District 11 was assembled from villages that bordered Chợ Lớn on its northern edge — close enough to inherit a strong Chinese community, distinct enough to develop its own landmarks.
Under French administration, the area is grouped into Hạt 20, an administrative unit whose villages — Bình Thới, Hòa Hưng, Minh Phụng, Phú Lâm, Tân Hóa, Tân Phước, Tân Thành — border the city of Chợ Lớn directly.
The Phú Thọ racetrack opens on a 48-hectare site — see Anecdotes, below, for what the land had been used for previously.
District 11 is formally established under the Republic of Vietnam's Saigon Capital administration, carved from land split off District 5 and District 6, with four founding wards: Phú Thọ, Bình Thới, Cầu Tre and Phú Thọ Hòa.
Two more wards, Bình Thạnh and Phú Thạnh, are added, bringing the district to six wards by the time of reunification in 1975.
Following a call from city authorities, tens of thousands of workers from across Ho Chi Minh City are mobilized to dredge and replant a derelict marshland once used for growing lotus — the beginning of what will become Đầm Sen Park; see Anecdotes, below.
The reclaimed lotus marsh officially opens as Đầm Sen Cultural Park, developed further in later decades into one of the city's largest amusement and water parks.
The Phú Thọ Sports Complex, including a modern indoor arena, is built adjacent to the old racetrack grounds; the racetrack itself, Vietnam's last operating horse-racing venue, closes permanently in May 2011.
A citywide ward reform redraws District 11's internal boundaries once more, part of a broader restructuring across the city.