Martin County | |
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Martin County Courthouse in Fairmont | |
![]() Location within the U.S. state of Minnesota | |
![]() Minnesota's location within the U.S. | |
Coordinates: 43°41′N 94°34′W / 43.68°N 94.56°W | |
Country | ![]() |
State | ![]() |
Founded | May 23, 1857 |
Named for | Henry Martin |
Seat | Fairmont |
Largest city | Fairmont |
Area | |
• Total | 730 sq mi (1,900 km2) |
• Land | 712 sq mi (1,840 km2) |
• Water | 17 sq mi (40 km2) 2.4% |
Population (2020) | |
• Total | 20,025 |
• Estimate (2023) | 19,657 ![]() |
• Density | 28.1/sq mi (10.8/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Congressional district | 1st |
Website | www |
Martin County is a county in Minnesota, United States. As of the 2020 census, the population was 20,025.[1] Its county seat is Fairmont.[2]