Aurora County, South Dakota
Map of South Dakota highlighting Aurora County
Location in the state of South Dakota
Map of USA SD
South Dakota's location in the U.S.
Founded February 22, 1879
Named for Aurora
Seat Plankinton
 - Total
 - Land
 - Water

713 sq mi (1,845 km²)
708 sq mi (1,834 km²)
4 sq mi (11 km²), 0.61%
 - (2000)
 - Density

4/sq mi (2/km²)

Aurora County is a county located in the U.S. state of South Dakota. As of 2000, the population is 3,058. Its county seat is Plankinton.6


Aurora County, named for Aurora the Roman goddess of the dawn, was created by the South Dakota legislature on February 22, 1879, and organized in 1881 when three county commissioners were appointed. The county commission first met on August 29, 1881, and named Plankinton the county seat, an act which was ratified by voters in November 1882.


According to the U.S. Census Bureau, the county has a total area of 1,845 km² (713 sq mi). 1,834 km² (708 sq mi) of it is land and 11 km² (4 sq mi) of it (0.61%) is water.

Townships Edit

The county is divided into twenty townships:

Major HighwaysEdit

Adjacent Counties Edit


Historical populations
Census Pop.
1900 4,011
1910 6,143 53.2%
1920 7,246 18.0%
1930 7,139 −1.5%
1940 5,387 −24.5%
1950 5,020 −6.8%
1960 4,749 −5.4%
1970 4,183 −11.9%
1980 3,628 −13.3%
1990 3,136 −13.6%
2000 3,058 −2.5%
Est. 2006 2,905 −5.0%

As of the census2 of 2000, there were 3,058 people, 1,165 households, and 816 families residing in the county. The population density was 2/km² (4/sq mi). There were 1,298 housing units at an average density of 1/km² (2/sq mi). The racial makeup of the county was 95.68% White, 0.29% Black or African American, 1.93% Native American, 0.10% Asian, 1.44% from other races, and 0.56% from two or more races. 2.09% of the population were Hispanic or Latino of any race. 48.0% were of German, 13.0% Dutch, 6.9% Norwegian, 6.6% English, 6.1% Irish and 5.8% United States or American ancestry.

There were 1,165 households out of which 29.70% had children under the age of 18 living with them, 61.30% were married couples living together, 5.00% had a female householder with no husband present, and 29.90% were non-families. 28.20% of all households were made up of individuals and 14.70% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 3.02.

In the county, the population was spread out with 27.60% under the age of 18, 6.50% from 18 to 24, 22.10% from 25 to 44, 22.20% from 45 to 64, and 21.60% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 104.30 males. For every 100 females age 18 and over, there were 98.80 males.

Cities and towns Edit

Coordinates: 43°43′N 98°34′W / 43.72, -98.57

This page uses content from the English language Wikipedia. The original content was at Aurora County, South Dakota. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

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