18 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rugby | 1 | 2,383 | 2,499 | -0.79% | 1,043 | 2 | City |
| Meyer | 2 | 98 | 103 | -1.01% | 3 | 34 | Township |
| Hagel | 3 | 73 | 72 | 0% | 2 | 36 | Township |
| Ness | 4 | 68 | 72 | -1.45% | 2 | 36 | Township |
| Tuscarora | 5 | 65 | 70 | -1.52% | 2 | 35 | Township |
| Torgerson | 6 | 62 | 67 | -1.59% | 2 | 33 | Township |
| Balta | 7 | 62 | 65 | 0% | 273 | 0 | City |
| Reno Valley | 8 | 43 | 47 | -2.27% | 1 | 35 | Township |
| Elverum | 9 | 40 | 44 | -2.44% | 1 | 32 | Township |
| Rush Lake | 10 | 40 | 41 | 0% | 1 | 35 | Township |
| Wolford | 11 | 40 | 43 | 0% | 222 | 0 | City |
| Jefferson | 12 | 39 | 40 | 0% | 1 | 35 | Township |
| Elling | 13 | 38 | 39 | 0% | 1 | 34 | Township |
| Truman | 14 | 38 | 39 | 0% | 1 | 35 | Township |
| White | 15 | 36 | 44 | -7.69% | 1 | 34 | Township |
| Balta | 16 | 30 | 31 | 0% | 1 | 34 | Township |
| Alexanter | 17 | 28 | 29 | 0% | 1 | 35 | Township |
| Antelope Lake | 18 | 15 | 18 | -6.25% | 0.00 | 32 | Township |
Rugby is the largest city in Pierce County, with a population of 2,383.
Antelope Lake is the smallest city in Pierce County, with a population of 15.
There are 18 cities in Pierce County, North Dakota.