
Springfield township
- County:
- Sangamon County
- County Seat:
- No
- Area (mi²):
- 13.748
- State:
- Illinois
Springfield township is located in Sangamon County, Illinois. Springfield township has a 2025 population of 5,409. Springfield township is currently declining at a rate of -0.55% annually and its population has decreased by -3.05% since the most recent census, which recorded a population of 5,579 in 2020.
The average household income in Springfield township is $56,370 with a poverty rate of 28.47%. The median age in Springfield township is 40.3 years: 38.3 years for males, and 40.7 years for females.