Clarksville is a village in Ionia County in the U.S. state of Michigan. As of the 2000 census, the village population was 317. The village is within Campbell Township. The Clarksville ZIP code 48815 serves the northern portion of the township as well the southern portion of Boston Township and small portions of Odessa Township on the east and Bowne Township in Kent County on the west.
According to the United States Census Bureau, the village has a total area of 0.5 square miles (1.3 km²), all land.
As of the census of 2000, there are 317 people, 140 households, and 81 families residing in the village. The population density is 625.3 per square mile (240.0/km²). There are 148 housing units at an average density of 292.0 per square mile (112.0/km²). The racial makeup of the village is 96.53% White, 0.32% African American, 0.32% from other races, and 2.84% from two or more races. 1.89% of the population are Hispanic or Latino of any race.