Bình Chánh's borders have shifted repeatedly across the 20th century, stitched together from cantons once split between two different provinces.
The land later forming Bình Chánh belongs to Tân Long and Bình Long districts of Tân Bình prefecture, plus part of Phước Lộc district of Tân An prefecture, all under Gia Định province — fertile ground long known for farming and traditional craft villages.
Chợ Lớn province is formally established under French colonial administration, encompassing the cantons that will later form Bình Chánh.
French forces launch a major assault on the Láng Le - Bàu Cò area, part of the Vườn Thơm - Bà Vụ resistance base; see Anecdotes, below.
Saigon authorities issue Decree 143/NV establishing Bình Chánh district under Gia Định province, formed from the dissolved cantons of Tân Phong Hạ, Long Hưng Thượng and Long Hưng Trung — the district takes its name from Bình Chánh commune, the site chosen as its administrative seat.
A memorial to the Láng Le - Bàu Cò battle is built by district authorities to honor those who fought and died there.
Following the Đổi Mới economic reforms, Bình Chánh urbanizes rapidly, its population climbing well past 700,000 as Saigon's southwestern edge fills in with industry and housing.
Bình Chánh district is dissolved as part of a citywide administrative reform, its former communes and market town reorganized into a smaller number of new communes.