
Laenna township
- County:
- Logan County
- County Seat:
- No
- Area (mi²):
- 35.05
- State:
- Illinois
Laenna township is located in Logan County, Illinois. Laenna township has a 2025 population of 510. Laenna township is currently declining at a rate of -0.2% annually and its population has decreased by -1.73% since the most recent census, which recorded a population of 519 in 2020.
The average household income in Laenna township is $75,081 with a poverty rate of 21.6%. The median age in Laenna township is 49.4 years: 46.8 years for males, and 51.3 years for females.