
West Deerfield township
- County:
- Lake County
- County Seat:
- No
- Area (mi²):
- 17.794
- State:
- Illinois
West Deerfield township is located in Lake County, Illinois. West Deerfield township has a 2025 population of 31,249. West Deerfield township is currently declining at a rate of -0.12% annually and its population has decreased by -0.97% since the most recent census, which recorded a population of 31,556 in 2020.
The average household income in West Deerfield township is $279,449 with a poverty rate of 2.22%. The median age in West Deerfield township is 44.5 years: 44.1 years for males, and 45.3 years for females.