Download Boundary Data by Individual County  
 
Adams Coshocton Hamilton Logan Noble Shelby
Allen Crawford Hancock Lorain Ottawa Stark
Ashland Cuyahoga Hardin Lucas Paulding Summit
Ashtabula Darke Harrison Madison Perry Trumbull
Athens Defiance Henry Mahoning Pickaway Tuscarawas
Auglaize Delaware Highland Marion Pike Union
Belmont Erie Hocking Medina Portage Van Wert
Brown Fairfield Holmes Meigs Preble Vinton
Butler Fayette Huron Mercer Putnam Warren
Carroll Franklin Jackson Miami Richland Washington
Champaign Fulton Jefferson Monroe Ross Wayne
Clark Gallia Knox Montgomery Sandusky Williams
Clermont Geauga Lake Morgan Scioto Wood
Clinton Greene Lawrence Morrow Seneca Wyandot
Columbiana Guernsey Licking Muskingum