| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Chester | 1 | 843 | 845 | -0.12% | 1,731 | 0 | Town |
Chester is the largest city in Liberty County, with a population of 843.
Chester is the smallest city in Liberty County, with a population of 843.
There is 1 city in Liberty County, Montana.