Charles Mix County, South Dakota

Charles Mix County
Charles Mix County
County
	Charles Mix County Courthouse in Lake Andes
	Location within the U.S. state of South Dakota
	South Dakota's location within the U.S.
	Coordinates: 43°13′N 98°35′W / 43.21°N 98.59°W
Country	United States
State	South Dakota
Founded	1862 (created); 1879 (organized)
Named for	Charles Eli Mix
Seat	Lake Andes
Largest city	Wagner
Area
• Total	1,150 sq mi (3,000 km2)
• Land	1,097 sq mi (2,840 km2)
• Water	53 sq mi (140 km2) 4.6%
Population (2020)
• Total	9,373
• Estimate (2023)	9,240
• Density	8.2/sq mi (3.1/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	At-large
Website	charlesmix.sdcounties.org

Charles Mix County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 9,373.^[1] Its county seat is Lake Andes.^[2] The county was created in 1862 and organized in 1879.^[3] It was named for Charles Eli Mix, an official of the Bureau of Indian Affairs influential in signing a peace treaty with the local Lakota Indian tribes.^[4] The easternmost approximately 60% of the county comprises the Yankton Indian Reservation.

The Papineau Trading Post, whose building is now in Geddes, South Dakota, was an early county seat.^[5] Geddes tried to wrest the county seat from Wheeler in 1900, 1904, and 1908.^[6] The Charles Mix County Courthouse in Lake Andes was built in 1918.^[6]

^ "State & County QuickFacts". United States Census Bureau. Retrieved March 21, 2024.
^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
^ "Dakota Territory, South Dakota, and North Dakota: Individual County Chronologies". Dakota Territory Atlas of Historical County Boundaries. The Newberry Library. 2006. Archived from the original on April 2, 2018. Retrieved March 29, 2015.
^ Charles Mix County Archived June 9, 2010, at the Wayback Machine
^ J. Michael Peterson (March 26, 1973). "National Register of Historic Places Inventory/Nomination: Geddes Historic District". National Park Service. Retrieved August 1, 2022. With aerial photo from 1955 and others from c.1972
^ ^a ^b Mark Hufstetler; Lon Johnson (September 1, 1992). "National Register of Historic Places Registration: Charles Mix County Courthouse". National Park Service. Retrieved August 1, 2022. With 14 photos.