| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Payette | 1 | 8,952 | 8,197 | 1.58% | 2,188 | 4 | City |
| Fruitland | 2 | 7,458 | 6,115 | 3.4% | 2,751 | 3 | City |
| New Plymouth | 3 | 1,652 | 1,516 | 1.41% | 2,401 | 1 | City |
Payette is the largest city in Payette County, with a population of 8,952.
New Plymouth is the smallest city in Payette County, with a population of 1,652.
There are 3 cities in Payette County, Idaho.