Waterloo township
- County:
- Cavalier County
- County Seat:
- No
- Area (mi²):
- 35.342
- State:
- North Dakota
Waterloo township is located in Cavalier County, North Dakota. Waterloo township has a 2026 population of 36. Waterloo township is currently declining at a rate of -2.7% annually and its population has decreased by -5.26% since the most recent census, which recorded a population of 38 in 2020.
The median age in Waterloo township is 18.4 years: 18.2 years for males, and 18.6 years for females. For every 100 females there are 145.0 males.