
Essex township
- County:
- Kankakee County
- County Seat:
- No
- Area (mi²):
- 36.125
- State:
- Illinois
Essex township is located in Kankakee County, Illinois. Essex township has a 2025 population of 540. Essex township is currently declining at a rate of -2% annually and its population has decreased by -6.74% since the most recent census, which recorded a population of 579 in 2020.
The average household income in Essex township is $89,362 with a poverty rate of 5.63%. The median age in Essex township is 49.3 years: 49.2 years for males, and 51.5 years for females.