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CO postcode area

Postcode district boundaries:
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KML is from Wikidata
CO is located in the United Kingdom
Coordinates: 51°54′04″N 0°55′59″E / 51.901°N 0.933°E / 51.901; 0.933
CountryUnited Kingdom
Postcode area
Postcode area name
Post towns9
Postcode districts16
Postcode sectors74
Postcodes (live)13,249
Postcodes (total)17,987
Statistics as at May 2020[1]

The CO postcode area, also known as the Colchester postcode area,[2] is a group of sixteen postcode districts in the east of England, within nine post towns. These cover northeast Essex (including Colchester, Bures, Clacton-on-Sea, Frinton-on-Sea, Halstead, Harwich, Manningtree and Walton-on-the-Naze) and a small part of south Suffolk (including Sudbury). The main sorting office is in Colchester.


The approximate coverage of the postcode districts:

Postcode district Post town Coverage Local authority area(s)
CO1 COLCHESTER Colchester Colchester
CO2 COLCHESTER Old Heath, Berechurch, Layer de la Haye Colchester
CO3 COLCHESTER Lexden, Fordham Heath, Stanway Colchester
CO4 COLCHESTER Greenstead, Highwoods, St Johns, Myland, Boxted, Braiswick Colchester
CO5 COLCHESTER Tiptree, Kelvedon, West Mersea, Peldon, Rowhedge Colchester, Braintree, Maldon
CO6 COLCHESTER Coggeshall, Earls Colne, Marks Tey, Great Tey, Chappel, White Colne, Wakes Colne, Fordham, Copford, West Bergholt, Great Horkesley, Wormingford, Nayland, Stoke-by-Nayland, Polstead Colchester, Braintree, Babergh
CO7 COLCHESTER Brightlingsea, Wivenhoe, Great Bentley, Alresford Colchester, Tendring, Babergh
CO8 BURES Bures, Alphamstone Colchester, Braintree, Babergh
CO9 HALSTEAD Halstead Braintree
CO10 SUDBURY Sudbury, Lavenham, Long Melford Babergh, West Suffolk, Braintree
CO11 MANNINGTREE Manningtree, Lawford, Mistley, Bradfield, Wrabness, Wix, Horsley Cross, Little Bromley, Brantham, Cattawade Tendring, Babergh
CO12 HARWICH Harwich, Dovercourt, Parkeston, Ramsey, Little Oakley, Great Oakley, Stones Green Tendring
CO13 FRINTON-ON-SEA Frinton-on-Sea Tendring
CO14 WALTON ON THE NAZE[3] Walton-on-the-Naze Tendring
CO15 CLACTON-ON-SEA Clacton-on-Sea, Jaywick Tendring
CO16 CLACTON-ON-SEA Clacton-on-Sea, St Osyth, Little Clacton Tendring


KML is from Wikidata
CO postcode area map, showing postcode districts, post towns and neighbouring postcode areas.CB postcode areaCM postcode areaIP postcode area
CO postcode area map, showing postcode districts in red and post towns in grey text, with links to nearby CB, CM and IP postcode areas.

See also[edit]


  1. ^ "ONS Postcode Directory Version Notes" (ZIP). National Statistics Postcode Products. Office for National Statistics. May 2020. Table 2. Retrieved 19 June 2020. Coordinates from mean of unit postcode points, "Code-Point Open". OS OpenData. Ordnance Survey. February 2012. Retrieved 21 April 2012.
  2. ^ Royal Mail, Address Management Guide, (2004)
  3. ^ The post town is unhyphenated.

External links[edit]