9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tooele | 1 | 41,412 | 36,039 | 2.67% | 1,717 | 24.11 | City |
| Grantsville | 2 | 16,951 | 12,741 | 5.23% | 425 | 39.88 | City |
| Stansbury Park | 3 | 11,854 | 9,271 | 3.93% | 4,350 | 2.73 | CDP |
| Wendover | 4 | 1,140 | 1,120 | 0.35% | 128 | 8.93 | City |
| Stockton | 5 | 627 | 619 | 0.32% | 372 | 1.68 | Town |
| Rush Valley | 6 | 522 | 432 | 3.57% | 29 | 18.08 | Town |
| Vernon | 7 | 315 | 260 | 3.62% | 39 | 8.06 | Town |
| Dugway | 8 | 294 | 618 | -10.09% | 56 | 5.21 | CDP |
| Ophir | 9 | 51 | 65 | 6.25% | 398 | 0.13 | CDP |
Tooele is the largest city in Tooele County, with a population of 41,412.
Ophir is the smallest city in Tooele County.
There are 9 cities in Tooele County, Utah.