Population of Counties in North Dakota (2022)

There are 53 counties in North Dakota.

There are 53 counties in North Dakota. The most populous county in the state is Cass County, which is the only county to have over 100,000 people in North Dakota with 181,516. Fargo, the state’s most populous city, is in Cass County and accounts for 17% of the state’s population. Cass County comprises about 23.88% of North Dakota’s total population. The second-most populous county in North Dakota is Burleigh County, which has 95,273 residents, followed by Grand Forks County with 70,770 residents. Burleigh County is home to Bismarck, the state’s capital and second-most populous city.

North Dakota Counties with the Fewest Residents

Two North Dakota counties have populations under 1,000 residents. Slope County is the least populous county in North Dakota with 763 residents. Slope County’s population density is just 0.63 persons per square kilometer. Billings County is the second-least populous county in the state with 919 residents and a population density of 0.80 persons per square kilometer. Together, Slope County and Billings County make up only 0.22% of North Dakota’s total population.

The third-least populous state in North Dakota is Sheridan County, which has 1,349 residents.

North Dakota Counties with Rapid Growth

Several counties in North Dakota have experienced double-digit growth, with one county seeing triple-digit growth since 2010. McKenzie County has seen a 112.63% growth since 2010. Despite this, McKenzie County has a population of just 13,632 residents.

Williams County has had the second-highest growth since 2010, growing by 56.50%. This is followed by Mountrail County (32.62%) and Stark County (27.25%). Other counties that have had double-digit growth include Dunn (22.51%), Cass (20.77%), Billings (17.37%), Burleigh (16.61%), and Morton (12.79%).

Name 2022 Population Growth Since 2010 Density (mi²)
Adams County2,036-13.36%2.06
Barnes County10,079-8.91%6.76
Benson County6,454-3.34%4.65
Billings County95822.35%0.83
Bottineau County5,934-7.86%3.56
Bowman County2,895-7.89%2.49
Burke County2,17810.50%1.97
Burleigh County96,67618.33%59.21
Cass County186,81024.28%105.85
Cavalier County3,615-9.33%2.43
Dickey County4,695-11.05%4.15
Divide County2,2648.85%1.80
Dunn County4,71233.26%2.35
Eddy County2,221-6.88%3.52
Emmons County3,130-11.36%2.07
Foster County3,219-3.71%5.07
Golden Valley County1,7554.34%1.75
Grand Forks County66,739-0.38%46.46
Grant County2,034-15.04%1.23
Griggs County2,240-7.28%3.16
Hettinger County2,4870.44%2.20
Kidder County2,5614.66%1.90
LaMoure County3,959-4.14%3.45
Logan County1,739-12.96%1.75
McHenry County5,5562.85%2.96
McIntosh County2,290-18.21%2.35
McKenzie County19,314201.22%7.00
McLean County9,2132.39%4.37
Mercer County7,950-5.57%7.62
Morton County32,28217.09%16.76
Mountrail County11,46348.72%6.28
Nelson County2,861-8.33%2.91
Oliver County2,0018.69%2.77
Pembina County6,519-11.93%5.83
Pierce County3,690-15.37%3.62
Ramsey County11,336-1.00%9.55
Ransom County5,200-4.41%6.03
Renville County2,234-10.06%2.55
Richland County16,021-1.87%11.16
Rolette County13,657-2.50%15.12
Sargent County4,0395.95%4.70
Sheridan County1,234-6.23%1.27
Sioux County3,789-8.65%3.46
Slope County717-2.05%0.59
Stark County33,27736.61%24.93
Steele County1,884-5.37%2.65
Stutsman County20,191-4.48%9.09
Towner County2,201-1.87%2.15
Traill County8,084-0.26%9.38
Walsh County10,629-4.36%8.29
Ward County67,4258.54%33.49
Wells County3,612-13.84%2.84
Williams County43,94994.56%21.15