Jeffersonville
- County:
- Sullivan County
- County Seat:
- No
- Area (mi²):
- 0.408
- State:
- New York
Jeffersonville is a village located in Sullivan County, New York. Jeffersonville has a 2026 population of 391. Jeffersonville is currently declining at a rate of -0.26% annually and its population has decreased by 0% since the most recent census, which recorded a population of 391 in 2020.