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CM3 is a postcode district associated with Chelmsford. These profiles combine postcode-district records with wider-area context. The legacy composite score is experimental; source dates and limitations are listed below.
Safety
B91% below avg
Schools
F90.5% Good or Outstanding
Transport
D10 stops nearby
Afford.
FMedian £450,000
Environ.
AData under review
Health
B8 GP practices nearby
Education
CAround average
Community
BStrong community
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This page covers the CM3 postcode district, which includes all postcodes starting with CM3 (e.g. CM3 3RG, CM3 4AB, CM3 5XX). All postcodes within CM3 share the same district-level data.
Data last updated October 2026 · Official UK government sources