CM4 postcode area · Chelmsford
The CM4 postcode district spans 8 neighbourhoods (MSOAs) in Basildon, Brentwood, Chelmsford, Epping Forest. Area Scores range from 44 to 99 across them. Every full CM4 postcode falls within one of the neighbourhoods below.
In summary
There is a sharp split within the CM4 district: Billericay North East scores 99 out of 100 (#46 of 6,856 nationally) while Fyfield, High Ongar & Stapleford Abbotts sits at 44 — neighbours on the map, 55 points apart on the index. 6 of the 8 rank in the least-deprived third of England; none falls in the most-deprived third. House prices stretch as far as the scores do: medians run from £425,000 in Great Baddow North & East to £772,500 in Fyfield, High Ongar & Stapleford Abbotts — a 1.8× gap within the CM4 district. Note that the district straddles 4 local authorities — Basildon, Brentwood, Chelmsford and Epping Forest — so its neighbourhoods answer to different councils.
Living here
Income: ONS model-based estimates (FYE 2023). Crime: data.police.uk, recorded incidents. Age & tenure: Census 2021. All OGL v3.0 — methodology.
House prices in the CM4 district
| Neighbourhood | Nat. rank | Area score | Median price |
|---|---|---|---|
| Billericay North EastBasildon | 46 | 99 | £580,000 |
| Great Baddow North & EastChelmsford | 444 | 94 | £425,000 |
| Billericay Queen's ParkBasildon | 1,088 | 84 | £462,500 |
| Ingatestone & MountnessingBrentwood | 1,301 | 81 | £628,000 |
| Kelvedon Hatch & DoddinghurstBrentwood | 1,993 | 71 | £582,500 |
| Writtle & HighwoodChelmsford | 2,185 | 68 | £485,000 |
| Margaretting, Stock & RamsdenChelmsford | 2,363 | 66 | £720,750 |
| Fyfield, High Ongar & Stapleford AbbottsEpping Forest | 3,837 | 44 | £772,500 |
People living in CM4 Census 2021
Age
Tenure
Households
Work (top occupations)
Professional 21% · Managers & directors 20% · Associate professional 15%
All occupation groups
| Professional | 21% |
| Managers & directors | 20% |
| Associate professional | 15% |
| Administrative | 12% |
| Skilled trades | 10% |
| Caring & leisure | 7% |
| Elementary | 6% |
| Sales & customer service | 5% |
| Process & plant | 4% |
Ethnic group
Religion & identity
Christian 55% · No religion 36% · Muslim 1%
Born outside the UK: 7%
Census 2021 (ONS), Crown copyright, OGL v3.0. Shares are of each question's own respondents (e.g. education is % of residents aged 16+). Figures date from March 2021 and change slowly between censuses.
Towns & places in CM4
Places whose neighbourhoods overlap the CM4 district.
Nearby areas
Postcode districts around CM4.
A postcode district overlaps several neighbourhoods, so per-neighbourhood figures are shown alongside the district-wide medians — neighbouring areas can differ a lot. Neighbourhood (MSOA) boundaries contain ONS data © Crown copyright and database right 2025, Open Government Licence v3.0.