Clay County, South Dakota

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Clay County, South Dakota
VermilionSD ClayCountyCourthouse.jpg
Clay County Courthouse
Map of South Dakota highlighting Clay County
Location in the U.S. state of South Dakota
Map of the United States highlighting South Dakota
South Dakota's location in the U.S.
Founded 1862
Named for Henry Clay
Seat Vermillion
Largest city Vermillion
Area
 • Total 417 sq mi (1,080 km2)
 • Land 412 sq mi (1,067 km2)
 • Water 5.1 sq mi (13 km2), 1.2%
Population (est.)
 • (2015) 13,964
 • Density 34/sq mi (13/km²)
Congressional district At-large
Time zone Central: UTC-6/-5
Website www.claycountysd.org

Clay County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 13,864.[1] The county seat is Vermillion,[2] which is also home to the University of South Dakota. The county is named in honor of Henry Clay, American statesman, member of the United States Senate from Kentucky and United States Secretary of State in the 19th century.[3]

Clay County comprises the Vermillion, SD Micropolitan Statistical Area, which is also included in the Sioux City-Vermillion, IA-SD-NE Combined Statistical Area.

History[edit]

Clay County began forming in 1859 when the land was opened for legal occupation. In 1862 the county was formally organized. The Clay County Courthouse was built in 1912.

Clay County is the name of 17 other counties in the United States, most of them named in honor of Henry Clay.

Geography[edit]

According to the U.S. Census Bureau, the county has a total area of 417 square miles (1,080 km2), of which 412 square miles (1,070 km2) is land and 5.1 square miles (13 km2) (1.2%) is water.[4] It is the smallest county by area in South Dakota.

Protected areas[edit]

Adjacent counties[edit]

Major highways[edit]

Demographics[edit]

Historical population
Census Pop.
1870 2,621
1880 5,001 90.8%
1890 7,509 50.1%
1900 9,316 24.1%
1910 8,711 −6.5%
1920 9,654 10.8%
1930 10,088 4.5%
1940 9,592 −4.9%
1950 10,993 14.6%
1960 10,810 −1.7%
1970 12,923 19.5%
1980 13,689 5.9%
1990 13,186 −3.7%
2000 13,537 2.7%
2010 13,864 2.4%
Est. 2015 13,964 [5] 0.7%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2015[1]

2000 census[edit]

As of the census[10] of 2000, there were 13,537 people, 4,878 households, and 2,721 families residing in the county. The population density was 33 people per square mile (13/km²). There were 5,438 housing units at an average density of 13 per square mile (5/km²).

There were 4,878 households out of which 28.00% had children under the age of 18 living with them, 45.00% were married couples living together, 8.10% had a female householder with no husband present, and 44.20% were non-families. 31.00% of all households were made up of individuals and 8.00% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.93.

In the county, the population was spread out with 18.80% under the age of 18, 31.50% from 18 to 24, 23.80% from 25 to 44, 15.80% from 45 to 64, and 10.10% who were 65 years of age or older. The median age was 25 years. For every 100 females there were 94.30 males. For every 100 females age 18 and over, there were 92.50 males.

2010 census[edit]

As of the 2010 United States Census, there were 13,864 people, 5,110 households, and 2,628 families residing in the county.[11] The population density was 33.6 inhabitants per square mile (13.0/km2). There were 5,639 housing units at an average density of 13.7 per square mile (5.3/km2).[12] The racial makeup of the county was 91.1% white, 3.1% American Indian, 1.7% Asian, 1.3% black or African American, 0.5% from other races, and 2.3% from two or more races. Those of Hispanic or Latino origin made up 2.0% of the population.[11] In terms of ancestry, 43.9% were German, 16.4% were Norwegian, 15.8% were Irish, 8.7% were English, 5.4% were Swedish, and 1.8% were American.[13]

Of the 5,110 households, 24.7% had children under the age of 18 living with them, 40.9% were married couples living together, 7.3% had a female householder with no husband present, 48.6% were non-families, and 32.4% of all households were made up of individuals. The average household size was 2.28 and the average family size was 2.91. The median age was 25.0 years.[11]

The median income for a household in the county was $37,198 and the median income for a family was $61,159. Males had a median income of $37,059 versus $28,016 for females. The per capita income for the county was $19,518. About 8.0% of families and 24.0% of the population were below the poverty line, including 13.6% of those under age 18 and 6.7% of those age 65 or over.[14]

Racial/ethnic makeup[edit]

The racial makeup of the county was 92.78% White, 1.00% Black or African American, 2.66% Native American, 1.95% Asian, 0.01% Pacific Islander, 0.29% from other races, and 1.31% from two or more races. 0.89% of the population were Hispanic or Latino of any race. 32.0% were of German, 15.6% Norwegian, 9.9% Irish and 5.4% English ancestry.

Religion[edit]

From 2000 Census data over 50% consider themselves "unclaimed".[15]

Education[edit]

  • University of South Dakota - In 1862 the territorial legislature located the State University in Vermillion, but nothing was done until 1882 when Clay County voted $10,000 in bonds to construct a building on their campus.[citation needed]

Communities[edit]

Cities[edit]

Town[edit]

Unincorporated communities[edit]

Townships[edit]

The county is divided into twelve townships:

See also[edit]

References[edit]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved November 26, 2013. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 83. 
  4. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved March 23, 2015. 
  5. ^ "County Totals Dataset: Population, Population Change and Estimated Components of Population Change: April 1, 2010 to July 1, 2015". Retrieved July 2, 2016. 
  6. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved March 23, 2015. 
  7. ^ "Historical Census Browser". University of Virginia Library. Retrieved March 23, 2015. 
  8. ^ Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved March 23, 2015. 
  9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved March 23, 2015. 
  10. ^ "American FactFinder". United States Census Bureau. Retrieved 2011-05-14. 
  11. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Retrieved 2016-03-11. 
  12. ^ "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Retrieved 2016-03-11. 
  13. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Retrieved 2016-03-11. 
  14. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Retrieved 2016-03-11. 
  15. ^ "Clay County, SD Denominational groups". Association of Religion Date Archives (arda). 2000. Retrieved 2009-01-25. 

External links[edit]

Coordinates: 42°55′N 96°58′W / 42.92°N 96.97°W / 42.92; -96.97