| Rank |
County |
Population (2012) |
| 1 |
Cass County, North Dakota
|
156,157
|
| 2 |
Burleigh County, North Dakota
|
85,774
|
| 3 |
Grand Forks County, North Dakota
|
67,472
|
| 4 |
Ward County, North Dakota
|
64,798
|
| 5 |
Morton County, North Dakota
|
28,101
|
| 6 |
Stark County, North Dakota
|
26,771
|
| 7 |
Williams County, North Dakota
|
26,697
|
| 8 |
Stutsman County, North Dakota
|
20,934
|
| 9 |
Richland County, North Dakota
|
16,217
|
| 10 |
Rolette County, North Dakota
|
14,382
|
| 11 |
Ramsey County, North Dakota
|
11,536
|
| 12 |
Walsh County, North Dakota
|
11,046
|
| 13 |
Barnes County, North Dakota
|
11,015
|
| 14 |
McLean County, North Dakota
|
9,309
|
| 15 |
Mountrail County, North Dakota
|
8,734
|
| 16 |
Mercer County, North Dakota
|
8,486
|
| 17 |
Traill County, North Dakota
|
8,072
|
| 18 |
McKenzie County, North Dakota
|
7,987
|
| 19 |
Pembina County, North Dakota
|
7,271
|
| 20 |
Benson County, North Dakota
|
6,760
|
| 21 |
Bottineau County, North Dakota
|
6,579
|
| 22 |
McHenry County, North Dakota
|
5,789
|
| 23 |
Ransom County, North Dakota
|
5,444
|
| 24 |
Dickey County, North Dakota
|
5,268
|
| 25 |
Pierce County, North Dakota
|
4,457
|
| 26 |
Sioux County, North Dakota
|
4,347
|
| 27 |
Wells County, North Dakota
|
4,271
|
| 28 |
LaMoure County, North Dakota
|
4,114
|
| 29 |
Dunn County, North Dakota
|
3,967
|
| 30 |
Cavalier County, North Dakota
|
3,948
|
| 31 |
Sargent County, North Dakota
|
3,896
|
| 32 |
Emmons County, North Dakota
|
3,491
|
| 33 |
Foster County, North Dakota
|
3,392
|
| 34 |
Bowman County, North Dakota
|
3,202
|
| 35 |
Nelson County, North Dakota
|
3,080
|
| 36 |
McIntosh County, North Dakota
|
2,751
|
| 37 |
Renville County, North Dakota
|
2,559
|
| 38 |
Hettinger County, North Dakota
|
2,553
|
| 39 |
Kidder County, North Dakota
|
2,426
|
| 40 |
Eddy County, North Dakota
|
2,368
|
| 41 |
Griggs County, North Dakota
|
2,362
|
| 42 |
Grant County, North Dakota
|
2,333
|
| 43 |
Towner County, North Dakota
|
2,318
|
| 44 |
Adams County, North Dakota
|
2,311
|
| 45 |
Divide County, North Dakota
|
2,228
|
| 46 |
Burke County, North Dakota
|
2,171
|
| 47 |
Steele County, North Dakota
|
1,989
|
| 48 |
Logan County, North Dakota
|
1,924
|
| 49 |
Oliver County, North Dakota
|
1,838
|
| 50 |
Golden Valley County, North Dakota
|
1,804
|
| 51 |
Sheridan County, North Dakota
|
1,266
|
| 52 |
Billings County, North Dakota
|
905
|
| 53 |
Slope County, North Dakota
|
758
|