Round Lake is a city in Nobles County, Minnesota, United States. The population was 376 at the 2010 census.GeographyAccording to the United States Census Bureau, the city has a total area of 1.04sqmi, of which, 1.03sqmi is land and 0.01sqmi is water. A lake, also called Round Lake, is just outside the city to the northeast. The town of Round Lake is located in the extreme southeast corner of Nobles County. It lies one-half miles west of the Jackson County line, and two miles (3 km) north of Iowa.Main highways include: 20px Minnesota State Highway 26420px Nobles County Road 120px Nobles County Road 3
