Lake Koshkonong, Wisconsin

Lake Koshkonong, Wisconsin
Location of Lake Koshkonong, Wisconsin
Coordinates: 42°51′38″N 88°56′25″W / 42.86056°N 88.94028°W / 42.86056; -88.94028
CountryUnited States
StateWisconsin
CountyJefferson
TownKoshkonong, Sumner
Area
  Total
29.9 sq mi (77.4 km2)
  Land14.3 sq mi (37.1 km2)
  Water15.6 sq mi (40.3 km2)
Elevation
781 ft (238 m)
Population
 (2020)
  Total
1,239
  Density41/sq mi (16/km2)
Time zoneUTC-6 (Central (CST))
  Summer (DST)UTC-5 (CDT)
FIPS code55-41583
GNIS feature ID1852244

Lake Koshkonong is a census-designated place (CDP) in the towns of Koshkonong and Sumner, Jefferson County, Wisconsin, United States. The population was 1,239 at the 2020 census. Lake Koshkonong is in the area.