Pontoon Beach
- County:
- Madison County
- County Seat:
- No
- Area (mi²):
- 9.827
- State:
- Illinois
Pontoon Beach is a village located in Madison County, Illinois. Pontoon Beach has a 2026 population of 5,845. Pontoon Beach is currently growing at a rate of 0.53% annually but its population has decreased by -0.2% since the most recent census, which recorded a population of 5,857 in 2020.