
Waterloo township
- County:
- Lawrence County
- County Seat:
- No
- Area (mi²):
- 37.73
- State:
- Ohio
Waterloo township is located in Lawrence County, Ohio. Waterloo township has a 2025 population of 2,300. Waterloo township is currently declining at a rate of -0.39% annually and its population has decreased by -2.34% since the most recent census, which recorded a population of 2,355 in 2020.
The average household income in Waterloo township is $74,763 with a poverty rate of 3.59%. The median age in Waterloo township is 36.2 years: 39.3 years for males, and 34.5 years for females.