Auburn township
- County:
- Sangamon County
- County Seat:
- No
- Area (mi²):
- 15.806
- State:
- Illinois
Auburn township is located in Sangamon County, Illinois. Auburn township has a 2026 population of 229. Auburn township is currently declining at a rate of -0.87% annually and its population has decreased by -2.14% since the most recent census, which recorded a population of 234 in 2020.
The median household income in Auburn township is $73,403 with a poverty rate of 20.9%. The median age in Auburn township is 46.4 years: 47.9 years for males, and 43.5 years for females. For every 100 females there are 94.6 males.