18 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| McClusky | 1 | 317 | 322 | -0.31% | 854 | 0.37 | City |
| Goodrich | 2 | 110 | 110 | 0% | 377 | 0.29 | City |
| Martin township | 3 | 88 | 92 | -1.12% | 3 | 34.16 | Township |
| Martin township | 4 | 69 | 68 | -1.43% | 2 | 34.78 | Township |
| McClusky township | 5 | 64 | 66 | -3.03% | 2 | 35.30 | Township |
| Martin | 6 | 60 | 62 | 0% | 674 | 0.09 | City |
| Sperry/Goodrich township | 7 | 34 | 35 | -2.86% | 1 | 67.43 | Township |
| Highland township | 8 | 32 | 32 | 0% | 1 | 35.26 | Township |
| Rosenfield township | 9 | 29 | 29 | 0% | 1 | 33.82 | Township |
| Strassburg township | 10 | 29 | 32 | -3.33% | 1 | 32.37 | Township |
| Lincoln Dale township | 11 | 27 | 27 | 0% | 1 | 34.99 | Township |
| Prophets township | 12 | 27 | 27 | 0% | 1 | 35.46 | Township |
| Denhoff township | 13 | 25 | 26 | -3.85% | 1 | 34.13 | Township |
| Denhoff | 14 | 22 | 15 | 4.76% | 33 | 0.66 | CDP |
| Edgemont township | 15 | 17 | 17 | 0% | 0.00 | 35.40 | Township |
| Boone township | 16 | 16 | 16 | 0% | 0.00 | 35.29 | Township |
| Mauch township | 17 | 11 | 11 | 0% | 0.00 | 32.75 | Township |
| Fairview township | 18 | 3 | 3 | 0% | 0.00 | 34.95 | Township |
McClusky is the largest city in Sheridan County, with a population of 317.
Fairview township is the smallest city in Sheridan County.
There are 18 cities in Sheridan County, North Dakota.