
Clay City township
- County:
- Clay County
- County Seat:
- No
- Area (mi²):
- 40.231
- State:
- Illinois
Clay City township is located in Clay County, Illinois. Clay City township has a 2025 population of 1,090. Clay City township is currently declining at a rate of -0.64% annually and its population has decreased by -3.8% since the most recent census, which recorded a population of 1,133 in 2020.
The average household income in Clay City township is $78,178 with a poverty rate of 20.5%. The median age in Clay City township is 34.7 years: 40.3 years for males, and 29.4 years for females.