The HA4 postcode district is a postal district with a population of 50,175 and is within the HA postcode area.
The area of the HA4 postcode district is 6.11 square miles which is 15.81 square kilometres or 3,907.34 acres.
There are 5 postcode sectors within the HA4 district.
The sector has postcodes within the nation of England.
The HA4 Postcode District is in the Harrow and Hillingdon region of Outer London - West and North West within the London.
Explore the HA4 postcode district by using our free interactive map.
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We found 4 hotels and guest houses within the HA4 postcode area
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