The district of Petaling was established on 1 February 1974, the same day Kuala Lumpur was declared a Federal Territory. This district is located in the middle of the Klang Valley adjacent to the capital and thus has experienced tremendous urbanisation. Some of the original forests remain in the Bukit Cherakah Forest Reserve (including the National Botanic Gardens), Kota Damansara Community Forest Park and Bukit Gasing. During the 1991 census, it recorded 633,165 people. In the official 2010 census, it recorded 1,660,869 people. (exclude foreign) It covers some 484.32 km² in area. The urban centres are divided into the cities of Shah Alam, Petaling Jaya and Subang Jaya . However, there are numerous town subdivisions, old subdistrict administrations (mukim), all of which share the same names like Damansara, Subang, and Petaling, which add much to the administrative confusion along with the rapid growth. Some five types of subdivisions exist for Petaling District, namely the re-organized municipal council majlis, the majlis subdivisions, the community names (also known as townships), electoral constituencies, and the subdivisions ("mukim").