Pontoon Beach is a city located in Illinois. With a 2020 population of 5,565, it is the 310th largest city in Illinois and the 4477th largest city in the United States . Pontoon Beach is currently declining at a rate of -0.68% annually and its population has decreased by -4.64% since the most recent census, which recorded a population of 5,836 in 2010. Pontoon Beach reached it's highest population of 5,859 in 2010. Spanning over 12 miles, Pontoon Beach has a population density of 558 people per square mile.
The average household income in Pontoon Beach is $62,929 with a poverty rate of 15.54%. The median rental costs in recent years comes to $849 per month, and the median house value is $95,200. The median age in Pontoon Beach is 35.1 years, 36.1 years for males, and 34.9 years for females.