
Westfield township
- County:
- Clark County
- County Seat:
- No
- Area (mi²):
- 17.764
- State:
- Illinois
Westfield township is located in Clark County, Illinois. Westfield township has a 2025 population of 619. Westfield township is currently declining at a rate of -0.8% annually and its population has decreased by -4.33% since the most recent census, which recorded a population of 647 in 2020.
The average household income in Westfield township is $75,441 with a poverty rate of 6.53%. The median age in Westfield township is 53.3 years: 47.6 years for males, and 58.3 years for females.