The HP12 4 postcode sector is within the county of Buckinghamshire in the South East of England.
HP12 4 is a postcode sector within the HP12 postcode district which is within the HP Hemel Hempstead postcode area.
The Royal Mail delivery office for the HP12 4 postal sector is the High Wycombe South Postal Delivery Office.
The area of the HP12 4 postcode sector is 3.00 square miles which is 7.77 square kilometres or 1,920.28 square acres.
The HP12 4 postcode sector is crossed by the M40 motorway.
Waterways within the HP12 4 postcode sector include the River Wye.
The HP12 4 postcode sector is crossed by a railway.
The Chilterns area of outstanding natural beauty covers part of the HP12 4 postcode district.
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