
Sparta township
- County:
- Randolph County
- County Seat:
- No
- Area (mi²):
- 36.099
- State:
- Illinois
Sparta township is located in Randolph County, Illinois. Sparta township has a 2025 population of 1,018. Sparta township is currently declining at a rate of -0.49% annually and its population has decreased by -3.96% since the most recent census, which recorded a population of 1,060 in 2020.
The average household income in Sparta township is $75,699 with a poverty rate of 11.58%. The median age in Sparta township is 34.8 years: 34.1 years for males, and 38.3 years for females.