Round Lake City is a small city located in Nobles County, Minnesota, United States. It has a population of approximately 376 people as of the 2010 census. The city covers an area of 0.60 square miles. Round Lake City is known for its small-town atmosphere, friendly community, and scenic lakeside location. It offers a range of recreational activities, such as fishing, boating, and hiking, making it a popular destination for outdoor enthusiasts.