
Havana township
- County:
- Mason County
- County Seat:
- No
- Area (mi²):
- 57.861
- State:
- Illinois
Havana township is located in Mason County, Illinois. Havana township has a 2025 population of 4,085. Havana township is currently declining at a rate of -1.42% annually and its population has decreased by -6.86% since the most recent census, which recorded a population of 4,386 in 2020.
The average household income in Havana township is $75,910 with a poverty rate of 15.94%. The median age in Havana township is 43.8 years: 44.7 years for males, and 41.4 years for females.