South Vietnamese Constitutional Assembly election, 1966

Electoral system

The electoral system used the provinces of South Vietnam as districts. Each province was one district, except the city of Saigon, which was divided into three districts, and Gia Định, which was divided into two districts. Provinces that elected more than one member used proportional representation with seats allocated using the d'Hondt method, while provinces that only elected one member used the first-past-the-post system.