Gann Valley is a

census-designated place A census-designated place (CDP) is a Place (United States Census Bureau), concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counte ...

in and the

county seat A county seat is an administrative center, seat of government, or capital city of a county or parish (administrative division), civil parish. The term is in use in five countries: Canada, China, Hungary, Romania, and the United States. An equiva ...

of Buffalo County, South Dakota, United States. The town had a population of 10 as of the 2020 census. It is the smallest unincorporated county seat in the United States.

History

The community was founded in 1885 by Herst Gann in a valley on Crow Creek just east of the

Crow Creek Reservation The Crow Creek Indian Reservation (, '), home to Crow Creek Sioux Tribe ( or Húŋkpathi Oyáte) is located in parts of Buffalo, Hughes, and Hyde counties on the east bank of the Missouri River in central South Dakota in the United States. ...

. Gann donated the courthouse in the community and A.L. Spencer donated 30 acres, resulting in the community becoming the county seat. In 1886 the county seat was moved to Buffalo Center but was moved back to Gann in 1888. The

center of population In Demography, demographics, the center of population (or population center) of a region is a geographical point that describes a centerpoint of the region's population. There are several ways of defining such a "center point", leading to dif ...

of South Dakota is located in Gann Valley. Gann Valley holds the record for the highest temperature in South Dakota, at .

Climate

This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. According to the

Köppen climate classification The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (te ...

system, Gann Valley has a

humid continental climate A humid continental climate is a climatic region defined by Russo-German climatologist Wladimir Köppen in 1900, typified by four distinct seasons and large seasonal temperature differences, with warm to hot (and often humid) summers, and cold ...

Demographics

References

{{Authority control Census-designated places in Buffalo County, South Dakota Census-designated places in South Dakota County seats in South Dakota Populated places established in 1885 1885 establishments in Dakota Territory

History

Climate

Demographics

See also

References