Dewey County, South Dakota

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| Settlement Type | U.S. county |
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| Total | 5301 |
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Dewey County is a county located in the state of South Dakota. As of the 2020 census, the population was 5,301. The county seat is Timber Lake. The county was created in 1883 and named for William P. Dewey, a territorial surveyor-general.
Geography[edit]
According to the United States Census Bureau, the county has a total area of 2,445 square miles (6,330 km²), of which 2,302 square miles (5,960 km²) is land and 143 square miles (370 km²) (5.9%) is water.
Adjacent counties[edit]
- Corson County (north)
- Ziebach County (east)
- Haakon County (southeast)
- Stanley County (south)
- Sully County (south)
- Potter County (southwest)
- Walworth County (west)
Major highways[edit]
Demographics[edit]
As of the 2020 census, there were 5,301 people, 1,678 households, and 1,278 families residing in the county. The population density was 2.3 inhabitants per square mile (0.89/km²). There were 2,000 housing units at an average density of 0.87 per square mile (0.34/km²).
Communities[edit]
City[edit]
Towns[edit]
- Eagle Butte (partly in Ziebach County)
Unincorporated communities[edit]
Politics[edit]
Dewey County is known for its political leanings, often voting for the Democratic Party in national elections. The county's political landscape is influenced by its significant Native American population, particularly members of the Cheyenne River Sioux Tribe.
See also[edit]
- List of counties in South Dakota
- National Register of Historic Places listings in Dewey County, South Dakota
References[edit]
External links[edit]

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