Bangsar is a residential suburb on the outskirts of Kuala Lumpur, lying about 4 kilometres (2.5 mi) south-west of the city centre. It is part of the Lembah Pantai parliamentary constituency. Bangsar is administered by Dewan Bandaraya Kuala Lumpur (DBKL), unlike other townships in the Klang Valley such as Petaling Jaya and Subang Jaya which have their municipal councils. Neighbourhood residents' associations and business councils play a part in communicating with the local authority, but they exercise no legal or administrative power. Malays make up most of the population at 61%, followed by the Chinese at 24%, Indians at 15%.

Kuala Lumpur, officially the Federal Territory of Kuala Lumpur and colloquially referred to as KL, is a federal territory and the capital city of Malaysia. It is the largest city in the country, covering an area of 243 km2 (94 sq mi) with a census population of 2,163,000 as of 2022. Greater Kuala Lumpur, also known as the Klang Valley, is an urban agglomeration of 8.622 million people as of 2023. It is among the fastest growing metropolitan regions in Southeast Asia, both in population and economic development. Klang Valley is ASEAN's fifth largest economy after Singapore, Jakarta, Bangkok, and Manila.