CO3 is located in the county of
Colchester, Essex · England
Essex is a ceremonial county in England. As a ceremonial county, it is headed by a Lord Lieutenant who serves as the Sovereign's representative.
When asked for your county on official forms (passport applications, DVLA, HMRC), enter Essex. This is the ceremonial/geographic county for postcode CO3.
Your council tax is collected by Colchester, which is the local authority within Essex. Contact your local council for billing enquiries.
Royal Mail considers the county optional in postal addresses — the postcode is sufficient for delivery. However, many forms and databases still require a county. For CO3, use Essex.
Postcode CO3 is in Colchester, which is the local authority (council) that provides your day-to-day services such as waste collection, planning permission, and housing. Colchester sits within the ceremonial county of Essex, which is the geographic county used on official forms, passport applications, and formal addresses.
In short: Colchester is your council; Essex is your county. When forms ask for "county", enter Essex.
CO3 is in Essex, England.
CO3 is in Colchester.
For postcode CO3, enter Essex as your county on official forms, passport applications, and formal addresses.
Postcode CO3 is served by Colchester, a local authority within Essex. Contact them for council tax, planning, and local services.
Yes. Royal Mail states that the postcode is the essential element for delivery — county is not required. However, including Essex can help if the postcode is unclear or on forms that require it.
Essex is a ceremonial county, one of 46 ceremonial counties in England headed by a Lord Lieutenant.