8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sterling | 1 | 13,039 | 13,414 | -0.57% | 1,711 | 8 | City |
| Fleming | 2 | 420 | 430 | -0.47% | 859 | 0 | Town |
| Merino | 3 | 276 | 283 | -0.72% | 1,816 | 0 | Town |
| Iliff | 4 | 239 | 244 | -0.42% | 1,251 | 0 | Town |
| Peetz | 5 | 201 | 211 | -0.99% | 901 | 0 | Town |
| Atwood | 6 | 147 | 155 | 0.68% | 142 | 1 | CDP |
| Crook | 7 | 123 | 130 | -1.6% | 911 | 0 | Town |
| Padroni | 8 | 41 | 63 | 7.89% | 51 | 1 | CDP |
Sterling is the largest city in Logan County, with a population of 13,039.
Padroni is the smallest city in Logan County, with a population of 41.
There are 8 cities in Logan County, Colorado.