17 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Pullman | 1 | 32,868 | 32,855 | 0.01% | 2,955 | 11.12 | City |
| Colfax | 2 | 2,777 | 2,766 | 0.07% | 736 | 3.77 | City |
| Palouse | 3 | 1,059 | 1,014 | 0.86% | 1,011 | 1.05 | City |
| Tekoa | 4 | 803 | 808 | -0.12% | 655 | 1.23 | City |
| Rosalia | 5 | 622 | 591 | 0.97% | 990 | 0.63 | Town |
| St. John | 6 | 595 | 595 | 0% | 887 | 0.67 | Town |
| Albion | 7 | 564 | 543 | 0.71% | 1,439 | 0.39 | Town |
| Garfield | 8 | 561 | 558 | 0.18% | 597 | 0.94 | Town |
| Colton | 9 | 409 | 398 | 0.49% | 663 | 0.62 | Town |
| Oakesdale | 10 | 392 | 392 | 0% | 377 | 1.04 | Town |
| Uniontown | 11 | 388 | 387 | 0% | 420 | 0.92 | Town |
| Endicott | 12 | 304 | 308 | -0.33% | 1,024 | 0.30 | Town |
| LaCrosse | 13 | 295 | 297 | 0% | 345 | 0.85 | Town |
| Malden | 14 | 268 | 215 | 4.28% | 407 | 0.66 | Town |
| Farmington | 15 | 137 | 131 | 0.74% | 378 | 0.36 | Town |
| Lamont | 16 | 83 | 77 | 1.22% | 286 | 0.29 | Town |
| Steptoe | 17 | 80 | 135 | -8.05% | 36 | 2.22 | CDP |
Pullman is the largest city in Whitman County, with a population of 32,868.
Steptoe is the smallest city in Whitman County.
There are 17 cities in Whitman County, Washington.