Summerset is a city in Meade County, South Dakota, United States. The population was 1,814 at the 2010 census. Located in the western part of the state, it is the first city to incorporate in the state since 1985.

Summerset was incorporated in an election that was held on June 7, 2005. Opponents of the city's dissolution insist a population of more than a thousand, despite the formal pre-incorporation census indicating 597 residents. The city is located west of Interstate 90, between the towns of Blackhawk and Piedmont, South Dakota. The city shares its zip codes of 57718 and 57769 with these two towns.