Jefferson, South Dakota

Jefferson, South Dakota
Location in Union County and the state of South Dakota
Coordinates: 42°36′15″N 96°33′58″W / 42.60417°N 96.56611°W / 42.60417; -96.56611
CountryUnited States
StateSouth Dakota
CountyUnion
Incorporated1895
Area
  Total
0.51 sq mi (1.32 km2)
  Land0.51 sq mi (1.32 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
1,116 ft (340 m)
Population
 (2020)
  Total
475
  Density931.37/sq mi (359.27/km2)
Time zoneUTC-6 (Central (CST))
  Summer (DST)UTC-5 (CDT)
ZIP code
57038
Area code605
FIPS code46-32700
GNIS feature ID1267441

Jefferson is a city in Union County, South Dakota, United States. The population was 475 at the 2020 census. It is part of the Sioux City, IA-NE-SD Metropolitan Statistical Area. Jefferson was founded in 1859. Every year the citizens of Jefferson and surrounding area celebrate the founding of Jefferson during "Jefferson Days", a festival that includes a movie in the park, a car show, fireworks and parade.

The city has the name of President Thomas Jefferson.