District Maps

Every 10 years, following the decennial census, Ohio General Assembly and Congressional districts are redrawn to reflect changes in the state’s population in two parallel, but separate processes. The goal of each is to preserve the important one person-one vote principle – that all citizens are equally represented at the Statehouse and in the United States Capitol.

District Maps for 2012-2022:

General Assembly	Congressional Districts
House Map Senate Map Maps by county Cuyahoga County Franklin County Hamilton County Lucas County Mahoning County Montgomery County Stark/Summit Counties House District Maps (PDF) Senate District Maps (PDF) Equivalency File for Adopted House Map (ZIP) Equivalency File for Adopted Senate Map (ZIP) Shape File for Adopted House Map (ZIP) Shape File for Adopted Senate Map (ZIP) Readme file for maps (PDF)	Enacted Ohio Congressional Districts (PDF) Equivalency File (ZIP)* SHAPE Files (ZIP)
State Board of Education Districts (PDF) Appeals Court Districts (PDF)
*Equivalency Files are compressed DBF files that can be opened in Excel.

 

Historical District Maps

• Ohio District Maps, 1972-1982 (PDF)
• Ohio District Maps, 1982-1992 (PDF)
• Ohio District Maps, 1992-2002 (PDF)
• Ohio District Maps, 2002-2012:
  • Appeals Court Districts (PDF)
  • Apportionment Map Legal Description (PDF)
  • Board of Education Districts (PDF)
  • Congressional Districts (PDF)
    • Congressional Districts Shape Files (ZIP)
      For GIS Programs (Like ArcView)
  • House Districts (PDF)
    • House District Shape Files (ZIP)
      For GIS Programs (like ArcView)
  • Senate Districts (PDF)
    • Senate District Shape Files (ZIP)
      For GIS Programs (Like ArcView)