Voltaire
- County:
- McHenry County
- County Seat:
- No
- Area (mi²):
- 34.991
- State:
- North Dakota
Voltaire is located in McHenry County, North Dakota. Voltaire has a 2025 population of 25. Voltaire is currently declining at a rate of 0% annually and its population has decreased by -3.85% since the most recent census, which recorded a population of 26 in 2020.
The median age in Voltaire is 63.8 years: 0 years for males, and 0 years for females.