The HP22 4 postcode sector stands on the Buckinghamshire and Hertfordshire border in the South East of England.
HP22 4 is a postcode sector within the HP22 postcode district which is within the HP Hemel Hempstead postcode area.
The Royal Mail delivery office for the HP22 4 postal sector is the Aylesbury Vale Postal Delivery Office.
The area of the HP22 4 postcode sector is 28.34 square miles which is 73.41 square kilometres or 18,139.26 square acres.
Waterways within the HP22 4 postcode sector include the Thistle Brook.
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