North Dakota Population By County in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the total population of North Dakota was 773.34K. Among all North Dakota counties, Cass was the most populated county (182.99K), followed by Burleigh (97.90K), and then Grand Forks (73.10K).

On the other hand, the least populated counties were: Slope (775), Billings (839), and Sheridan (1.33K).

The chart and table below shows the population of each county and the percentage of North Dakota population in each county.

You can see similar information for other states and by state for the United States.

North Dakota Population By County in 2021
North Dakota Population By County in 2021
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County Population % of State Population
Adams 2237 0.29
Barnes 10869 1.41
Benson 6090 0.79
Billings 839 0.11
Bottineau 6442 0.83
Bowman 3024 0.39
Burke 2177 0.28
Burleigh 97895 12.66
Cass 182992 23.66
Cavalier 3725 0.48
Dickey 5013 0.65
Divide 2196 0.28
Dunn 4054 0.52
Eddy 2378 0.31
Emmons 3316 0.43
Foster 3396 0.44
Golden Valley 1812 0.23
Grand Forks 73101 9.45
Grant 2351 0.30
Griggs 2242 0.29
Hettinger 2502 0.32
Kidder 2397 0.31
LaMoure 4173 0.54
Logan 1814 0.24
McHenry 5420 0.70
McIntosh 2568 0.33
McKenzie 13762 1.78
McLean 9788 1.27
Mercer 8405 1.09
Morton 32916 4.26
Mountrail 9717 1.26
Nelson 3035 0.39
Oliver 1850 0.24
Pembina 6912 0.89
Pierce 4038 0.52
Ramsey 11638 1.51
Ransom 5679 0.73
Renville 2328 0.30
Richland 16546 2.14
Rolette 12508 1.62
Sargent 3839 0.50
Sheridan 1328 0.17
Sioux 3993 0.52
Slope 775 0.10
Stark 32710 4.23
Steele 1870 0.24
Stutsman 21678 2.80
Towner 2190 0.28
Traill 8008 1.04
Walsh 10631 1.38
Ward 69686 9.01
Wells 4031 0.52
Williams 38460 4.97