Martin County, Minnesota

Martin County, Minnesota
Location within the U.S. state of Minnesota
Coordinates: 43°41′N 94°34′W / 43.68°N 94.56°W / 43.68; -94.56
Country United States
State Minnesota
FoundedMay 23, 1857
Named afterHenry Martin
SeatFairmont
Largest cityFairmont
Area
 • Total
730 sq mi (1,900 km2)
 • Land712 sq mi (1,840 km2)
 • Water17 sq mi (44 km2)  2.4%
Population
 (2020)
 • Total
20,025
 • Estimate 
(2024)
19,561
 • Density28.1/sq mi (10.9/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district1st
Websitewww.co.martin.mn.us

Martin County is a county in Minnesota, United States. As of the 2020 census, the population was 20,025. Its county seat is Fairmont.