CO postcode area

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Colchester postcode area
CO is located in the United Kingdom
Postcode area CO
Postcode area name Colchester
Post towns 9
Postcode districts 16
Postcode sectors 74
Postcodes (live) 12,905
Postcodes (total) 17,146
Statistics as at February 2012[1]

The CO postcode area, also known as the Colchester postcode area,[2] is a group of sixteen postcode districts in England, which are subdivisions of nine post towns. These postcode districts 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
CO1 COLCHESTER Colchester Colchester
CO2 COLCHESTER Layer de la Haye Colchester
CO3 COLCHESTER Stanway Colchester
CO4 COLCHESTER Boxted Colchester
CO5 COLCHESTER Tiptree, Kelvedon, West Mersea, Peldon, Rowhedge Colchester, Braintree, Maldon
CO6 COLCHESTER Coggeshall, Earls Colne, Marks Tey, Great Tey, Chappel, Wakes Colne, Copford, West Bergholt, Great Horkesley, Wormingford, Nayland, Stoke-by-Nayland, Polstead Colchester, Braintree, Babergh
CO7 COLCHESTER Brightlingsea, Wivenhoe, Great Bentley Colchester, Tendring
CO8 BURES Bures, Alphamstone Colchester, Braintree, Babergh
CO9 HALSTEAD Halstead Braintree
CO10 SUDBURY Sudbury Babergh
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 Walton-on-the-Naze[3] Tendring
CO15 CLACTON-ON-SEA Clacton-on-Sea Tendring
CO16 CLACTON-ON-SEA Clacton-on-Sea, St Osyth, Little Clacton Tendring


CO postcode area map, showing postcode districts, post towns and neighbouring postcode areas. CB postcode area CM postcode area IP 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. February 2012. Table 2. Retrieved 21 April 2012.  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.