Authenticité (Zaire) banned all outside Christian religious groups, requiring those who would function in Zaire to become part of one of four recognized umbrella groups. The four were: the Kimbanguist Church (a syncretic church of Zairian origin), the Catholic Church, the Orthodox Churches, and "Les Églises du Christ au Zaire" (ECZ, now Church of Christ in Congo), which covered most of the Protestant confessions. All others were declared illegal. The various Protestant churches had to affiliate with the last of these as communities within the ECZ in Zaire. At the time there were numerous local sects and church groups which had sprung
Zaire Province national language spoken in the province is Kikongo and the predominant ethnic group in the region is Bakongo. According to preliminary data from the General Census of Population and Housing conducted in May 2014, Zaire Province has currently 567,225 inhabitants, corresponding to 2.3 percent of the Angolan population. In this province, reside 285,333 women and 281,892 men, with 26.1% of the population living in rural areas and the majority, 73.9%, living in urban areas. The data also point to a population density of . Zaire Provincial Government consists of Governor José Joana André, and 3 Deputy Governors. Ângela Maria Botelho