
Rubicon township
- County:
- Greene County
- County Seat:
- No
- Area (mi²):
- 35.67
- State:
- Illinois
Rubicon township is located in Greene County, Illinois. Rubicon township has a 2025 population of 280. Rubicon township is currently declining at a rate of -1.06% annually and its population has decreased by -5.41% since the most recent census, which recorded a population of 296 in 2020.
The average household income in Rubicon township is $104,338 with a poverty rate of 22.51%. The median age in Rubicon township is 31.7 years: 41.6 years for males, and 29 years for females.