10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Grants Pass | 1 | 39,524 | 39,191 | 0.14% | 3,431 | 12 | City |
| Grants Pass | 2 | 39,524 | 39,244 | 0.14% | 3,431 | 12 | City |
| Cave Junction | 3 | 2,089 | 2,098 | -0.14% | 1,155 | 2 | City |
| Cave Junction | 4 | 2,089 | 2,102 | -0.14% | 1,155 | 2 | City |
| Merlin | 5 | 1,864 | 1,792 | 0.92% | 448 | 4 | CDP |
| Williams | 6 | 1,198 | 1,379 | 0.67% | 106 | 11 | CDP |
| Selma | 7 | 941 | 913 | 1.73% | 146 | 6 | CDP |
| Takilma | 8 | 697 | 465 | 3.11% | 117 | 6 | CDP |
| O'Brien | 9 | 648 | 639 | 1.57% | 124 | 5 | CDP |
| Kerby | 10 | 253 | 282 | -8% | 98 | 3 | CDP |
Grants Pass is the largest city in Josephine County, with a population of 39,524.
Kerby is the smallest city in Josephine County, with a population of 253.
There are 10 cities in Josephine County, Oregon.