Aurora County, South Dakota | |
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Location in the U.S. state of South Dakota |
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South Dakota's location in the U.S. |
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Founded | 1881 |
Named for | Aurora, a Roman goddess |
Seat | Plankinton |
Largest city | Plankinton |
Area | |
• Total | 713 sq mi (1,847 km2) |
• Land | 708 sq mi (1,834 km2) |
• Water | 4.3 sq mi (11 km2), 0.6% |
Population (est.) | |
• (2016) | 2,736 |
• Density | 3.8/sq mi (1/km²) |
Congressional district | At-large |
Time zone | Central: UTC-6/-5 |
Aurora County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 2,710. Its county seat is Plankinton. The county was created in 1879 and organized in 1881.
Aurora County, named for Aurora, the Roman goddess of the dawn, was created by the Dakota Territorial Legislature in 1879. It was organized in 1881 when three county commissioners were appointed. The county had been established from the combination of Cragin and Wetmore Counties, which had both been formed in 1873. 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. Aurora County was reduced in size in 1883, when the northern part of the county was established as Jerauld County.
According to the U.S. Census Bureau, the county has a total area of 713 square miles (1,850 km2), of which 708 square miles (1,830 km2) is land and 4.3 square miles (11 km2) (0.6%) is water.
As of the census of 2000, there were 3,058 people, 1,165 households, and 816 families residing in the county. The population density was 4 people per square mile (2/km²). There were 1,298 housing units at an average density of 2 per square mile (1/km²). 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.