McNab
- County:
- Hempstead County
- County Seat:
- No
- Area (mi²):
- 0.343
- State:
- Arkansas
McNab is a town located in Hempstead County, Arkansas. McNab has a 2026 population of 30. McNab is currently growing at a rate of 3.45% annually and its population has decreased by 0% since the most recent census, which recorded a population of 30 in 2020.
The median age in McNab is 20.5 years: 20.3 years for males, and 41.9 years for females. For every 100 females there are 508.3 males.