28 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Kenneth | 1 | 1,361 | 1,395 | -0.51% | 38 | 36 | Township |
| Kenneth | 2 | 1,361 | 1,398 | -0.51% | 38 | 36 | Township |
| Hoxie | 3 | 1,170 | 1,198 | -0.51% | 1,360 | 1 | City |
| Hoxie | 4 | 1,170 | 1,200 | -0.51% | 1,360 | 1 | City |
| Sheridan | 5 | 259 | 264 | 0% | 5 | 53 | Township |
| Sheridan | 6 | 259 | 264 | 0% | 5 | 53 | Township |
| Selden | 7 | 180 | 185 | -0.55% | 594 | 0 | City |
| Selden | 8 | 180 | 185 | -0.55% | 594 | 0 | City |
| Parnell | 9 | 108 | 108 | -0.92% | 2 | 71 | Township |
| Parnell | 10 | 108 | 108 | -0.92% | 2 | 71 | Township |
| Valley | 11 | 101 | 106 | -0.98% | 1 | 72 | Township |
| Valley | 12 | 101 | 106 | -0.98% | 1 | 72 | Township |
| Springbrook | 13 | 81 | 82 | 0% | 1 | 108 | Township |
| Springbrook | 14 | 81 | 82 | 0% | 1 | 108 | Township |
| West Saline | 15 | 54 | 55 | 0% | 1 | 72 | Township |
| West Saline | 16 | 54 | 55 | 0% | 1 | 72 | Township |
| East Saline | 17 | 45 | 46 | 0% | 1 | 72 | Township |
| East Saline | 18 | 45 | 46 | 0% | 1 | 72 | Township |
| Prairie Dog | 19 | 41 | 43 | -2.38% | 1 | 36 | Township |
| Prairie Dog | 20 | 41 | 43 | -2.38% | 1 | 36 | Township |
| Bloomfield | 21 | 40 | 42 | -2.44% | 1 | 36 | Township |
| Bloomfield | 22 | 40 | 42 | -2.44% | 1 | 36 | Township |
| Bowcreek | 23 | 23 | 23 | 0% | 0.00 | 72 | Township |
| Bowcreek | 24 | 23 | 23 | 0% | 0.00 | 72 | Township |
| Union | 25 | 23 | 23 | 0% | 1 | 36 | Township |
| Union | 26 | 23 | 23 | 0% | 1 | 36 | Township |
| Adell | 27 | 13 | 13 | 0% | 0.00 | 54 | Township |
| Adell | 28 | 13 | 13 | 0% | 0.00 | 54 | Township |
Kenneth is the largest city in Sheridan County, with a population of 1,361.
Adell is the smallest city in Sheridan County, with a population of 13.
There are 28 cities in Sheridan County, Kansas.