Round Lake is a city located in New York. With a 2020 population of 796, it is the 457th largest city in New York and the 11311th largest city in the United States. Round Lake is currently growing at a rate of 6.85% annually and its population has increased by 27.77% since the most recent census, which recorded a population of 623 in 2010. Spanning over 1 miles, Round Lake has a population density of 709 people per square mile.
The average household income in Round Lake is $104,140 with a poverty rate of 3.67%. The median rental costs in recent years comes to $1,199 per month, and the median house value is $206,600. The median age in Round Lake is 49.3 years, 50.3 years for males, and 47.8 years for females. For every 100 females there are 91.7 males.