Oak
- County:
- Nuckolls County
- County Seat:
- No
- Area (mi²):
- 0.152
- State:
- Nebraska
Oak is a village located in Nuckolls County, Nebraska. Oak has a 2026 population of 52. Oak is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 52 in 2020.
The median household income in Oak is $56,818 with a poverty rate of 28.41%. The median age in Oak is 38.9 years: 38.5 years for males, and 46.5 years for females. For every 100 females there are 144.4 males.