Harefield is located in the county of Greater London, London, two miles south of the town of Rickmansworth, five miles south-west of the major town of Watford, and 16 miles west of London. Harefield lies just south-west of the Hertfordshire border, and was historically in the county of Middlesex. Harefield falls within the London borough council of Hillingdon, under the Greater London Authority. It is in the UB9 postcode district. The post town for Harefield is Uxbridge.
Harefield is in the ceremonial county of Greater London, the historic county of Middlesex, and the administrative county of Greater London.
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Harefield is situated towards the northernmost extremity of Greater London, and towards the westernmost extremity of Greater London.
The nearest postcode to the centre of Harefield is UB9 6NR.
Harefield is situated towards the northernmost extremity of the UB9 postcode district, and roughly centrally between the easternmost and westernmost extremities of the UB9 postcode district.
The post town for Harefield is Uxbridge. Harefield is in the UB9 postcode district, which corresponds to the post town of Uxbridge.
The centre of Harefield is located at position 51.60439° latitude and -0.48185° longitude.
The centre of Harefield is located at the grid reference easting 505235 and northing 190598 within the British National Grid (OSGB36) system.
Position of Harefield relative to nearby towns. Distance is measured from the centre of Harefield to the centre of the town.
Position of Harefield relative to nearby cities. Distance is measured from the centre of Harefield to the centre of the city.