Yankton County, South Dakota facts for kids

Kids Encyclopedia Facts
Yankton County, South Dakota
Map
Map of South Dakota highlighting Yankton County
Location in the state of South Dakota
Map of the USA highlighting South Dakota
South Dakota's location in the U.S.
Statistics
Founded April 10, 1862
Seat Yankton
Largest City Yankton
Area
 - Total
 - Land
 - Water

532 sq mi (1,378 km²)
521 sq mi (1,349 km²)
11 sq mi (28 km²), 2.1%
PopulationEst.
 - (2015)
 - Density

22,702
43/sq mi (17/km²)
Time zone Central: UTC-6/-5
Website: www.co.yankton.sd.us
Named for: Yankton Sioux

Yankton County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 22,438. Its county seat is Yankton.

Yankton County comprises the Yankton, SD Micropolitan Statistical Area.

Geography

According to the U.S. Census Bureau, the county has a total area of 532 square miles (1,380 km2), of which 521 square miles (1,350 km2) is land and 11 square miles (28 km2) (2.1%) is water. It is bordered by the Missouri River.

Major highways

  • US 81.svg U.S. Highway 81
  • SD 46.svg South Dakota Highway 46
  • SD 50.svg South Dakota Highway 50
  • SD 52.svg South Dakota Highway 52
  • SD 153.svg South Dakota Highway 153
  • SD 314.svg South Dakota Highway 314

Adjacent counties

National protected area

  • Missouri National Recreational River (part)

Demographics

Historical population
Census Pop.
1870 2,097
1880 8,390 300.1%
1890 10,414 24.1%
1900 12,649 21.5%
1910 13,135 3.8%
1920 15,233 16.0%
1930 16,589 8.9%
1940 16,725 0.8%
1950 16,804 0.5%
1960 17,551 4.4%
1970 19,039 8.5%
1980 18,952 −0.5%
1990 19,252 1.6%
2000 21,652 12.5%
2010 22,438 3.6%
Est. 2016 22,616 0.8%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2015

2000 census

As of the census of 2000, there were 21,652 people, 8,187 households, and 5,403 families residing in the county. The population density was 42 people per square mile (16/km²). There were 8,840 housing units at an average density of 17 per square mile (7/km²). The racial makeup of the county is 95.10% White, 1.16% African American, 1.63% Native American, 0.42% Asian, 0.02% Pacific Islander, 0.74% from other races, and 0.91% from two or more races. 1.82% of the population are Hispanic or Latino of any race.

There were 8,187 households out of which 33.00% had children under the age of 18 living with them, 54.40% were married couples living together, 8.30% had a female householder with no husband present, and 34.00% were non-families. 29.30% of all households were made up of individuals and 12.00% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 3.03.

In the county, the population was spread out with 25.70% under the age of 18, 8.70% from 18 to 24, 29.00% from 25 to 44, 22.00% from 45 to 64, and 14.60% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 101.90 males. For every 100 females age 18 and over, there were 101.30 males.

The median income for a household in the county was $35,374, and the median income for a family was $43,600. Males had a median income of $29,010 versus $20,686 for females. The per capita income for the county was $17,312. About 6.60% of families and 9.60% of the population were below the poverty line, including 10.00% of those under age 18 and 9.00% of those age 65 or over.

2010 census

As of the 2010 United States Census, there were 22,438 people, 8,770 households, and 5,476 families residing in the county. The population density was 43.1 inhabitants per square mile (16.6/km2). There were 9,652 housing units at an average density of 18.5 per square mile (7.1/km2). The racial makeup of the county was 92.8% white, 2.5% American Indian, 1.5% black or African American, 0.5% Asian, 1.1% from other races, and 1.4% from two or more races. Those of Hispanic or Latino origin made up 2.7% of the population. In terms of ancestry,

Of the 8,770 households, 29.2% had children under the age of 18 living with them, 50.1% were married couples living together, 8.8% had a female householder with no husband present, 37.6% were non-families, and 32.0% of all households were made up of individuals. The average household size was 2.30 and the average family size was 2.90. The median age was 41.3 years.

The median income for a household in the county was $47,124 and the median income for a family was $62,070. Males had a median income of $37,637 versus $29,488 for females. The per capita income for the county was $24,776. About 5.0% of families and 11.2% of the population were below the poverty line, including 10.7% of those under age 18 and 13.5% of those age 65 or over.

Communities

Cities

Towns

Townships

The county is divided into nine townships:

  • Gayville
  • Jamesville
  • Marindahl
  • Mayfield
  • Mission Hill
  • Turkey Valley
  • Utica
  • Volin
  • Walshtown

Unorganized territories

The county contains two areas of unorganized territory: Southeast Yankton and West Yankton.


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