Provo, South DakotaProvo is an unincorporated community and census-designated place in Fall River County, South Dakota, United States. The population was 10 at the 2020 census.HistoryA post office called Provo was established in 1904. The community's name is derived from Bill Provost Sr., an early resident.EducationThe school district is Edgemont School District 23-1.