
Wenona
- County:
- Marshall County
- County Seat:
- No
- Area (mi²):
- 0.736
- State:
- Illinois
Wenona is a city located in Marshall County, Illinois. Wenona has a 2025 population of 965. Wenona is currently declining at a rate of -0.21% annually and its population has decreased by -1.03% since the most recent census, which recorded a population of 975 in 2020.
The average household income in Wenona is $57,870 with a poverty rate of 21.07%. The median age in Wenona is 37.2 years: 37.9 years for males, and 36.2 years for females.