
Auburn
- County:
- DeKalb County
- County Seat:
- Yes
- Area (mi²):
- 8.086
- State:
- Indiana
Auburn is a city located in DeKalb County, Indiana. Auburn has a 2025 population of 14,127. It is also the county seat of DeKalb County. Auburn is currently growing at a rate of 0.86% annually and its population has increased by 4.42% since the most recent census, which recorded a population of 13,529 in 2020.
The average household income in Auburn is $77,584 with a poverty rate of 11.3%. The median age in Auburn is 35.7 years: 34.5 years for males, and 36.6 years for females.