North Dakota Population By County in 2021
Updated on June 16, 2025.
Based on the US Census Vintage data estimates, in 2021, the population of North Dakota was 777,966. Among all North Dakota counties, Cass had the highest population (189,330), followed by Burleigh (99,386), and Grand Forks (72,409). Slope was the least populated county (695).
Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.
You can see similar information for other states and by state for the United States.
Related Topics: North Dakota Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
North Dakota Population By County in 2021
North Dakota Population By County in 2021
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| County | Population | % of State Population |
|---|---|---|
| Adams | 2156 | 0.28 |
| Barnes | 10714 | 1.38 |
| Benson | 5773 | 0.74 |
| Billings | 964 | 0.12 |
| Bottineau | 6417 | 0.83 |
| Bowman | 2901 | 0.37 |
| Burke | 2152 | 0.28 |
| Burleigh | 99386 | 12.78 |
| Cass | 189330 | 24.34 |
| Cavalier | 3677 | 0.47 |
| Dickey | 4903 | 0.63 |
| Divide | 2182 | 0.28 |
| Dunn | 4014 | 0.52 |
| Eddy | 2318 | 0.30 |
| Emmons | 3262 | 0.42 |
| Foster | 3366 | 0.43 |
| Golden Valley | 1754 | 0.23 |
| Grand Forks | 72409 | 9.31 |
| Grant | 2308 | 0.30 |
| Griggs | 2290 | 0.29 |
| Hettinger | 2428 | 0.31 |
| Kidder | 2364 | 0.30 |
| LaMoure | 4054 | 0.52 |
| Logan | 1860 | 0.24 |
| McHenry | 5224 | 0.67 |
| McIntosh | 2519 | 0.32 |
| McKenzie | 13855 | 1.78 |
| McLean | 9819 | 1.26 |
| Mercer | 8336 | 1.07 |
| Morton | 33581 | 4.32 |
| Mountrail | 9578 | 1.23 |
| Nelson | 3055 | 0.39 |
| Oliver | 1876 | 0.24 |
| Pembina | 6767 | 0.87 |
| Pierce | 3951 | 0.51 |
| Ramsey | 11619 | 1.49 |
| Ransom | 5677 | 0.73 |
| Renville | 2272 | 0.29 |
| Richland | 16547 | 2.13 |
| Rolette | 12074 | 1.55 |
| Sargent | 3849 | 0.50 |
| Sheridan | 1265 | 0.16 |
| Sioux | 3750 | 0.48 |
| Slope | 695 | 0.09 |
| Stark | 33031 | 4.25 |
| Steele | 1803 | 0.23 |
| Stutsman | 21607 | 2.78 |
| Towner | 2116 | 0.27 |
| Traill | 7968 | 1.02 |
| Walsh | 10483 | 1.35 |
| Ward | 69265 | 8.90 |
| Wells | 3896 | 0.50 |
| Williams | 38506 | 4.95 |