Dewey County, South Dakota
County in South Dakota, United States / From Wikipedia, the free encyclopedia
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This article is about the county in South Dakota. For the unincorporated town of Dewey, South Dakota, in Custer County, see Dewey, South Dakota.
Dewey County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 5,239.[1] Its county seat is Timber Lake.[2] The county was created in 1883 and organized in 1910.[3] It was named for William P. Dewey,[4] Territorial surveyor-general from 1873 to 1877.
Quick Facts Country, State ...
Dewey County | |
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Coordinates: 45°10′N 100°53′W | |
Country | United States |
State | South Dakota |
Founded | 1883 (created) 1910 (organized) |
Named for | William P. Dewey |
Seat | Timber Lake |
Largest community | North Eagle Butte |
Area | |
• Total | 2,445 sq mi (6,330 km2) |
• Land | 2,302 sq mi (5,960 km2) |
• Water | 143 sq mi (370 km2) 5.8% |
Population (2020) | |
• Total | 5,239 |
• Estimate (2023) | 5,208 |
• Density | 2.1/sq mi (0.83/km2) |
Time zone | UTC−7 (Mountain) |
• Summer (DST) | UTC−6 (MDT) |
Congressional district | At-large |
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Almost the entire county lies in the Cheyenne River Indian Reservation. The balance of the county, along its extreme northern county line, lies in the Standing Rock Indian Reservation. It is one of five South Dakota counties that are contained within Indian reservations.