
Peru township
- County:
- LaSalle County
- County Seat:
- No
- Area (mi²):
- 17.476
- State:
- Illinois
Peru township is located in LaSalle County, Illinois. Peru township has a 2025 population of 10,010. Peru township is currently declining at a rate of -0.01% annually and its population has decreased by -1.4% since the most recent census, which recorded a population of 10,152 in 2020.
The average household income in Peru township is $88,000 with a poverty rate of 9.28%. The median age in Peru township is 46.9 years: 46.2 years for males, and 47.8 years for females.