
Copley township
- County:
- Knox County
- County Seat:
- No
- Area (mi²):
- 35.073
- State:
- Illinois
Copley township is located in Knox County, Illinois. Copley township has a 2025 population of 376. Copley township is currently declining at a rate of -0.79% annually and its population has decreased by -4.57% since the most recent census, which recorded a population of 394 in 2020.
The average household income in Copley township is $116,577 with a poverty rate of 3.83%. The median age in Copley township is 35.4 years: 32.7 years for males, and 35.8 years for females.