
La Harpe township
- County:
- Hancock County
- County Seat:
- No
- Area (mi²):
- 37.31
- State:
- Illinois
La Harpe township is located in Hancock County, Illinois. La Harpe township has a 2025 population of 1,345. La Harpe township is currently declining at a rate of -0.37% annually and its population has decreased by -2.68% since the most recent census, which recorded a population of 1,382 in 2020.
The average household income in La Harpe township is $72,740 with a poverty rate of 7.48%. The median age in La Harpe township is 45.1 years: 43.9 years for males, and 45.5 years for females.