District 1 is the central urban district of Ho Chi Minh City (Saigon), the largest city in Vietnam. With a total area of 7.7211 km2 (2.9811 sq mi) the district has a population of 204,899 people as of 2010. The district is divided into 10 small subsets which are called wards (phường). District 1 contains most of the city's administrative offices, consulates, and large buildings. District 1 is the busiest district in the city with the highest living standards. Đồng Khởi Street and Nguyễn Huệ Boulevard in District 1 are the city's two main commercial centers. Đồng Khởi street is an area in high demand for real estate, hitting a record price of $50,000 per square meter in 2007.

Ho Chi Minh City, commonly known as Saigon, is the most populous city in Vietnam, with a population of around 9.3 million in 2023. The city's geography is defined by rivers and canals, of which the eponymously-named Saigon River is the largest. As a municipality, Ho Chi Minh City consists of 16 urban districts, five rural districts, and one municipal city (sub-city). As the largest financial centre in Vietnam, Ho Chi Minh City has the highest gross regional domestic product out of all Vietnam provinces and municipalities, contributing around a quarter of the country's total GDP. Ho Chi Minh City's metropolitan area is ASEAN's 6th largest economy, also the biggest outside an ASEAN country capital.