The NN1 3 postcode sector is within the county of Northamptonshire in the East Midlands region of England..
NN1 3 is a postcode sector within the NN1 postcode district which is within the NN Northampton postcode area.
The Royal Mail delivery office for the NN1 3 postal sector is the Northampton Central Delivery Office.
The area of the NN1 3 postcode sector is 0.25 square miles which is 0.66 square kilometres or 162.65 square acres.
Explore the nn1 3 postcode sector by using our free interactive map.
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