Mill Spring, MO
Mill Spring is a village in Wayne County, Missouri, United States, along the Black River. The population was 219 at the 2000 census.
Mill Spring is located at 37°3′48″N 90°40′54″W / 37.06333°N 90.68167°W / 37.06333; -90.68167 (37.063306, -90.681616).
According to the United States Census Bureau, the village has a total area of 0.2 square miles (0.5 km²), all of it land.