CO5 postcode district

Postcodes and sectors

977 of the district's 1,250 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.81547, 0.81834, which locates the district, not a building.

Companies registered in CO5

Companies House lists 2,201 companies with a registered office in CO5; 128 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for CO5

• Essex
• Eastern
• Colchester
• Tiptree
• West Mersea
• Braintree
• Kelvedon
• Rowhedge
• Feering
• Abberton
• Maldon
• Fingringhoe
• Tolleshunt Knights
• East Mersea
• Tiptree Heath
• Messing
• Peldon
• High Park Corner
• Barrow Hill
• Langenhoe
• Inworth
• Smythe's Green
• Windmill Hill
• Little Wigborough

Roads filed under CO5

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Abberton Road
• Abbots Wick Lane
• Acorn Mews
• Ager Avenue
• Albaney Terrace
• Albion Street
• Alexandra Avenue
• Almond Close
• Anchor Road
• Apricot Mews
• Archer Crescent
• Arnold Villas
• Ashurst Close
• Avocet Close
• Bainbridge Drive
• Ballast Quay Road
• Ball Lane
• Barbrook Lane
• Barfield Road
• Barnfield
• Barrow Mews
• Bassingham Crescent
• Beach Road
• Bedford Close
• Bellingham Place
• Berryfield Close
• Beverley Avenue
• Bijou Close
• Birch Close
• Birchwood Close
• Birchwood Way
• Bird Lane
• Birkin Close
• Bishops Lane
• Bittern Close
• Blackwater Drive
• Bladon Close
• Blenheim Way
• Blossom Mews
• Bluebell Close
• Blue Road
• Bokhara Close
• Boundary Place
• Bower Grove
• Bower Hall Lane
• Bracken Way
• Brambledown
• Brand Drive
• Braxted Park Road
• Brendon Court
• Brickhouse Close
• Bridge Row
• Brierley Avenue
• Brierley Paddocks
• Brock Close
• Brockwell Lane
• Broman's Lane
• Brook Close
• Brook Hall Road
• Brookland

Check an address in CO5

Check an address in CO5

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CO5" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CO5

What does a CO5 postcode tell you?

That the address lies in the CO5 district of the CO (Colchester) postcode area, and the place OS Open Names most often lists first for its postcodes is Tiptree. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 977 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest CO5

• CO27.9 km
• CO38.1 km
• CO19.4 km
• CM911.7 km
• CO612.3 km
• CM812.5 km
• CO412.5 km
• CO714.9 km
• CM017.1 km
• CO817.9 km
• CM7719.0 km
• CM319.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids