Chester township
- County:
- Randolph County
- County Seat:
- No
- Area (mi²):
- 38.301
- State:
- Illinois
Chester township is located in Randolph County, Illinois. Chester township has a 2026 population of 647. Chester township is currently growing at a rate of 0.15% annually but its population has decreased by -0.77% since the most recent census, which recorded a population of 652 in 2020.
The median household income in Chester township is $98,636 with a poverty rate of 3.16%. The median age in Chester township is 49.8 years: 44.7 years for males, and 52.8 years for females. For every 100 females there are 87.5 males.