Clay County
Clay County, founded in 1862, is one of 66 counties in the US state of South Dakota. In 2000 the county had a population of 13537 inhabitants with a population density of 13 persons per km² The county seat is Vermillion.
Clay County, founded in 1862, is one of 66 counties in the US state of South Dakota. In 2000 the county had a population of 13537 inhabitants with a population density of 13 persons per km² The county seat is Vermillion.