10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| McMinnville | 1 | 35,502 | 34,266 | 0.7% | 3,356 | 11 | City |
| Newberg | 2 | 27,540 | 25,518 | 1.49% | 4,603 | 6 | City |
| Sheridan | 3 | 6,361 | 6,430 | -0.22% | 3,016 | 2 | City |
| Lafayette | 4 | 4,676 | 4,430 | 1.06% | 5,050 | 1 | City |
| Dundee | 5 | 3,189 | 3,244 | -0.34% | 2,382 | 1 | City |
| Dayton | 6 | 2,661 | 2,669 | -0.08% | 3,183 | 1 | City |
| Willamina | 7 | 2,286 | 2,256 | 0.26% | 2,416 | 1 | City |
| Carlton | 8 | 2,281 | 2,238 | 0.35% | 2,583 | 1 | City |
| Amity | 9 | 1,780 | 1,752 | 0.28% | 2,997 | 1 | City |
| Yamhill | 10 | 1,219 | 1,199 | 0.33% | 2,503 | 0 | City |
McMinnville is the largest city in Yamhill County, with a population of 35,502.
Yamhill is the smallest city in Yamhill County, with a population of 1,219.
There are 10 cities in Yamhill County, Oregon.