
Sublette township
- County:
- Lee County
- County Seat:
- No
- Area (mi²):
- 36.518
- State:
- Illinois
Sublette township is located in Lee County, Illinois. Sublette township has a 2025 population of 672. Sublette township is currently declining at a rate of -0.88% annually and its population has decreased by -3.03% since the most recent census, which recorded a population of 693 in 2020.
The average household income in Sublette township is $86,686 with a poverty rate of 10.57%. The median age in Sublette township is 33.8 years: 35 years for males, and 30.1 years for females.