It is located in the city of Kowloon and cut through by Boundary Street.

Kowloon City district covers about 1,000 hectares, and is mainly a residential area; most of its people live in private sector housing, including old tenement buildings, private residential developments and low-rise villas; the rest of them mainly live in public rental housing and the Home Ownership Scheme estates.

[5] It is the only district that incorporated into the land of Hong Kong in different stages (Convention of Peking, Convention for the Extension of Hong Kong Territory and the demolition of the Kowloon Walled City) The district includes many notable areas of Kowloon, such as Ho Man Tin, Hung Hom, Kai Tak Airport, Kowloon Tong, Ma Tau Wai, To Kwa Wan, and Whampoa Garden, and the proper Kowloon City, from where it derives its namesake.

Sung Wong Toi was a remarkable monument during that era.

In 1982, the Hong Kong Government decided to divide Hong Kong into 18 administrative districts, and Kowloon City and its neighbouring areas such as Hung Hom now belongs to Kowloon City district.