| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Salt Lake City | 1 | 222,706 | 200,719 | 1.96% | 2,008 | 111 | City |
| West Valley City | 2 | 137,047 | 140,027 | -0.32% | 3,825 | 36 | City |
| West Jordan | 3 | 116,737 | 117,060 | -0.06% | 3,582 | 33 | City |
| Sandy | 4 | 91,360 | 97,111 | -1.11% | 3,772 | 24 | City |
| South Jordan | 5 | 89,666 | 77,971 | 2.34% | 3,481 | 26 | City |
| Herriman | 6 | 64,814 | 56,209 | 2.42% | 2,805 | 23 | City |
| Millcreek | 7 | 64,057 | 63,671 | 0.2% | 4,968 | 13 | City |
| Taylorsville | 8 | 56,848 | 60,391 | -1.11% | 5,241 | 11 | City |
| Murray | 9 | 53,982 | 50,636 | 1.29% | 4,390 | 12 | City |
| Draper | 10 | 50,437 | 51,037 | -0.42% | 1,779 | 28 | City |
| Riverton | 11 | 47,742 | 45,315 | 0.73% | 3,788 | 13 | City |
| Magna | 12 | 36,596 | 29,174 | 3.38% | 1,838 | 20 | Township |
| Midvale | 13 | 36,128 | 36,126 | 0.08% | 6,129 | 6 | City |
| Kearns | 14 | 35,161 | 36,582 | -0.69% | 7,591 | 5 | Township |
| Cottonwood Heights | 15 | 31,998 | 33,529 | -0.83% | 3,470 | 9 | City |
| Holladay | 16 | 30,982 | 31,869 | -0.58% | 3,642 | 9 | City |
| South Salt Lake | 17 | 26,895 | 26,715 | -0.14% | 3,875 | 7 | City |
| White City | 18 | 5,066 | 5,502 | -1.55% | 5,796 | 1 | Township |
| Emigration Canyon | 19 | 1,408 | 1,459 | -0.64% | 77 | 18 | Township |
| Copperton | 20 | 757 | 826 | -1.69% | 2,426 | 0 | Township |
| Brighton | 21 | 428 | 433 | -0.23% | 27 | 16 | Town |
| Alta | 22 | 227 | 228 | 0% | 50 | 5 | Town |
Salt Lake City is the largest city in Salt Lake County, with a population of 222,706.
Alta is the smallest city in Salt Lake County, with a population of 227.
There are 22 cities in Salt Lake County, Utah.