Má»Âc Hóa is a rural district (huyá»Ân) of Long An province in the Mekong Delta region of Vietnam.
In 1963 team A-414 Special Forces set up operations at Kien Tuong. In 1965 Seabee team 0503 upgraded the outpost to a B camp for team B-41. In 1966 the camp became home to the Mobile Strike Force(Mike Force) for IV Corps. MACV-SOG ran reconnaissance missions into Cambodia from there and the RVN army took over the base in 1970.
Since 2013, the district has been divided into seven communes:
In 2003 the district had a population of 67,753 and covered an area of . The district capital was at the town also known as Má»Âc Hóa. In 2013, the town of Má»Âc Hóa and the nearby communes of Bình Hiá»Âp, Bình Tân, , Thạnh Trá» and Tuyên Thạnh were separated to create the district-level town of Kiến Tðá»Âng. The headquarters of the new Má»Âc Hóa District were moved to Bình Phong Thạnh.