Poso Regency is a regency of Central Sulawesi Province of Indonesia. It covers an area of 7,112.25 km2, and had a population of 209,228 at the 2010 Census and 244,875 at the 2020 Census; the official estimate as at mid 2021 was 248,345. The principal town lies at Poso. History In 1999, Morowali Regency and Tojo Una-Una Regency were created out of eastern portions of Poso Regency. In 2007 there were calls to divide the remaining Poso Regency into two regencies to overcome religious-based conflicts; one new regency in the southeastern and western sectors would by named Tentena Regency (comprising the first twelve kecamatan listed below), while the residual Poso Regency in the northeast sector (bordering the Gulf of Tomini) would consist of the last seven kecamatan listed below Administrative districts At the time of the 2010 Census, the Poso Regency was divided at 2010 into eighteen districts (kecamatan), but an additional 19th district (Pamona Pusalemba) was subsequently added by splitting off the western and southern villages of Pamona Utara District. The districts are tabulated below with their areas and their populations at the 2010 Census and the 2020 Census, together with the official estimates as at mid 2021. The table also includes the locations of the district administrative centres, the numbers of villages in each district (totalling 142 rural desa and 28 urban kelurahan), and its postal code. Notes: (a) including 3 urban kelurahan. (b) all urban kelurahan. Social Religions Poso District Religious Office noted that the majority of the population in Poso is Protestant, with the number of adherents as many as 122,389 inhabitants. This is followed by 95,417 Muslims, 9,739 Hindus, 1,425 Roman Catholics and 267 Buddhists, respectively. The number of places of worship in Poso, consisting of 270 mosques, 500 Protestant churches, 36 Catholic churches and 71 temples. Islam is the first religion which spread widely in Poso. Although the process is not known, Islam certainly been entered in Poso around the end of the 18th century. The migration of Mandar tribe of western Sulawesi region also proved influential in this process. This process culminated in the events in which Mandar people living in the area of Kadombuku (now Lage), forcing the local tribal people to convert to Islam and end up with a series of tribal wars between Mandar and Kadombuku. Christianity began to spread in the late 19th century, when a Dutch missionary, Albert