21 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Spokane | 1 | 230,960 | 229,205 | 0.15% | 3,359 | 69 | City |
| Spokane Valley | 2 | 109,422 | 103,647 | 1.07% | 2,901 | 38 | City |
| Liberty Lake | 3 | 13,657 | 12,137 | 2.28% | 2,153 | 6 | City |
| Cheney | 4 | 12,530 | 13,380 | -1.34% | 2,886 | 4 | City |
| Airway Heights | 5 | 12,239 | 10,793 | 2.42% | 2,036 | 6 | City |
| Fairwood | 6 | 10,809 | 9,790 | 1.83% | 2,706 | 4 | CDP |
| Mead | 7 | 7,146 | 6,995 | -0.13% | 984 | 7 | CDP |
| Country Homes | 8 | 6,350 | 5,877 | 0.54% | 3,802 | 2 | CDP |
| Otis Orchards-East Farms | 9 | 5,569 | 5,968 | -0.77% | 693 | 8 | CDP |
| Deer Park | 10 | 5,386 | 4,408 | 3.76% | 782 | 7 | City |
| Town Country | 11 | 5,340 | 5,402 | 0.62% | 4,450 | 1 | CDP |
| Medical Lake | 12 | 5,033 | 4,882 | 0.6% | 1,493 | 3 | City |
| Fairchild AFB | 13 | 3,286 | 3,464 | 1.05% | 496 | 7 | CDP |
| Millwood | 14 | 1,830 | 1,882 | -0.6% | 2,629 | 1 | City |
| Rockford | 15 | 652 | 526 | 3.99% | 982 | 1 | Town |
| Fairfield | 16 | 599 | 593 | 0.17% | 972 | 1 | Town |
| Four Lakes | 17 | 577 | 515 | 0.7% | 187 | 3 | CDP |
| Spangle | 18 | 277 | 282 | -0.36% | 794 | 0 | City |
| Latah | 19 | 176 | 178 | -0.56% | 550 | 0 | Town |
| Waverly | 20 | 123 | 122 | 0% | 298 | 0 | Town |
| Green Bluff | 21 | 84 | 366 | -34.88% | 12 | 7 | CDP |
Spokane is the largest city in Spokane County, with a population of 230,960.
Green Bluff is the smallest city in Spokane County, with a population of 84.
There are 21 cities in Spokane County, Washington.