The CM20 3 Harlow Postcode Sector
The CM20 3 postcode sector is within the county of Essex in the East of England.
CM20 3 is a postcode sector within the CM20 postcode district which is within the CM Chelmsford postcode area.
The Royal Mail delivery office for the CM20 3 postal sector is the Harlow Delivery Office.
The area of the CM20 3 postcode sector is 0.98 square miles which is 2.54 square kilometres or 628.62 square acres.
Map of the CM20 3 Postcode Sector
Explore the cm20 3 postcode sector by using our free interactive map.