CO Postcode Area for the Colchester Region

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A wide range of spatial data has been analysed to present this overview. If you would like anything added, please contact us.

This section of the site is all about the CO Postcode area, also known as the Colchester Postal Area. Explore links to the next level to learn more about specific postcode districts such as CO1.

Detailed map of the CO Postcode Area
Detailed map showing districts and posttowns in the CO Colchester Postcode Area
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Map of the CO Colchester Postcode Area

Explore the postcode area by using our interactive map.

Quick Facts about the CO Postcode

CO Area Statistics
Width from East to West 36.21 mi
Height from North to South 27.04 mi
Area of CO 525.11 mi²
Maximum Width 38.49 mi
Perimeter of Postcode Area 214.17 mi
Number of Postcode Districts 16
Number of Postcode Sectors 69
Number of Post Towns 9
Number of Postcodes 13,349
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The CO postcode area represents a group of 16 postal districts in the Colchester area of the United Kingdom. The area code stands for the letters c and o in COlchester. The area has a population of 411,418 and covers an area of 1,336,317 hectares. Fun fact: 0.63% of the population of Great Britain lives in this area.

The postcode area falls within the following counties: Essex (84.72%), Suffolk (15.28%).

Post Towns and Postcode Districts

COLCHESTER
CO1 EssexCO2 EssexCO3 EssexCO4 EssexCO5 EssexCO6 Essex (73%), Suffolk (26%)CO7 Essex (85%), Suffolk (14%)
BURES
CO8 Essex (57%), Suffolk (42%)
HALSTEAD
CO9 Essex
SUDBURY
CO10 Essex (9%), Suffolk (90%)
MANNINGTREE
CO11 Essex (81%), Suffolk (18%)
HARWICH
CO12 Essex
FRINTON-ON-SEA
CO13 Essex
WALTON ON THE NAZE
CO14 Essex
CLACTON-ON-SEA
CO15 EssexCO16 Essex

Where is the CO Postcode Area?

The CO Colchester Postcode is in the East of England.. The postal area borders the following neighbouring postal areas: CM - Chelmsford, CB - Cambridge and IP - Ipswich, It also borders The North Sea, Hamford Water, Harwich Harbour and The Thames Estuary.


Map Showing Location of the postcode area
Where is the postcode area?
A word cloud for the postcode area
A word cloud for the area

How built up is the Postcode Area?

I've calculated the total area covered by building footprints within the postcode area.
By analyzing this against the total area, I've determined the percentage of the area that's developed, this will give you an idea of how urban or rural the postcode region is.
The higher the percentage the more urban the area is. For example the least urban district is CO8 and the most urban is CO1.

Building Area Summary
Postcode District Total Area (m²) Footprint Area (m²) Built Percentage %
CO8 32,474,192 228,429 0.70%
CO10 313,322,609 3,369,737 1.08%
CO9 159,582,267 1,748,578 1.10%
CO6 183,133,264 2,300,392 1.26%
CO5 138,443,027 1,979,667 1.43%
CO7 153,686,182 2,543,254 1.65%
CO11 60,222,402 998,947 1.66%
CO16 85,787,336 1,713,049 2.00%
CO12 44,611,309 1,145,303 2.57%
CO13 25,194,868 864,519 3.43%
CO2 41,377,866 1,731,697 4.19%
CO4 44,028,373 2,280,873 5.18%
CO14 6,776,822 386,994 5.71%
CO3 24,255,014 1,703,413 7.02%
CO15 18,154,872 2,297,225 12.65%
CO1 4,298,531 823,670 19.16%
Total 1,335,348,934 (m²) 26,115,747 (m²) 1.96%
Map of the CO Postcode Area

A map showing the boundary of CO in relation to other areas

There are 13 towns within the Colchester postcode area.

Map of Posttowns in the CO
Map of Posttowns in the CO Postal Area
Area of the CO postcode area
Unit Area²
Hectares 1,336,317²
Miles 5,160²
Feet 143,839,825,563²
Kilometres 13,363²

Postal Delivery Offices Serving the Postcode Area

  • Alresford (co) Scale Payment Delivery Office
  • Ardleigh Scale Payment Delivery Office
  • Boxford Scale Payment Delivery Office
  • Brightlingsea Delivery Office
  • Bures Scale Payment Delivery Office
  • Clacton-on-sea Delivery Office
  • Coggeshall Scale Payment Delivery Office
  • Colchester Delivery Office
  • Dedham Scale Payment Delivery Office
  • Earls Colne Scale Payment Delivery Office
  • East Bergholt Scale Payment Delivery Office
  • Eight Ash Green Scale Payment Delivery Office
  • Elmstead Scale Payment Delivery Office
  • Fingringhoe Scale Payment Delivery Office
  • Frinton-on-sea Delivery Office
  • Great Bentley Scale Payment Delivery Office
  • Great Bromley Scale Payment Delivery Office
  • Great Horkesley Scale Payment Delivery Office
  • Great Yeldham Scale Payment Delivery Office
  • Halstead Delivery Office
  • Harwich Delivery Office
  • Kelve Delivery Office N Scale Payment Delivery Office
  • Lexden Heath Scale Payment Delivery Office
  • Manningtree Delivery Office
  • Marks Tey Scale Payment Delivery Office
  • Nayland Scale Payment Delivery Office
  • Polstead Scale Payment Delivery Office
  • Rowhedge Scale Payment Delivery Office
  • Sible Hedingham Scale Payment Delivery Office
  • St. Osyth Scale Payment Delivery Office
  • Stoke By Nayland Scale Payment Delivery Office
  • Stratford St. Mary Scale Payment Delivery Office
  • Sudbury Delivery Office
  • Thorrington Scale Payment Delivery Office
  • Tiptree Delivery Office
  • Wakes Colne Scale Payment Delivery Office
  • Walton On The Naze Delivery Office
  • West Bergholt Scale Payment Delivery Office
  • West Mersea Postal Delivery Office
  • Wivenhoe Delivery Office

Tourist Attractions within the Area

Nearby Postcodes

CM
CB
IP

Councils within the CO Area

Councils within the CO area
Colchester District (B) (5158 postcodes)
Tendring District (4620 postcodes)
Babergh District (1779 postcodes)
Braintree District (1576 postcodes)
West Suffolk District (193 postcodes)
Maldon District (B) (22 postcodes)

Towns and Villages within the Area

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