| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Eugene | 1 | 178,675 | 178,542 | 0.03% | 3,998 | 45 | City |
| Springfield | 2 | 61,251 | 61,880 | -0.29% | 3,815 | 16 | City |
| Cottage Grove | 3 | 10,858 | 10,649 | 0.06% | 2,805 | 4 | City |
| Florence | 4 | 9,474 | 9,494 | 0.06% | 1,710 | 6 | City |
| Junction City | 5 | 7,354 | 6,728 | 1.8% | 2,223 | 3 | City |
| Creswell | 6 | 5,559 | 5,636 | -0.13% | 3,241 | 2 | City |
| Veneta | 7 | 5,125 | 5,221 | -0.25% | 1,994 | 3 | City |
| Oakridge | 8 | 3,111 | 3,210 | -0.51% | 1,439 | 2 | City |
| Dunes City | 9 | 1,395 | 1,428 | -0.36% | 519 | 3 | City |
| Coburg | 10 | 1,380 | 1,319 | 0.51% | 1,155 | 1 | City |
| Lowell | 11 | 1,303 | 1,205 | 1.56% | 1,506 | 1 | City |
| Westfir | 12 | 251 | 261 | -0.79% | 799 | 0 | City |
Eugene is the largest city in Lane County, with a population of 178,675.
Westfir is the smallest city in Lane County, with a population of 251.
There are 12 cities in Lane County, Oregon.