Slope County, North Dakota

Slope County
Location within the U.S. state of North Dakota
North Dakota's location within the U.S.
Coordinates: 46°27′N 103°28′W / 46.45°N 103.46°W / 46.45; -103.46
Country United States
State North Dakota
FoundedNovember 3, 1914
January 14, 1915 (organized)
SeatAmidon
Largest cityMarmarth
Area
  Total
1,219 sq mi (3,160 km2)
  Land1,215 sq mi (3,150 km2)
  Water4.2 sq mi (11 km2)  0.3%
Population
 (2020)
  Total
706
  Estimate 
(2024)
660
  Density0.58/sq mi (0.22/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional districtAt-large
Websitewww.slopecountynd.gov

Slope County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 706, making it the least populous county in North Dakota and the 18th-least populous county in the United States. The county seat is Amidon.