Allendale township
- County:
- Grand Forks County
- County Seat:
- No
- Area (mi²):
- 35.957
- State:
- North Dakota
Allendale township is located in Grand Forks County, North Dakota. Allendale township has a 2026 population of 553. Allendale township is currently growing at a rate of 0.36% annually and its population has decreased by 0% since the most recent census, which recorded a population of 553 in 2020.
The median household income in Allendale township is $137,539 with a poverty rate of 11.6%. The median age in Allendale township is 49.4 years: 49 years for males, and 56.2 years for females. For every 100 females there are 101.0 males.