Gaston
- County:
- Delaware County
- County Seat:
- No
- Area (mi²):
- 0.364
- State:
- Indiana
Gaston is a town located in Delaware County, Indiana. Gaston has a 2026 population of 806. Gaston is currently growing at a rate of 0.62% annually and its population has increased by 1.13% since the most recent census, which recorded a population of 797 in 2020.