CM1
Postcode district1,561 live postcodes: 1,535 in Chelmsford, 26 in Uttlesford.
A postcode has no figures of its own: each layer is published for whole councils, neighbourhoods or exact points. The figures below are for the whole of Chelmsford, which holds 98% of CM1’s postcodes. Open the map at CM1 for neighbourhoods and points. Open the map at CM1
Deprivation by neighbourhood
English Indices of Deprivation 2025
Most deprived 10%Least
5 of Chelmsford’s 113 neighbourhoods are in England’s most deprived 20%.
Chelmsford, the council that holds 98% of CM1
Councils in CM1
- Chelmsford1535 postcodes
- Uttlesford26 postcodes