Loyalton is the only incorporated city in Sierra County, California. At the 2020 census, the population was 740. Many of the population are ranchers, loggers, former loggers, or suburbanites who have relocated from the San Francisco Bay Area, Sacramento, and growing Reno–Tahoe area.
Milton Gottardi Museum Preserves the History of the Sierra Valley including Loyalton Main Street, Homes & Schools, Logging, Ranching, Ice Harvesting and Railroads. Townsites include Calpine, Sattley, Sierraville, and Loyalton.
