Morton County, North Dakota

Morton County, North Dakota
The Morton County Courthouse in Mandan
Location within the U.S. state of North Dakota
Coordinates: 46°42′36″N 101°18′36″W / 46.710029°N 101.310041°W / 46.710029; -101.310041
Country United States
State North Dakota
FoundedJanuary 8, 1873 (created)
November 5, 1878 (organized)
Named afterOliver P. Morton
SeatMandan
Largest cityMandan
Area
 • Total
1,945.167 sq mi (5,037.96 km2)
 • Land1,925.888 sq mi (4,988.03 km2)
 • Water19.279 sq mi (49.93 km2)  0.99%
Population
 (2020)
 • Total
33,291
 • Estimate 
(2024)
34,194
 • Density17.754/sq mi (6.855/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Area code701
Congressional districtAt-large
Websitemortonnd.org

Morton County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 33,291, and was estimated to be 34,194 in 2024, making it the sixth-most populous county in North Dakota. Its county seat and largest city is Mandan, the eighth-largest city in North Dakota.

Morton County is included in the Bismarck metropolitan area.