
Greenup township
- County:
- Cumberland County
- County Seat:
- No
- Area (mi²):
- 47.445
- State:
- Illinois
Greenup township is located in Cumberland County, Illinois. Greenup township has a 2025 population of 2,204. Greenup township is currently declining at a rate of -0.5% annually and its population has decreased by -2.65% since the most recent census, which recorded a population of 2,264 in 2020.
The average household income in Greenup township is $82,848 with a poverty rate of 6.9%. The median age in Greenup township is 38.1 years: 39.4 years for males, and 37.7 years for females.