The SO21 1 Colden Common Postcode Sector
The SO21 1 postcode sector is within the county of Hampshire in the South East of England.
SO21 1 is a postcode sector within the SO21 postcode district which is within the SO Southampton postcode area.
The Royal Mail delivery office for the SO21 1 postal sector is the Winchester Delivery Office.
The area of the SO21 1 postcode sector is 34.78 square miles which is 90.09 square kilometres or 22,261.51 square acres.
The SO21 1 postcode sector is crossed by the South Western Main Line (SWML) railway.
Map of the SO21 1 Postcode Sector
Explore the so21 1 postcode sector by using our free interactive map.