2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Council | 1 | 1,009 | 879 | 2.65% | 956 | 1.05 | City |
| New Meadows | 2 | 712 | 521 | 5.64% | 1,219 | 0.58 | City |
Council is the largest city in Adams County, with a population of 1,009.
New Meadows is the smallest city in Adams County.
There are 2 cities in Adams County, Idaho.