4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Council | 1 | 999 | 870 | 2.46% | 947 | 1 | City |
| Council | 2 | 999 | 879 | 2.46% | 947 | 1 | City |
| New Meadows | 3 | 693 | 516 | 5.16% | 1,187 | 1 | City |
| New Meadows | 4 | 693 | 521 | 5.16% | 1,187 | 1 | City |
Council is the largest city in Adams County, with a population of 999.
New Meadows is the smallest city in Adams County, with a population of 693.
There are 4 cities in Adams County, Idaho.