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Colchester (CO2)

The CO2 postcode area is located in the Colchester postcode town region, within the county of Essex, and contains a total of 1128 individual postcodes.

There are 31 electoral wards in the CO2 postcode area, including Bures, Clacton-On-Sea, Colchester, Frinton-On-Sea, Halstead, Harwich, Manningtree, Sudbury, Walton On The Naze which come under the local authority of the Colchester Council.

Combining the whole postcode region, 19% of people in CO2 are classed as having an AB social grade, (i.e. 'white-collar' middle-upper class), compared to 27% across the UK.

This does not mean that the people of CO2 are poorer than other areas, but it may give an indication that there are areas of deprivation.

The CO2 postcode is in the English county of Essex and is within the CM postcode area. It covers the post towns of Colchester and West Mersea, covering an area of 68 square kilometres. It runs along the coast of the River Colne and includes the town of Wivenhoe. It is also close to the county town of Essex, Chelmsford, and Colchester Zoo.

The CO2 postcode is a high priority area for UK immigration. As such, it has seen an influx of newcomers from all over the world, including Eastern Europe, South Asia and West Africa. This has resulted in a vibrant and diverse range of cultures, with shops, restaurants and other amenities reflecting the cultural mix.

The area is home to a number of historic buildings, including the Colchester Castle and Wivenhoe House. Wivenhoe House is a Grade II Grade II* listed mansion, built in 1765. It is now the official residence of the Lord Lieutenant of Essex and European Union regional headquarters.

The CO2 postcode also has a thriving business economy, with industries including IT, financial services, software development, media production, defence technology and food production. It is also home to a number of universities, including Essex University, University College Colchester and University of East London.

Public transport links are good, with the main train stations in the area being Colchester Town and Hythe Station. Colchester Town is served by c2c trains, which travel to London Liverpool Street in around an hour. The nearest international airport is London Stansted, which can be accessed from Colchester, Chelmsford or West Mersea.

The Colchester area also has a number of parks and recreational spaces, including Colchester Nature Reserve, Good Easter Park, Castle Park and more. There is plenty to do in the area, with a variety of museums, cinemas, art galleries, theatres, galleries, pubs, nightclubs and festivals taking place throughout the year.

Postcode Disclaimer notice



  • 85%WORKING

15% of people in CO2 are either unemployed or full time students. The average UK unemployment rate is currently 4%.


  • 19%AB
  • 57%C2/C2
  • 24%DE

According to census records, 19% of people here have a social grade of AB (highest), compared to the national average of 27%.


  • 86%WHITE
  • 14%NON-WHITE

86% of people class themselves as 'white', compared to a national UK average of 81.9%.

CO Postcode Wall Map


The county of Essex

CO2 is located in the county of Essex, in England.

Essex has a total population of 1,802,200, making it the 7th largest county in the UK.

Essex has a total area of 1417 square miles, and a population density of 491 people per square kilometre. For comparison, Greater London has a density of 5,618 people/km2.

Essex Postal Town Map
Outward CodeCO2
Postal TownColchester
MSOA NameColchester 018
LSOA NameColchester 018E
Local AuthorityColchester
Area ClassificationUrban with Significant Rural (rural including hub towns 26-49%)

CO2 Electoral Wards

The postal region of CO2, includes the local towns, villages, electoral wards and stations of:

Abberton Reservoir
Abbey Field
Beacon End
Birch Green
Chitts Hills
Copford Green
Hardy's Green
Layer Breton
Layer Brook
Layer de la Haye
Layer Marney
Maypole Green
Old Heath
Shrub End
Smythe's Green
South Green
Stanway Green
The Hythe
Browse Postcodes in CO2

Dig even deeper into the CO2 postcode by clicking on a postcode below:

Click on an outward postal code below for more information about the area. Each 'outward' postcode give you a comprehensive list of all postcodes within the outward code area (CO) and estimated address.

Click on an 'outward' code for more information. For example, the outward postcode page 'EC2M' will give you an alphabetical list covering all postcodes located in the region, from 'EC2M 1BB' through to 'EC2M 7YA'.

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Chris H

Saturday, February 17, 2024

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Please tell us what you like about the CO2 postcode area, what you don't like, and what it's like to live or work here.

Your opinions on...

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