Unincorporated community in South Dakota, United States
| Gann Valley | |
|---|---|
| Unincorporated community | |
  Gann ValleyLocation within the state of South DakotaShow map of South Dakota Gann ValleyGann Valley (the United States)Show map of the United States | |
| Coordinates: 44°02′01″N 98°59′18″W / 44.03361°N 98.98833°W / 44.03361; -98.98833 | |
| Country | United States |
| State | South Dakota |
| County | Buffalo |
| Founded | 1885 |
| Area | |
| • Total | 0.08 sq mi (0.21 km) |
| • Land | 0.08 sq mi (0.21 km) |
| • Water | 0.00 sq mi (0.00 km) |
| Elevation | 1,716 ft (523 m) |
| Population | |
| • Total | 10 |
| • Density | 126.58/sq mi (48.68/km) |
| Time zone | UTC-6 (Central (CST)) |
| • Summer (DST) | UTC-5 (CDT) |
| ZIP codes | 57341 |
| Area code | 605 |
| FIPS code | 46-23421 |
| GNIS feature ID | 2584554 |
| Website | http://www.gannvalley.com/ |
Gann Valley is a census-designated place in and the county seat 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. 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 of South Dakota is located in Gann Valley. Gann Valley holds the record for the highest temperature in South Dakota, at 120 °F (49 °C).
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 system, Gann Valley has a humid continental climate.
Demographics
| Census | Pop. | Note | %± |
|---|---|---|---|
| 2010 | 14 | — | |
| 2020 | 10 | −28.6% | |
| 2021 (est.) | 12 | 20.0% | |
| U.S. Decennial Census | |||
See also
References
- "ArcGIS REST Services Directory". United States Census Bureau. Retrieved October 15, 2022.
- ^ U.S. Geological Survey Geographic Names Information System: Gann Valley, South Dakota
- "Census Population API". United States Census Bureau. Retrieved October 15, 2022.
- "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- "Smallest county seat in US now in Gann Valley". Mitchell Daily Republic. July 26, 2013. Archived from the original on July 28, 2018. Retrieved September 19, 2018.
- "Gann Valley, South Dakota - South Dakota Travel Map - SD Highway 34 Tour Guide - Gann Valley History & Trivia". Archived from the original on September 14, 2013. Retrieved July 27, 2013.
- Federal Writers' Project (1940). South Dakota place-names, v.1-3. University of South Dakota. p. 38.
- Wenzel, Craig (July 27, 2010). "Gann Valley turns 125 this weekend". True Dakotan. Archived from the original on July 27, 2013. Retrieved July 27, 2013.
- "Population and Population Centers by State - 2000". United States Census Bureau. Archived from the original on July 5, 2013. Retrieved February 25, 2008.
- "July, 2006 Record Heat". National Weather Service Weather Forecast Office. Archived from the original on March 8, 2012. Retrieved October 23, 2012.
- "Gann Valley, South Dakota Köppen Climate Classification". Weatherbase. Archived from the original on February 2, 2017. Retrieved September 19, 2018.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2016.
| Municipalities and communities of Buffalo County, South Dakota, United States | ||
|---|---|---|
| County seat: Gann Valley | ||
| CDPs |  | |
| Township | ||
| Unorganized territories | ||
| Indian reservation | ||
| Footnotes | ‡This populated place also has portions in an adjacent county or counties | |