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Bon Homme County, South Dakota facts for kids

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Bon Homme County
Bon Homme County courthouse
Map of South Dakota highlighting Bon Homme County
Location within the U.S. state of South Dakota
Map of the United States highlighting South Dakota
South Dakota's location within the U.S.
Country  United States
State  South Dakota
Founded April 5, 1862
Named for Bon Homme Island
Seat Tyndall
Largest city Springfield
Area
 • Total 582 sq mi (1,510 km2)
 • Land 564 sq mi (1,460 km2)
 • Water 18 sq mi (50 km2)  3.1%
Population
 (2020)
 • Total 7,003
 • Estimate 
(2021)
7,014 Increase
 • Density 12.033/sq mi (4.646/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district At-large

Bon Homme County (pronounced BAHN'-uhm) is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 7,003. Its county seat is Tyndall.

Geography

According to the U.S. Census Bureau, the county has a total area of 582 square miles (1,510 km2), of which 564 square miles (1,460 km2) is land and 18 square miles (47 km2) (3.1%) is water.

Major highways

  • SD 25.svg South Dakota Highway 25
  • SD 37.svg South Dakota Highway 37
  • SD 46.svg South Dakota Highway 46
  • SD 50.svg South Dakota Highway 50
  • SD 52.svg South Dakota Highway 52

Adjacent counties

National protected area

  • Missouri National Recreational River (part)

Demographics

Historical population
Census Pop.
1870 608
1880 5,468 799.3%
1890 9,057 65.6%
1900 10,379 14.6%
1910 11,061 6.6%
1920 11,940 7.9%
1930 11,737 −1.7%
1940 10,241 −12.7%
1950 9,440 −7.8%
1960 9,229 −2.2%
1970 8,577 −7.1%
1980 8,059 −6.0%
1990 7,089 −12.0%
2000 7,260 2.4%
2010 7,070 −2.6%
2020 7,003 −0.9%
2021 (est.) 7,014 −0.8%
US Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020

2010 census

As of the 2010 United States Census, there were 7,070 people, 2,457 households, and 1,572 families in the county. The population density was 12.5 inhabitants per square mile (4.8/km2). There were 2,931 housing units at an average density of 5.2 per square mile (2.0/km2). The racial makeup of the county was 89.8% white, 7.1% American Indian, 1.0% black or African American, 0.1% Asian, 0.6% from other races, and 1.4% from two or more races. Those of Hispanic or Latino origin made up 1.8% of the population. In terms of ancestry, 48.6% were German, 20.6% were Czech, 11.7% were Dutch, 7.8% were Irish, 6.1% were Norwegian, and 1.7% were American.

Of the 2,457 households, 25.6% had children under the age of 18 living with them, 55.7% were married couples living together, 5.5% had a female householder with no husband present, 36.0% were non-families, and 32.8% of all households were made up of individuals. The average household size was 2.24 and the average family size was 2.84. The median age was 43.1 years.

The median income for a household in the county was $41,107 and the median income for a family was $51,910. Males had a median income of $34,478 versus $28,464 for females. The per capita income for the county was $20,074. About 10.1% of families and 12.4% of the population were below the poverty line, including 16.7% of those under age 18 and 12.6% of those age 65 or over.

Communities

Cities

Town

Census-designated place

Unincorporated communities

Townships

The county is divided into four areas of unorganized territory: Northeast Bon Homme, Northwest Bon Homme, Southeast Bon Homme, Southwest Bon Homme.

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