Brown County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 38,301, making it the fourth most populous county in South Dakota, and was estimated to be 37,561
Spink County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 6,361. Its county seat is Redfield. The county was created in 1873, and was organized in 1879 with