Spring Grove is a city in Houston County, Minnesota, United States. The population was 1,330 at the 2010 census. It is part of the La Crosse-…Spring Grove is a city in Houston County, Minnesota, United States. The population was 1,330 at the 2010 census. It is part of the La Crosse-Onalaska, WI-MN Metropolitan Statistical Area. A post office has been in operation at Spring Grove since 1855. The community was named for a spring and a grove near the original town site.