22 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Salt Lake City | 1 | 226,341 | 200,666 | 1.93% | 2,041 | 111 | City |
| West Valley City | 2 | 137,218 | 139,995 | -0.34% | 3,830 | 36 | City |
| West Jordan | 3 | 116,515 | 117,034 | -0.07% | 3,576 | 33 | City |
| Sandy | 4 | 90,781 | 96,958 | -1.12% | 3,748 | 24 | City |
| South Jordan | 5 | 90,258 | 77,952 | 2.33% | 3,504 | 26 | City |
| Herriman | 6 | 65,423 | 56,209 | 2.4% | 2,831 | 23 | City |
| Millcreek | 7 | 64,487 | 63,676 | 0.21% | 5,001 | 13 | City |
| Taylorsville | 8 | 56,538 | 60,380 | -1.12% | 5,213 | 11 | City |
| Murray | 9 | 50,965 | 50,520 | 0.15% | 4,145 | 12 | City |
| Draper | 10 | 49,737 | 51,023 | -0.43% | 1,755 | 28 | City |
| Riverton | 11 | 47,373 | 45,294 | 0.74% | 3,758 | 13 | City |
| Kearns | 12 | 40,728 | 36,737 | 1.66% | 8,793 | 5 | Township |
| Midvale | 13 | 36,270 | 36,116 | 0.07% | 6,153 | 6 | City |
| Magna | 14 | 32,440 | 29,262 | 1.66% | 1,629 | 20 | Township |
| Cottonwood Heights | 15 | 31,896 | 33,519 | -0.84% | 3,459 | 9 | City |
| Holladay | 16 | 29,949 | 31,866 | -1.05% | 3,521 | 9 | City |
| South Salt Lake | 17 | 26,487 | 26,708 | -0.14% | 3,816 | 7 | City |
| White City | 18 | 6,115 | 5,523 | 1.65% | 6,997 | 1 | Township |
| Emigration Canyon | 19 | 1,625 | 1,465 | 1.69% | 89 | 18 | Township |
| Copperton | 20 | 919 | 828 | 1.66% | 2,946 | 0 | Township |
| Brighton | 21 | 482 | 434 | 1.69% | 31 | 16 | Town |
| Alta | 22 | 228 | 228 | 0% | 50 | 5 | Town |
Salt Lake City is the largest city in Salt Lake County, with a population of 226,341.
Alta is the smallest city in Salt Lake County, with a population of 228.
There are 22 cities in Salt Lake County, Utah.