The CM3 1 Great Leighs Postcode Sector
The CM3 1 postcode sector is within the county of Essex in the East of England.
CM3 1 is a postcode sector within the CM3 postcode district which is within the CM Chelmsford postcode area.
The Royal Mail delivery office for the CM3 1 postal sector is the Chelmsford Delivery Office.
The area of the CM3 1 postcode sector is 21.03 square miles which is 54.48 square kilometres or 13,461.37 square acres.
Map of the CM3 1 Postcode Sector
Explore the cm3 1 postcode sector by using our free interactive map.