Roseau County, Minnesota

Roseau County
Postcard of the Roseau County Courthouse
Location within the U.S. state of Minnesota
Minnesota's location within the U.S.
Coordinates: 48°46′N 95°48′W / 48.77°N 95.8°W / 48.77; -95.8
Country United States
State Minnesota
FoundedDecember 31, 1894
Named afterRoseau River
SeatRoseau
Largest cityRoseau
Area
  Total
1,678 sq mi (4,350 km2)
  Land1,672 sq mi (4,330 km2)
  Water6.5 sq mi (17 km2)  0.4%
Population
 (2020)
  Total
15,331
  Estimate 
(2023)
15,252
  Density9.2/sq mi (3.6/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district7th
Websitewww.co.roseau.mn.us

Roseau County (/rˈz/) is a county in the northwestern part of the U.S. state of Minnesota, along the Canada–U.S. border. As of the 2020 census, the population was 15,331. Its county seat is Roseau. Roseau County borders the Canadian province of Manitoba.

Part of the Red Lake Indian Reservation is in Roseau County.