North Olga
- County:
- Cavalier County
- County Seat:
- No
- Area (mi²):
- 41.679
- State:
- North Dakota
North Olga is located in Cavalier County, North Dakota. North Olga has a 2025 population of 51 . North Olga 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 is 34.9 years: 34.4 years for males, and 0 years for females. For every 100 females there are 200.0 males.