D40/100
CM20 is a postcode district associated with Harlow. These profiles combine postcode-district records with wider-area context. The legacy composite score is experimental; source dates and limitations are listed below.
Safety
F40% below avg
Schools
F87.5% Good or Outstanding
Transport
D1 rail stations nearby
Afford.
CMedian £300,000
Environ.
A+Data under review
Health
D4 GP practices nearby
Education
FBelow average
Community
DAverage community
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This page covers the CM20 postcode district, which includes all postcodes starting with CM20 (e.g. CM20 3RG, CM20 4AB, CM20 5XX). All postcodes within CM20 share the same district-level data.
Data last updated October 2026 · Official UK government sources