The NN4 9 postcode sector is within the county of Northamptonshire in the East Midlands region of England..
NN4 9 is a postcode sector within the NN4 postcode district which is within the NN Northampton postcode area.
The Royal Mail delivery office for the NN4 9 postal sector is the Northampton South Nn4b Delivery Office.
The area of the NN4 9 postcode sector is 2.65 square miles which is 6.86 square kilometres or 1,696.27 square acres.
Waterways within the NN4 9 postcode sector include the River Nene and Grand Union Northampton Arm
The NN4 9 postcode sector is crossed by a railway.
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