The KA21 postcode district is a postal district with a population of and is within the KA Kilmarnock postcode area.
The area of the KA21 postcode district is 0.00 square miles which is 0.00 square kilometres or 0.00 acres.
There are 0 postcode sectors within the KA21 district.
|Postcode Sector||Delivery Office|
|KA21 5||Saltcoats Delivery Office|
|KA21 6||Saltcoats Delivery Office|