Hulu Langat is a district and also a parliamentary constituency located between Kuala Lumpur and Putrajaya. Being located in the southeast corridor of the Klang Valley, it is quietly booming. The constituency encompasses the Kajang, Semenyih and Dusun Tua state seats.

Hulu Langat is the fifth largest district in Selangor State with an area of 840 square kilometres and a population of 1,141,880 at the 2010 Census (provisional result). It has a mix of urban and rural settlements with a majority of the population settling in towns near Kuala Lumpur. These population centers, such as Cheras and Ampang effectively became suburbs of the greater metropolitan area (both Cheras and Ampang are communities now divided administratively between Kuala Lumpur Federal Territory and Selangor State).

City folks who want some peace and quiet away from the rat race in Kuala Lumpur are investing in properties here and settling down in new townships such as Bandar Sungai Long and Sunway Semenyih.

According to the Population and Housing Census Malaysia 2000, Hulu Langat's population increased from 177,900 in 1980 to 413,900 in 1991 and 864,451 in 2000 and 1,141,880 in 2010. Malays make up 53%, followed by the Chinese (36.5%), Indians (9.7%) and others (0.8%).