Butte County is a

county A county () is a geographic region of a country used for administrative or other purposesL. Brookes (ed.) '' Chambers Dictionary''. Edinburgh: Chambers Harrap Publishers Ltd, 2005. in some nations. The term is derived from the Old French denoti ...

in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

South Dakota South Dakota (; Sioux language, Sioux: , ) is a U.S. state, state in the West North Central states, North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Dakota people, Dakota Sioux ...

. As of the 2020 census, the population was 10,243. Its

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 ...

is Belle Fourche. The county was established in the

Dakota Territory The Territory of Dakota was an organized incorporated territory of the United States that existed from March 2, 1861, until November 2, 1889, when the final extent of the reduced territory was split and admitted to the Union as the states of ...

on March 2, 1883, and given the descriptive name based on the French word for a hill.

History

Prehistory

In 1975,

plesiosaur The Plesiosauria or plesiosaurs are an Order (biology), order or clade of extinct Mesozoic marine reptiles, belonging to the Sauropterygia. Plesiosaurs first appeared in the latest Triassic Period (geology), Period, possibly in the Rhaetian st ...

fossils dating to the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...

Period (ca. 110 million years ago) were discovered in Butte County. In the 1980s, a 90-million-year-old fossil of a clawless

lobster Lobsters are Malacostraca, malacostracans Decapoda, decapod crustaceans of the family (biology), family Nephropidae or its Synonym (taxonomy), synonym Homaridae. They have long bodies with muscular tails and live in crevices or burrows on th ...

was discovered. A ''Tyrannosaurus rex'' skeleton was found in 1981. The early human history of the Belle Fourche River Valley has been traced to about 3000 BC. The first people of the area were Native Americans who resided on the northwestern plains of North America. The earliest known evidence of human activity in the area dates to the Middle Plains Archaic Period of the Plains Indians (ca. 3000–1500 BC). Traces of tipi rings dating from this period have been found. In 1979 and 1980, archeologists excavated a fortified and previously inhabited site west of Belle Fourche that dated to AD 1000. This site was called the Smiley-Evans Site and had been recorded in 1959. Until 1984, only 47 archaeological sites had been recorded, but after the excavation of the Smiley-Evans Site, several investigations were undertaken. , 199 archaeological sites had been discovered in the county.

Geography

Butte County lies on the west edge of South Dakota. Its northwestern boundary line abuts the eastern boundary line of the state of

Montana Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, an ...

, and its southwestern boundary line abuts the eastern boundary line of the state of

Wyoming Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...

. The Butte County terrain consists of semi-arid rolling hills cut by drainages oriented NW-SE. A relatively small portion of the area is dedicated to agriculture, including the employment of center pivot irrigation. The terrain slopes to the southeast, and its highest point is on the western boundary line near the SW corner: ASL. The county has a total area of , of which is land and (0.7%) is water.

Major highways

* U.S. Highway 85 * U.S. Highway 212 * South Dakota Highway 34 * South Dakota Highway 79 * South Dakota Highway 168

Adjacent counties

* Harding County - north * Perkins County - northeast * Meade County - southeast * Lawrence County - southwest * Crook County, Wyoming - west * Carter County, Montana - northwest

Protected areas

* Belle Fourche Dam State Game Production Area * Belle Fourche National Wildlife Refuge * Newell Lake State Game Production Area * Newell Lake State Lakeside Use Area * Rocky Point State Recreation Area

Demographics

2020 census

As of the 2020 census, there were 10,243 people, 4,196 households, and 2,760 families residing in the county. The

population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...

was . There were 4,673 housing units.

2010 census

As of the 2010 census, there were 10,110 people, 4,160 households, and 2,786 families in the county. The population density was . There were 4,621 housing units at an average density of . The racial makeup of the county was 94.2% white, 1.9% American Indian, 0.2% black or African American, 0.2% Asian, 0.1% Pacific islander, 0.8% from other races, and 2.6% from two or more races. Those of Hispanic or Latino origin made up 3.0% of the population. In terms of ancestry, 40.9% were German, 16.6% were Irish, 15.7% were Norwegian, 10.4% were English, and 5.2% were American. Of the 4,160 households, 30.5% had children under the age of 18 living with them, 52.3% were married couples living together, 9.8% had a female householder with no husband present, 33.0% were non-families, and 28.5% of all households were made up of individuals. The average household size was 2.40 and the average family size was 2.92. The median age was 41.1 years. The median income for a household in the county was $39,041 and the median income for a family was $52,829. Males had a median income of $37,429 versus $25,273 for females. The per capita income for the county was $20,418. About 11.5% of families and 15.6% of the population were below the

poverty line The poverty threshold, poverty limit, poverty line, or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for ...

, including 25.0% of those under age 18 and 8.9% of those age 65 or over.

Communities

Cities

* Belle Fourche (county seat) * Newell

Towns

* Fruitdale * Nisland

Census-designated place

Vale A vale is a type of valley. Vale may also refer to: Places Georgia * Vale, Georgia, a town in the Samtskhe-Javakheti region Norway * Våle, a historic municipality Portugal * Vale (Santa Maria da Feira), a former civil parish in the municip ...

Unincorporated communities

* Arpan * Castle Rock * East Butte * Hoover * Minnesela * West Butte''West Butte Unorganized Territory SD'' Google Maps (accessed January 31, 2019)
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Townships

* Union *

Politics

Like most of South Dakota, Butte County is a Republican stronghold. No Democratic presidential candidate has carried Butte County since

Franklin D. Roosevelt Franklin Delano Roosevelt (January 30, 1882April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving U.S. president, and the only one to have served ...

in 1932. Although Roosevelt in the following election and

Lyndon Johnson Lyndon Baines Johnson (; August 27, 1908January 22, 1973), also known as LBJ, was the 36th president of the United States, serving from 1963 to 1969. He became president after assassination of John F. Kennedy, the assassination of John F. Ken ...

1964 Events January * January 1 – The Federation of Rhodesia and Nyasaland is dissolved. * January 5 – In the first meeting between leaders of the Roman Catholic and Orthodox churches since the fifteenth century, Pope Paul VI and Patria ...

, respectively, came within six and fourteen votes of claiming the county during landslide Democratic victories, apart from these instances, no Democratic presidential candidate since 1920 has reached forty percent of the county's vote.

References

{{coord, 44.91, -103.49, display=title, type:adm2nd_region:US-SD_source:UScensus1990 1883 establishments in Dakota Territory Populated places established in 1883 es:Condado de Campbell (Dakota del Sur)