Caro is a village in the U.S. state of Michigan. As of the 2000 census, the village had a total population of 4,145. It is the county seat of Tuscola County6.
According to the United States Census Bureau, the village has a total area of 6.2 km2 (2.4 mi2). 6.1 km2 (2.4 mi2) of it is land and 0.1 km2 (0.04 mi2) of it is water. The total area is 0.84% water.