25 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Yakima | 1 | 97,466 | 97,084 | 0.08% | 3,498 | 28 | City |
| Sunnyside | 2 | 16,297 | 16,396 | -0.12% | 2,158 | 8 | City |
| Grandview | 3 | 11,756 | 10,969 | 1.35% | 1,734 | 7 | City |
| Selah | 4 | 8,769 | 8,189 | 1.34% | 1,912 | 5 | City |
| Toppenish | 5 | 8,616 | 8,825 | -0.49% | 3,965 | 2 | City |
| Moxee | 6 | 4,890 | 4,393 | 2.07% | 2,064 | 2 | City |
| Wapato | 7 | 4,466 | 4,594 | -0.58% | 3,863 | 1 | City |
| Granger | 8 | 3,826 | 3,638 | 0.98% | 2,214 | 2 | City |
| Gleed | 9 | 3,312 | 3,006 | 0.82% | 613 | 5 | CDP |
| Ahtanum | 10 | 3,291 | 3,701 | -0.63% | 414 | 8 | CDP |
| Zillah | 11 | 3,111 | 3,170 | -0.38% | 1,708 | 2 | City |
| Summitview | 12 | 2,332 | 1,892 | 4.06% | 528 | 4 | CDP |
| Mabton | 13 | 1,961 | 1,953 | 0.05% | 2,326 | 1 | City |
| Tieton | 14 | 1,666 | 1,386 | 3.48% | 1,928 | 1 | City |
| Naches | 15 | 1,092 | 1,080 | 0.18% | 1,254 | 1 | Town |
| Harrah | 16 | 575 | 578 | -0.17% | 2,106 | 0 | Town |
| White Swan | 17 | 503 | 793 | -3.64% | 189 | 3 | CDP |
| Tampico | 18 | 491 | 286 | 2.51% | 119 | 4 | CDP |
| Cowiche | 19 | 449 | 662 | 0.22% | 541 | 1 | CDP |
| Buena | 20 | 431 | 845 | -7.91% | 496 | 1 | CDP |
| Outlook | 21 | 352 | 158 | 1.15% | 2,708 | 0 | CDP |
| Eschbach | 22 | 158 | 307 | -9.71% | 134 | 1 | CDP |
| Nile | 23 | 109 | 90 | -1.8% | 119 | 1 | CDP |
| Parker | 24 | 74 | 49 | -6.33% | 627 | 0 | CDP |
| Cliffdell | 25 | 50 | 136 | -7.41% | 27 | 2 | CDP |
Yakima is the largest city in Yakima County, with a population of 97,466.
Cliffdell is the smallest city in Yakima County, with a population of 50.
There are 25 cities in Yakima County, Washington.