6 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cañon City | 1 | 17,318 | 16,942 | 0.37% | 1,395 | 12 | City |
| Florence | 2 | 3,902 | 3,844 | 0.26% | 868 | 4 | City |
| Williamsburg | 3 | 807 | 731 | 1.64% | 228 | 4 | Town |
| Rockvale | 4 | 543 | 513 | 0.93% | 264 | 2 | Town |
| Coal Creek | 5 | 370 | 363 | 0.27% | 310 | 1 | Town |
| Brookside | 6 | 243 | 236 | 0.41% | 513 | 0 | Town |
Cañon City is the largest city in Fremont County, with a population of 17,318.
Brookside is the smallest city in Fremont County, with a population of 243.
There are 6 cities in Fremont County, Colorado.