Truckee is an incorporated town in Nevada County, California, United States. As of the 2010 United States Census, the population was 16,180, reflecting an increase of 2,316 from the 13,864 counted in the 2000 Census and having the 316th highest population in California and 2114th in the United States.

Nevada County is a county located in the U.S. state of California, in the Sierra Nevada. As of the 2020 census, its population was 102,241. The county seat is Nevada City. Nevada County comprises the Truckee-Grass Valley micropolitan statistical area, which is also included in the Sacramento-Roseville combined statistical area, part of the Mother Lode Country.