
Auburn
- County:
- Placer County
- County Seat:
- Yes
- Area (mi²):
- 7.177
- State:
- California
Auburn is a city located in Placer County, California. Auburn has a 2025 population of 13,576. It is also the county seat of Placer County. Auburn is currently declining at a rate of -0.3% annually and its population has decreased by -1.48% since the most recent census, which recorded a population of 13,780 in 2020.
The average household income in Auburn is $113,225 with a poverty rate of 12.75%. The median age in Auburn is 47 years: 44.8 years for males, and 50.4 years for females.