23 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Salt Lake City | 1 | 215,548 | 200,660 | 1.4% | 1,944 | 110.89 | City |
| West Valley City | 2 | 130,801 | 139,973 | -1.38% | 3,651 | 35.83 | City |
| West Jordan | 3 | 113,492 | 117,032 | -0.62% | 3,483 | 32.59 | City |
| South Jordan | 4 | 88,910 | 77,954 | 2.53% | 4,004 | 22.20 | City |
| Sandy | 5 | 88,621 | 96,925 | -1.84% | 3,659 | 24.22 | City |
| Herriman | 6 | 62,607 | 56,212 | 2.09% | 2,709 | 23.11 | City |
| Millcreek | 7 | 61,228 | 63,670 | -0.79% | 4,748 | 12.89 | City |
| Taylorsville | 8 | 54,916 | 60,371 | -1.95% | 5,063 | 10.85 | City |
| Murray | 9 | 48,911 | 50,515 | -0.65% | 3,978 | 12.30 | City |
| Draper | 10 | 48,652 | 51,027 | -0.97% | 1,716 | 28.35 | City |
| Riverton | 11 | 44,564 | 45,289 | -0.32% | 3,535 | 12.61 | City |
| Kearns | 12 | 38,455 | 36,734 | 0.9% | 8,302 | 4.63 | Township |
| Midvale | 13 | 35,191 | 36,116 | -0.52% | 5,970 | 5.89 | City |
| Cottonwood Heights | 14 | 31,328 | 33,518 | -1.38% | 3,397 | 9.22 | City |
| Magna | 15 | 30,637 | 29,261 | 0.91% | 1,539 | 19.91 | Township |
| Holladay | 16 | 29,253 | 31,865 | -1.75% | 3,439 | 8.51 | City |
| South Salt Lake | 17 | 25,728 | 26,713 | -0.76% | 3,707 | 6.94 | City |
| White City | 18 | 5,777 | 5,524 | 0.89% | 6,610 | 0.87 | Township |
| Emigration Canyon | 19 | 1,533 | 1,465 | 0.92% | 84 | 18.22 | Township |
| Copperton | 20 | 868 | 828 | 0.93% | 2,782 | 0.31 | Township |
| Brighton | 21 | 455 | 434 | 0.89% | 29 | 15.77 | Town |
| Granite | 22 | 396 | 800 | -20.48% | 372 | 1.06 | CDP |
| Alta | 23 | 224 | 229 | -0.44% | 50 | 4.52 | Town |
Salt Lake City is the largest city in Salt Lake County, with a population of 215,548.
Alta is the smallest city in Salt Lake County.
There are 23 cities in Salt Lake County, Utah.