Kelly township
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 35.138
- State:
- Illinois
Kelly township is located in Warren County, Illinois. Kelly township has a 2026 population of 353. Kelly township is currently declining at a rate of -0.56% annually and its population has decreased by -4.34% since the most recent census, which recorded a population of 369 in 2020.
The median household income in Kelly township is $125,405 with a poverty rate of 8.74%. The median age in Kelly township is 35.9 years: 27.7 years for males, and 43.2 years for females. For every 100 females there are 126.6 males.