Sierra County » Sir
»
|
Sierra County Sierra County » SIR Place » City California 43 views 💖 1 |
|
Sierra County is a county located in the U.S. state of California. As of the 2020 census, the population was 3,236, making it California's second-least populous county. The county seat is Downieville; the sole incorporated city is Loyalton. The county is in the Sierra Nevada, northeast of Sacramento on the border with Nevada. | |