
Pecatonica township
- County:
- Winnebago County
- County Seat:
- No
- Area (mi²):
- 34.918
- State:
- Illinois
Pecatonica township is located in Winnebago County, Illinois. Pecatonica township has a 2025 population of 4,073. Pecatonica township is currently declining at a rate of -0.15% annually and its population has decreased by -1.74% since the most recent census, which recorded a population of 4,145 in 2020.
The average household income in Pecatonica township is $111,689 with a poverty rate of 4.55%. The median age in Pecatonica township is 45.2 years: 39.4 years for males, and 49.5 years for females.