Round Lake is a city located in Nobles County Minnesota. With a 2020 population of 364, it is the 551st largest city in Minnesota and the 14613th largest city in the United States . Round Lake is currently declining at a rate of -0.55% annually and its population has decreased by -3.19% since the most recent census, which recorded a population of 376 in 2010. Round Lake reached it's highest population of 380 in 2013. Spanning over 1 miles, Round Lake has a population density of 530 people per square mile.
The average household income in Round Lake is $52,175 with a poverty rate of 15.00%. The median rental costs in recent years comes to $625 per month, and the median house value is $58,200. The median age in Round Lake is 49.4 years, 45.3 years for males, and 50.8 years for females.