Deep River
- County:
- McHenry County
- County Seat:
- No
- Area (mi²):
- 36.067
- State:
- North Dakota
Deep River is located in McHenry County, North Dakota. Deep River has a 2025 population of 41 . Deep River is currently declining at a rate of 0% annually and its population has decreased by -4.65% since the most recent census, which recorded a population of 43 in 2020.
The median age in Deep River is 10.6 years: 10.5 years for males, and 38.1 years for females. For every 100 females there are 123.5 males.