2 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Council | 1 | 1,023 | 879 | 2.4% | 970 | 1 | City |
| New Meadows | 2 | 728 | 521 | 5.05% | 1,247 | 1 | City |
Council is the largest city in Adams County, with a population of 1,023.
New Meadows is the smallest city in Adams County, with a population of 728.
There are 2 cities in Adams County, Idaho.