There are, having said that, casinos nearby such as Watertown Dakota Sioux Casino & Hotel, Sisseton Dakota Connection Casino, Hankinson Dakota Magic Casino, Mobridge Grand River Casino & Hotel, and Lode Star Casino Fort Thompson. Tragically, there aren't any casinos in the lovely town of Aberdeen. It is based in the state of South Dakota (United States). Having 30000 inhabitants after the latest census, Aberdeen is a medium town.