🇬🇧 United Kingdom · England
Chelmsford postcodes
Chelmsford, England, has 6 postcode districts, from CM1 to CM99. Which one applies depends on the street address.
- Postcode Districts
- 6
- Population
- 111,511
- Region
- England
- Coordinates
- 51.7358, 0.4696
All Chelmsford postcode districts
No code matches.
Includes codes within a few kilometres of the city centre. Data: GeoNames (CC BY 4.0) and zipcodestack.
UK postcodes have two parts. These lists show the first part, the postcode district (outward code), e.g. SW1A. A full postcode such as SW1A 1AA covers around 15 addresses; the zipcodestack API covers 2.6 million full UK postcodes.
Nearby cities
Find every code around Chelmsford with the radius search.
Frequently asked questions
What is the postcode of Chelmsford?
How many postcode districts does Chelmsford have?
How do I find the exact postcode for an address in Chelmsford?
Postal code API
Chelmsford postcode districts in your app
zipcodestack looks up, validates and searches postal codes in 149 countries: city, state, coordinates, distances and radius search, as JSON.
/v1/code/city documentation ZIP code API All documentation
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GET https://api.zipcodestack.com/v1/code/city?city=Chelmsford&country=gb
{
"query": { "city": "Chelmsford", "country": "gb" },
"results": ["CM1", "…"]
}