10 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| McMinnville | 1 | 35,749 | 34,266 | 0.7% | 3,379 | 11 | City |
| Newberg | 2 | 27,945 | 25,518 | 1.47% | 4,671 | 6 | City |
| Sheridan | 3 | 6,347 | 6,430 | -0.22% | 3,009 | 2 | City |
| Lafayette | 4 | 4,725 | 4,430 | 1.05% | 5,103 | 1 | City |
| Dundee | 5 | 3,178 | 3,244 | -0.34% | 2,373 | 1 | City |
| Dayton | 6 | 2,660 | 2,669 | -0.04% | 3,182 | 1 | City |
| Willamina | 7 | 2,292 | 2,256 | 0.26% | 2,423 | 1 | City |
| Carlton | 8 | 2,290 | 2,238 | 0.39% | 2,593 | 1 | City |
| Amity | 9 | 1,786 | 1,752 | 0.34% | 3,007 | 1 | City |
| Yamhill | 10 | 1,223 | 1,199 | 0.33% | 2,511 | 0 | City |
McMinnville is the largest city in Yamhill County, with a population of 35,749.
Yamhill is the smallest city in Yamhill County, with a population of 1,223.
There are 10 cities in Yamhill County, Oregon.