London is a region of England which contains the ceremonial counties of Greater London and the City of London. The county of Greater London is bordered by Hertfordshire to the north, Essex to the north-east, Kent to the south-east, Surrey to the south, and Berkshire and Buckinghamshire to the west. It surrounds the City of London. Greater London has an area of 1,569 km2 (606 sq mi) and a population of 8,889,375. It is almost entirely urbanised and contains the majority of the Greater London Built-up area, which extends into Hertfordshire, Essex, Kent, Surrey, and Berkshire and has a population of 9,787,426. The City of London has an area of 2.9 km2 (1.12 sq mi) and a population of 8,583, making the London region only slightly larger and more populous than Greater London. Greater London is governed by thirty-two London boroughs, and the City of London by a unique corporation. The Greater London Authority is responsible for strategic local government across the region. The region does not hold city status, but the districts of the City of London and City of Westminster do. Greater London was historically part of Middlesex, Essex, Surrey, Kent and Hertfordshire. (Source: Wikipedia.org, CC BY-SA)