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CO3 4

Postcode sector

182 live postcodes, all in Colchester.

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 Colchester. Open the map at CO3 4 for neighbourhoods and points. Open the map at CO3 4

Your MP

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

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Deprivation by neighbourhood

English Indices of Deprivation 2025

Most deprived 10%Least

11 of Colchester’s 117 neighbourhoods are in England’s most deprived 20%.

Colchester, the council that holds 100% of CO3 4

Average house price
£297,824
Down 0.5% in a year
HM Land Registry · Jul 2026
Median full-time pay
£39,353
153rd highest paid of 348
ONS earnings survey · 2025
House price to pay
7.6×
155th least affordable of 348
Worked out by Open Index
Deprivation score
17.3
126th least deprived of 296
MHCLG · England only

Everything about Colchester

Postcodes in CO3 4