9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cheyenne | 1 | 65,809 | 65,283 | 0.16% | 1,811 | 36 | City |
| Ranchettes | 2 | 5,714 | 6,384 | -0.1% | 117 | 49 | CDP |
| Fox Farm-College | 3 | 4,371 | 4,105 | 1.13% | 1,451 | 3 | CDP |
| South Greeley | 4 | 3,679 | 4,473 | -0.97% | 2,204 | 2 | CDP |
| Warren AFB | 5 | 2,777 | 2,997 | -0.72% | 593 | 5 | CDP |
| Pine Bluffs | 6 | 1,098 | 1,160 | -1.17% | 276 | 4 | Town |
| Burns | 7 | 384 | 356 | 1.32% | 126 | 3 | Town |
| Carpenter | 8 | 215 | 181 | 6.97% | 903 | 0 | CDP |
| Albin | 9 | 160 | 170 | -1.23% | 1,088 | 0 | Town |
Cheyenne is the largest city in Laramie County, with a population of 65,809.
Albin is the smallest city in Laramie County, with a population of 160.
There are 9 cities in Laramie County, Wyoming.