
New Athens township
- County:
- St. Clair County
- County Seat:
- No
- Area (mi²):
- 34.004
- State:
- Illinois
New Athens township is located in St. Clair County, Illinois. New Athens township has a 2025 population of 2,373. New Athens township is currently declining at a rate of -1.25% annually and its population has decreased by -6.06% since the most recent census, which recorded a population of 2,526 in 2020.
The average household income in New Athens township is $74,823 with a poverty rate of 9.19%. The median age in New Athens township is 52.7 years: 51.2 years for males, and 53.6 years for females.