CM3 9
Postcode sector4 live postcodes, all in Chelmsford.
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. Open the map at CM3 9 for neighbourhoods and points. Open the map at CM3 9
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%.