Summer Set, MO

Summer Set is an unincorporated Jefferson County community and census-designated place three miles south of De Soto. The residential area is built around three artificial lakes: Summerset Lake, Winterhaven Lake, and Spring Lake. Those names give the place its basic orientation, with local roads and homes arranged around water, not a traditional downtown or town square. Jefferson County supplies the government structure, while De Soto is the nearby city reference point for the southern part of the county. Summer Set was first listed as a census-designated place before the 2020 census, so its current map label is relatively new even though the lake community predates it. Summer Set is a small Missouri address whose story is mostly about three lakes, a county boundary, and the road south of De Soto.