CM21 is located in the county of
East Hertfordshire, Hertfordshire · England
Hertfordshire 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 Hertfordshire. This is the ceremonial/geographic county for postcode CM21.
Your council tax is collected by East Hertfordshire, which is the local authority within Hertfordshire. 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 CM21, use Hertfordshire.
Postcode CM21 is in East Hertfordshire, which is the local authority (council) that provides your day-to-day services such as waste collection, planning permission, and housing. East Hertfordshire sits within the ceremonial county of Hertfordshire, which is the geographic county used on official forms, passport applications, and formal addresses.
In short: East Hertfordshire is your council; Hertfordshire is your county. When forms ask for "county", enter Hertfordshire.
CM21 is in Hertfordshire, England.
CM21 is in East Hertfordshire.
For postcode CM21, enter Hertfordshire as your county on official forms, passport applications, and formal addresses.
Postcode CM21 is served by East Hertfordshire, a local authority within Hertfordshire. 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 Hertfordshire can help if the postcode is unclear or on forms that require it.
Hertfordshire is a ceremonial county, one of 46 ceremonial counties in England headed by a Lord Lieutenant.