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Hanson County is a county located in the state of South Dakota. Based on the 2010 census, the population was 3,331. Its county seat is
Alexandria. The county was founded in 1871 and organized in 1873. It was named for Joseph R. Hanson, clerk of the first legislature.
Hanson County is part of the Mitchell, SD Micropolitan Statistical Area.
Hanson was named for Joseph R. Hanson of Yankton
County QuickFacts: CensusBureau Quick Facts
The county was formally organized in January 1871 and named for Major Hanson who had settled in the area in 1870. The
county seat was temporarily located at Rockport. The town of Alexandria became the county seat in 1880.
As reported by the Census Bureau, the county has a total area of 436 square miles (1,128 km2), of which, 435
square miles (1,126 km2) of it is land and 1 square miles (2 km2) of it (0.20%) is water
Bordering counties are as follows: