Reformed Church in Zambia rapidly. In the late 1950s eleven congregations with 3,300 members were in Zambia. Since 1982 it extended its mission work into Eastern Province, Luapula Province, Northern, Central and Northwest Zambia. The denomination was an Afrikaans church, but English service were introduced in the early 1990s. By 2000 the Reformed Church in Zambia covers all Province of the country. In 1996 the Reformed Church in Zambia formed. It had more than 500,000 members in 154 congregations, and 102 pastors, 39 evangelists in 16 presbyteries. The official languages are English, Nyanja, Chewa, Ngoni, Nsenga, Chichewa and Chewa. The Reformed Church is a
Tonga language (Zambia and Zimbabwe) zone N15, is not particularly close to Zambian Tonga, which is classified as zone M64, and can be considered a separate language. The Tonga-speaking inhabitants are the oldest Bantu settlers, with the Tumbuka, a small ethnic group in the east, in what is now known as Zambia. There are two distinctive dialects of Tonga; Valley Tonga and Plateau Tonga. Valley Tonga is mostly spoken in the Zambezi valley and southern areas of the Batonga (Tonga people) while Plateau Tonga is spoken more around Monze District and the northern areas of the Batonga. Tonga (Chitonga or iciTonga) developed as a spoken