7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Fernley | 1 | 25,888 | 23,028 | 2.26% | 211 | 122.72 | City |
| Dayton | 2 | 17,028 | 14,258 | 3.26% | 488 | 34.90 | CDP |
| Silver Springs | 3 | 5,072 | 4,910 | -0.29% | 71 | 71.63 | CDP |
| Yerington | 4 | 3,253 | 3,105 | 0.93% | 110 | 29.50 | City |
| Stagecoach | 5 | 1,912 | 2,436 | 0.16% | 229 | 8.35 | CDP |
| Smith Valley | 6 | 1,657 | 1,711 | 0.24% | 16 | 101.96 | CDP |
| Silver City | 7 | 131 | 115 | 7.38% | 135 | 0.97 | CDP |
Fernley is the largest city in Lyon County, with a population of 25,888.
Silver City is the smallest city in Lyon County.
There are 7 cities in Lyon County, Nevada.