Onton
- County:
- Webster County
- County Seat:
- No
- Area (mi²):
- 0.825
- State:
- Kentucky
Onton is a CDP located in Webster County, Kentucky. Onton has a 2025 population of 10 . Onton is currently declining at a rate of -44.44% annually and its population has decreased by -44.44% since the most recent census, which recorded a population of 18 in 2020.
The median age in Onton is 38.6 years: 38.6 years for males, and 14.9 years for females. For every 100 females there are 66.2 males.