Pleasant Lake is a neighborhood of the city of Rockville in Stearns County, Minnesota, United States. The population was 504 at the 2000 census. Pleasant Lake was settled about 1890 and incorporated on July 11, 1938. On 1 June 2002, the city of Pleasant Lake and Rockville Township were merged into the city of Rockville. At the center of the community, lies the 400 Supper Club which lines the lakefront of Pleasant Lake.