Round Lake is a city located in Saratoga County New York. With a 2020 population of 920, it is the 433rd largest city in New York and the 10659th largest city in the United States . Round Lake is currently growing at a rate of 8.88% annually and its population has increased by 47.67% since the most recent census, which recorded a population of 623 in 2010. Round Lake reached it's highest population of 920 in 2021. Spanning over 1 miles, Round Lake has a population density of 820 people per square mile.
The average household income in Round Lake is $106,451 with a poverty rate of 3.58%. The median rental costs in recent years comes to $1,294 per month, and the median house value is $218,500. The median age in Round Lake is 45.8 years, 46.6 years for males, and 44 years for females.