9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tooele | 1 | 42,139 | 36,036 | 2.98% | 1,747 | 24 | City |
| Grantsville | 2 | 16,417 | 12,740 | 4.69% | 412 | 40 | City |
| Stansbury Park | 3 | 11,854 | 9,271 | 3.93% | 4,350 | 3 | CDP |
| Wendover | 4 | 1,135 | 1,123 | 0.18% | 127 | 9 | City |
| Stockton | 5 | 618 | 618 | 0% | 367 | 2 | Town |
| Rush Valley | 6 | 497 | 430 | 2.69% | 27 | 18 | Town |
| Vernon | 7 | 305 | 259 | 3.04% | 38 | 8 | Town |
| Dugway | 8 | 294 | 618 | -10.09% | 56 | 5 | CDP |
| Ophir | 9 | 51 | 65 | 6.25% | 398 | 0 | CDP |
Tooele is the largest city in Tooele County, with a population of 42,139.
Ophir is the smallest city in Tooele County, with a population of 51.
There are 9 cities in Tooele County, Utah.