About CM Postcodes
The CM postcode area contains 28 postcode districts and covers Chelmsford, Harlow, Brentwood, Billericay and other areas. The total population across all districts is approximately 653,626.
Postcode Districts 28
CM0
553 postcodes
15,970 pop.
CM1
1,531 postcodes
62,632 pop.
CM11
448 postcodes
19,283 pop.
CM12
522 postcodes
20,043 pop.
CM13
698 postcodes
24,715 pop.
CM14
638 postcodes
19,453 pop.
CM15
586 postcodes
23,277 pop.
CM16
626 postcodes
22,217 pop.
CM17
520 postcodes
21,268 pop.
CM18
431 postcodes
24,494 pop.
CM19
397 postcodes
19,307 pop.
CM2
1,312 postcodes
58,252 pop.
CM20
642 postcodes
21,241 pop.
CM21
315 postcodes
10,865 pop.
CM22
518 postcodes
13,712 pop.
CM23
1,105 postcodes
40,376 pop.
CM24
273 postcodes
6,752 pop.
CM3
1,571 postcodes
53,826 pop.
CM4
428 postcodes
10,032 pop.
CM5
450 postcodes
10,544 pop.
CM6
938 postcodes
24,941 pop.
CM7
1,325 postcodes
48,725 pop.
CM77
450 postcodes
15,475 pop.
CM8
903 postcodes
33,021 pop.
CM9
998 postcodes
33,205 pop.
CM92
18 postcodes
CM98
19 postcodes
CM99
80 postcodes
Post Towns in CM Area
Chelmsford
Harlow
Brentwood
Billericay
Bishop's Stortford
Dunmow
Braintree
Burnham-on-Crouch
Southminster
Epping
Sawbridgeworth
Stansted
Ingatestone
Ongar
Witham
Maldon



