North Olga township
- County:
- Cavalier County
- County Seat:
- No
- Area (mi²):
- 41.679
- State:
- North Dakota
North Olga township is located in Cavalier County, North Dakota. North Olga township has a 2026 population of 51. North Olga township is currently declining at a rate of 0% annually and its population has decreased by -1.92% since the most recent census, which recorded a population of 52 in 2020.
The median age in North Olga township is 67.3 years: 67.5 years for males, and 0 years for females. For every 100 females there are 1600.0 males.