| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Republic | 1 | 1,025 | 983 | 0.89% | 722 | 1 | City |
Republic is the largest city in Ferry County, with a population of 1,025.
Republic is the smallest city in Ferry County, with a population of 1,025.
There is 1 city in Ferry County, Washington.