Heidelberg is a city in Le Sueur County, Minnesota, United States. The population was 137 at the 2020 census. According to the United Stat…Heidelberg is a city in Le Sueur County, Minnesota, United States. The population was 137 at the 2020 census. According to the United States Census Bureau, the city has a total area of 0.524 square miles, all land.
Save
Share
More