23 cities
| City | Rank | County | 2025 Pop. ↓ |
|---|---|---|---|
| Las Vegas | 1 | Clark County | 670,352 |
| Henderson | 2 | Clark County | 349,460 |
| North Las Vegas | 3 | Clark County | 300,475 |
| Enterprise | 4 | Clark County | 254,706 |
| Spring Valley | 5 | Clark County | 230,544 |
| Sunrise Manor | 6 | Clark County | 200,563 |
| Paradise | 7 | Clark County | 181,375 |
| Whitney | 8 | Clark County | 46,254 |
| Winchester | 9 | Clark County | 39,919 |
| Summerlin South | 10 | Clark County | 31,134 |
| Mesquite | 11 | Clark County | 24,232 |
| Boulder City | 12 | Clark County | 14,771 |
| Laughlin | 13 | Clark County | 8,399 |
| Moapa Valley | 14 | Clark County | 7,199 |
| Nellis AFB | 15 | Clark County | 4,551 |
| Bunkerville | 16 | Clark County | 934 |
| Indian Springs | 17 | Clark County | 798 |
| Moapa Town | 18 | Clark County | 712 |
| Mount Charleston | 19 | Clark County | 503 |
| Cal-Nev-Ari | 20 | Clark County | 256 |
| Blue Diamond | 21 | Clark County | 236 |
| Searchlight | 22 | Clark County | 213 |
| Nelson | 23 | Clark County | 21 |
Clark County is the county generally considered as Southern Nevada.