Banner township
- County:
- Cavalier County
- County Seat:
- No
- Area (mi²):
- 29.084
- State:
- North Dakota
Banner township is located in Cavalier County, North Dakota. Banner township has a 2026 population of 23. Banner township is currently declining at a rate of 0% annually and its population has decreased by -4.17% since the most recent census, which recorded a population of 24 in 2020.
The median age in Banner township is 59 years: 59.5 years for males, and 57.5 years for females. For every 100 females there are 100.0 males.