194 | Yes |
| CM23 4JU | 51.855194 | 0.141467 | 547580 | 219568 | TL475195 | Yes |
| CM23 4JW | 51.853091 | 0.145317 | 547852 | 219342 | TL478193 | Yes |
| CM23 4JX | 51.857678 | 0.141338 | 547563 | 219844 | TL475198 | Yes |
| CM23 4JY | 51.85599 | 0.14117 | 547557 | 219656 | TL475196 | Yes |
| CM23 4JZ | 51.856931 | 0.141389 | 547569 | 219761 | TL475197 | Yes |
| CM23 4LA | 51.860029 | 0.139111 | 547402 | 220101 | TL474201 | No |
| CM23 4LB | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4LD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4LE | 51.85994 | 0.140094 | 547470 | 220093 | TL474200 | Yes |
| CM23 4LF | 51.861121 | 0.140426 | 547489 | 220225 | TL474202 | Yes |
| CM23 4LG | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4LH | 51.866221 | 0.143327 | 547672 | 220798 | TL476207 | Yes |
| CM23 4LJ | 51.860392 | 0.143892 | 547730 | 220151 | TL477201 | No |
| CM23 4LL | 51.865746 | 0.142709 | 547631 | 220744 | TL476207 | Yes |
| CM23 4LN | 51.866821 | 0.143907 | 547710 | 220866 | TL477208 | Yes |
| CM23 4LP | 51.860392 | 0.143892 | 547730 | 220151 | TL477201 | No |
| CM23 4LR | 51.860003 | 0.140562 | 547502 | 220101 | TL475201 | No |
| CM23 4LS | 51.860003 | 0.140562 | 547502 | 220101 | TL475201 | No |
| CM23 4LT | 51.865485 | 0.141258 | 547532 | 220712 | TL475207 | Yes |
| CM23 4LU | 51.865066 | 0.140076 | 547452 | 220663 | TL474206 | Yes |
| CM23 4LW | 51.860392 | 0.143892 | 547730 | 220151 | TL477201 | No |
| CM23 4LX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4LY | 51.866502 | 0.141684 | 547558 | 220826 | TL475208 | Yes |
| CM23 4LZ | 51.866766 | 0.143018 | 547649 | 220858 | TL476208 | Yes |
| CM23 4NA | 51.860392 | 0.143878 | 547729 | 220151 | TL477201 | No |
| CM23 4NB | 51.864265 | 0.13661 | 547216 | 220567 | TL472205 | Yes |
| CM23 4ND | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4NE | 51.863692 | 0.136482 | 547209 | 220503 | TL472205 | Yes |
| CM23 4NF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4NG | 51.861482 | 0.1369 | 547245 | 220258 | TL472202 | Yes |
| CM23 4NH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4NJ | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4NL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4NN | 51.860003 | 0.140562 | 547502 | 220101 | TL475201 | No |
| CM23 4NP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4NQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4NR | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4NS | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4NT | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4NU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4NW | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4NX | 51.856809 | 0.139191 | 547418 | 219743 | TL474197 | Yes |
| CM23 4NY | 51.860392 | 0.143892 | 547730 | 220151 | TL477201 | No |
| CM23 4NZ | 51.873224 | 0.137006 | 547214 | 221564 | TL472215 | Yes |
| CM23 4PA | 51.86431 | 0.132662 | 546944 | 220564 | TL469205 | Yes |
| CM23 4PB | 51.87156 | 0.133078 | 546949 | 221371 | TL469213 | Yes |
| CM23 4PD | 51.87164 | 0.137047 | 547222 | 221388 | TL472213 | Yes |
| CM23 4PE | 51.872235 | 0.137991 | 547285 | 221456 | TL472214 | Yes |
| CM23 4PF | 51.871796 | 0.137897 | 547280 | 221407 | TL472214 | Yes |
| CM23 4PG | 51.872659 | 0.135904 | 547140 | 221499 | TL471214 | Yes |
| CM23 4PH | 51.872766 | 0.133469 | 546972 | 221506 | TL469215 | Yes |
| CM23 4PJ | 51.871818 | 0.134179 | 547024 | 221402 | TL470214 | Yes |
| CM23 4PL | 51.871052 | 0.133794 | 547000 | 221316 | TL469213 | Yes |
| CM23 4PN | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4PP | 51.870673 | 0.136827 | 547210 | 221280 | TL472212 | Yes |
| CM23 4PQ | 51.871428 | 0.135352 | 547106 | 221361 | TL471213 | Yes |
| CM23 4PR | 51.87074 | 0.138094 | 547297 | 221290 | TL472212 | Yes |
| CM23 4PS | 51.860392 | 0.143892 | 547730 | 220151 | TL477201 | No |
| CM23 4PT | 51.85464 | 0.135341 | 547160 | 219494 | TL471194 | Yes |
| CM23 4PU | 51.864939 | 0.135669 | 547149 | 220640 | TL471206 | Yes |
| CM23 4PW | 51.87093 | 0.136549 | 547190 | 221308 | TL471213 | Yes |
| CM23 4PX | 51.864665 | 0.138852 | 547369 | 220616 | TL473206 | Yes |
| CM23 4PY | 51.86383 | 0.134367 | 547063 | 220514 | TL470205 | Yes |
| CM23 4PZ | 51.864805 | 0.13315 | 546976 | 220620 | TL469206 | Yes |
| CM23 4QA | 51.866358 | 0.14069 | 547490 | 220808 | TL474208 | Yes |
| CM23 4QB | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4QD | 51.86653 | 0.139143 | 547383 | 220824 | TL473208 | No |
| CM23 4QE | 51.86653 | 0.139143 | 547383 | 220824 | TL473208 | Yes |
| CM23 4QF | 51.866455 | 0.138356 | 547329 | 220814 | TL473208 | Yes |
| CM23 4QG | 51.866525 | 0.136993 | 547235 | 220819 | TL472208 | Yes |
| CM23 4QH | 51.860024 | 0.142887 | 547662 | 220108 | TL476201 | No |
| CM23 4QJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4QL | 51.866525 | 0.136993 | 547235 | 220819 | TL472208 | No |
| CM23 4QN | 51.869945 | 0.138289 | 547313 | 221202 | TL473212 | Yes |
| CM23 4QP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4QQ | 51.857055 | 0.136007 | 547198 | 219764 | TL471197 | Yes |
| CM23 4QR | 51.835296 | 0.158029 | 548786 | 217389 | TL487173 | No |
| CM23 4QS | 51.857992 | 0.146784 | 547937 | 219890 | TL479198 | Yes |
| CM23 4QT | 51.857661 | 0.147204 | 547967 | 219854 | TL479198 | Yes |
| CM23 4QU | 51.857992 | 0.146784 | 547937 | 219890 | TL479198 | Yes |
| CM23 4QW | 51.857695 | 0.147307 | 547974 | 219858 | TL479198 | Yes |
| CM23 4QZ | 51.854345 | 0.135705 | 547186 | 219462 | TL471194 | Yes |
| CM23 4RA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4RB | 51.835323 | 0.158495 | 548818 | 217393 | TL488173 | Yes |
| CM23 4RD | 51.835323 | 0.158495 | 548818 | 217393 | TL488173 | No |
| CM23 4RE | 51.837004 | 0.155599 | 548613 | 217574 | TL486175 | Yes |
| CM23 4RF | 51.861045 | 0.142108 | 547605 | 220220 | TL476202 | Yes |
| CM23 4RG | 51.85204 | 0.15851 | 548764 | 219252 | TL487192 | Yes |
| CM23 4RH | 51.852087 | 0.157902 | 548722 | 219256 | TL487192 | Yes |
| CM23 4RJ | 51.852225 | 0.155789 | 548576 | 219267 | TL485192 | Yes |
| CM23 4RL | 51.865025 | 0.137373 | 547266 | 220653 | TL472206 | Yes |
| CM23 4RN | 51.852535 | 0.153117 | 548391 | 219296 | TL483192 | Yes |
| CM23 4RP | 51.852838 | 0.15226 | 548331 | 219328 | TL483193 | Yes |
| CM23 4RQ | 51.852019 | 0.157202 | 548674 | 219247 | TL486192 | Yes |
| CM23 4RR | 51.850071 | 0.158024 | 548737 | 219032 | TL487190 | Yes |
| CM23 4RS | 51.852425 | 0.156176 | 548602 | 219290 | TL486192 | Yes |
| CM23 4RT | 51.851738 | 0.15883 | 548787 | 219219 | TL487192 | Yes |
| CM23 4RU | 51.852348 | 0.159396 | 548824 | 219288 | TL488192 | Yes |
| CM23 4RW | 51.848434 | 0.158512 | 548776 | 218851 | TL487188 | Yes |
| CM23 4RX | 51.848596 | 0.158026 | 548742 | 218868 | TL487188 | Yes |
| CM23 4RY | 51.848098 | 0.157247 | 548690 | 218811 | TL486188 | Yes |
| CM23 4RZ | 51.848743 | 0.157859 | 548730 | 218884 | TL487188 | Yes |
| CM23 4SA | 51.848043 | 0.158246 | 548759 | 218807 | TL487188 | Yes |
| CM23 4SB | 51.848195 | 0.158791 | 548796 | 218825 | TL487188 | Yes |
| CM23 4SD | 51.849335 | 0.157945 | 548734 | 218950 | TL487189 | Yes |
| CM23 4SE | 51.84936 | 0.159006 | 548807 | 218955 | TL488189 | Yes |
| CM23 4SF | 51.849891 | 0.157028 | 548669 | 219010 | TL486190 | Yes |
| CM23 4SG | 51.84978 | 0.15769 | 548715 | 218999 | TL487189 | Yes |
| CM23 4SH | 51.850219 | 0.156346 | 548621 | 219045 | TL486190 | Yes |
| CM23 4SL | 51.850852 | 0.157582 | 548704 | 219118 | TL487191 | Yes |
| CM23 4SN | 51.851452 | 0.158221 | 548746 | 219186 | TL487191 | Yes |
| CM23 4ST | 51.850308 | 0.157338 | 548689 | 219057 | TL486190 | Yes |
| CM23 4SU | 51.850686 | 0.156863 | 548655 | 219098 | TL486190 | Yes |
| CM23 4SW | 51.850579 | 0.157308 | 548686 | 219087 | TL486190 | Yes |
| CM23 4SX | 51.849745 | 0.149775 | 548170 | 218979 | TL481189 | Yes |
| CM23 4SY | 51.850288 | 0.148131 | 548055 | 219036 | TL480190 | Yes |
| CM23 4SZ | 51.850888 | 0.148755 | 548096 | 219104 | TL480191 | Yes |
| CM23 4TA | 51.851065 | 0.149417 | 548141 | 219125 | TL481191 | Yes |
| CM23 4TB | 51.850175 | 0.149883 | 548176 | 219027 | TL481190 | Yes |
| CM23 4TD | 51.849824 | 0.147949 | 548044 | 218984 | TL480189 | Yes |
| CM23 4TE | 51.849453 | 0.148527 | 548085 | 218944 | TL480189 | Yes |
| CM23 4TG | 51.848857 | 0.150662 | 548234 | 218882 | TL482188 | Yes |
| CM23 4TH | 51.849155 | 0.149094 | 548125 | 218912 | TL481189 | Yes |
| CM23 4TJ | 51.848663 | 0.148969 | 548118 | 218857 | TL481188 | Yes |
| CM23 4TN | 51.848372 | 0.152091 | 548334 | 218831 | TL483188 | Yes |
| CM23 4TP | 51.848295 | 0.149924 | 548185 | 218818 | TL481188 | Yes |
| CM23 4TQ | 51.848851 | 0.149979 | 548187 | 218880 | TL481188 | Yes |
| CM23 4TR | 51.846744 | 0.158024 | 548748 | 218662 | TL487186 | Yes |
| CM23 4WA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WD | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WG | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WJ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WL | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WN | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 4WQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WR | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 4WS | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WU | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4WZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4XA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4XG | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4XH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | Yes |
| CM23 4XT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4XW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4XX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4XY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4XZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YA | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YB | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YE | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YF | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YH | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YQ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YT | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4YZ | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 4ZP | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 5AA | 51.876177 | 0.171667 | 549590 | 221963 | TL495219 | Yes |
| CM23 5AB | 51.875646 | 0.173661 | 549729 | 221908 | TL497219 | Yes |
| CM23 5AD | 51.87541 | 0.17378 | 549738 | 221882 | TL497218 | Yes |
| CM23 5AE | 51.875336 | 0.174358 | 549778 | 221875 | TL497218 | Yes |
| CM23 5AF | 51.874356 | 0.174325 | 549779 | 221766 | TL497217 | Yes |
| CM23 5AG | 51.874496 | 0.171615 | 549592 | 221776 | TL495217 | Yes |
| CM23 5AH | 51.874129 | 0.172019 | 549621 | 221736 | TL496217 | Yes |
| CM23 5AJ | 51.870967 | 0.174757 | 549820 | 221390 | TL498213 | Yes |
| CM23 5AL | 51.870537 | 0.175143 | 549848 | 221343 | TL498213 | Yes |
| CM23 5AN | 51.87206 | 0.174519 | 549800 | 221511 | TL497215 | Yes |
| CM23 5AP | 51.873723 | 0.172595 | 549662 | 221692 | TL496216 | Yes |
| CM23 5AQ | 51.873989 | 0.171329 | 549574 | 221719 | TL495217 | Yes |
| CM23 5AR | 51.875134 | 0.171166 | 549559 | 221846 | TL495218 | Yes |
| CM23 5AS | 51.874763 | 0.170814 | 549536 | 221804 | TL495218 | Yes |
| CM23 5AT | 51.870631 | 0.173942 | 549765 | 221351 | TL497213 | Yes |
| CM23 5AU | 51.868698 | 0.167152 | 549304 | 221122 | TL493211 | No |
| CM23 5AW | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 5AX | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 5AY | 51.866763 | 0.160362 | 548843 | 220893 | TL488208 | No |
| CM23 5AZ | 51.8734 | 0.181775 | 550295 | 221675 | TL502216 | Yes |
| CM23 5BA | 51.87588 | 0.176534 | 549926 | 221940 | TL499219 | Yes |
| CM23 5BB | 51.875246 | 0.179206 | 550112 | 221875 | TL501218 | Yes |
| CM23 5BD | 51.874612 | 0.181413 | 550266 | 221809 | TL502218 | Yes |
| CM23 5BE | 51.875334 | 0.176915 | 549954 | 221880 | TL499218 | Yes |
| CM23 5BG | 51.874828 | 0.178982 | 550098 | 221828 | TL500218 | Yes |
| CM23 5BH | 51.874159 | 0.176248 | 549912 | 221748 | TL499217 | Yes |
| CM23 5BJ | 51.873403 | 0.178725 | 550085 | 221669 | TL500216 | Yes |
| CM23 5BL | 51.874042 | 0.17768 | 550011 | 221738 | TL500217 | Yes |