The SG3 postcode district is a postal district with a population of 7,068 and is within the SG Stevenage postcode area.
The area of the SG3 postcode district is 5.68 square miles which is 14.71 square kilometres or 3,633.94 acres.
There are 1 postcode sectors within the SG3 district.
|Postcode Sector||Delivery Office|
|SG3 6||Knebworth Scale Payment Delivery Office|