1 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Loyalton | 1 | 705 | 740 | -0.98% | 1,980 | 0 | City |
Loyalton is the largest city in Sierra County, with a population of 705.
Loyalton is the smallest city in Sierra County, with a population of 705.
There is 1 city in Sierra County, California.