Millerstown is an unincorporated community in eastern Johnson Township, Champaign County, Ohio, United States.
[1] It lies at the intersection of Heck Hill, Ward, and Zimmerman Roads, 2+1⁄2 miles (4.0 km) north of U.S. Route 36.
Nettle Creek, a tributary of the Mad River, flows past Millerstown.
It is located approximately 4 miles (6½ km) northeast of the city of St. Paris and 10 miles (16 km) west-northwest of the city of Urbana, the county seat of Champaign County.
This Champaign County, Ohio state location article is a stub.