
Vermillion township
- County:
- LaSalle County
- County Seat:
- No
- Area (mi²):
- 23.048
- State:
- Illinois
Vermillion township is located in LaSalle County, Illinois. Vermillion township has a 2025 population of 377. Vermillion township is currently declining at a rate of 0% annually and its population has decreased by -1.05% since the most recent census, which recorded a population of 381 in 2020.
The average household income in Vermillion township is $102,555 with a poverty rate of 17.34%. The median age in Vermillion township is 48.8 years: 41.3 years for males, and 50.8 years for females.