Holmes County covers 422 square miles and is divided into 13 townships. Seven incorporated villages and more than a dozen unincorporated rural settlements and parishes are spread throughout the county. Centrally located, Millersburg, the county seat, is the largest is most populace of these small towns with nearly 3,500 residents.

Townships
Berlin
Clark
Hardy
Killbuck
Knox
Mechanic
Monroe
Paint
Prairie
Ripley
Salt Creek
Walnut Creek
Washington

Villages
Baltic
Glenmont
Holmesville
Killbuck
Loundonville
Millersburg
Nashville

Unincorporated communities
Berlin
Big Prairie
Charm
Lakeville
Mt. Hope
Walnut Creek
Winesburg