6 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Payette | 1 | 8,892 | 8,133 | 1.58% | 2,174 | 4 | City |
| Payette | 2 | 8,892 | 8,200 | 1.58% | 2,174 | 4 | City |
| Fruitland | 3 | 7,319 | 6,077 | 3.4% | 3,048 | 2 | City |
| Fruitland | 4 | 7,319 | 6,114 | 3.4% | 3,048 | 2 | City |
| New Plymouth | 5 | 1,631 | 1,500 | 1.43% | 2,371 | 1 | City |
| New Plymouth | 6 | 1,631 | 1,515 | 1.43% | 2,371 | 1 | City |
Payette is the largest city in Payette County, with a population of 8,892.
New Plymouth is the smallest city in Payette County, with a population of 1,631.
There are 6 cities in Payette County, Idaho.