The HA4 7 postcode sector is within the county of Greater London in the Greater London area of England..
HA4 7 is a postcode sector within the HA4 postcode district which is within the HA Harrow postcode area.
The Royal Mail delivery office for the HA4 7 postal sector is the Ruislip Delivery Office.
The area of the HA4 7 postcode sector is 1.68 square miles which is 4.35 square kilometres or 1,075.93 square acres.
Waterways within the HA4 7 postcode sector include the River Pinn.
The HA4 7 postcode sector is crossed by a railway.
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