10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| McMinnville | 1 | 34,434 | 34,473 | -0.02% | 3,255 | 10.58 | City |
| Newberg | 2 | 26,502 | 25,484 | 0.78% | 4,430 | 5.98 | City |
| Sheridan | 3 | 6,505 | 6,450 | 0.17% | 3,084 | 2.11 | City |
| Lafayette | 4 | 4,597 | 4,429 | 0.75% | 4,964 | 0.93 | City |
| Dundee | 5 | 3,133 | 3,247 | -0.73% | 2,340 | 1.34 | City |
| Dayton | 6 | 2,637 | 2,669 | -0.23% | 3,154 | 0.84 | City |
| Willamina | 7 | 2,263 | 2,250 | 0.13% | 2,392 | 0.95 | City |
| Carlton | 8 | 2,227 | 2,221 | 0.04% | 2,522 | 0.88 | City |
| Amity | 9 | 1,765 | 1,759 | 0.06% | 2,971 | 0.59 | City |
| Yamhill | 10 | 1,155 | 1,149 | 0.09% | 2,372 | 0.49 | City |
McMinnville is the largest city in Yamhill County, with a population of 34,434.
Yamhill is the smallest city in Yamhill County.
There are 10 cities in Yamhill County, Oregon.