Auburn
- County:
- Nemaha County
- County Seat:
- Yes
- Area (mi²):
- 2.18
- State:
- Nebraska
Auburn is a city located in Nemaha County, Nebraska. Auburn has a 2026 population of 3,473. It is also the county seat of Nemaha County. Auburn is currently declining at a rate of -0.6% annually and its population has decreased by -0.29% since the most recent census, which recorded a population of 3,483 in 2020.