Redistricting in Ohio
The following timeline is a high-level overview outlining major redistricting events and activity in the state of Ohio over the last 10 years.
Republicans won trifecta control of the state, meaning that Republicans controlled the governorship and both chambers of the state legislature.
Census data delivered to Ohio.
Republican-controlled legislature drew the congressional map.
Republican Governor John Kasich signed maps into law.
Politician-led redistricting commission approved legislative maps that were challenged in litigation, but ultimately upheld.
President Barack Obama wins Ohio with 51% of the vote and Senator Sherrod Brown wins re-election by 5 points, but gerrymandering helped provide Republicans 75% of the congressional delegation, 61% of the state House and 70% of the state Senate.
A citizen-led reform effort brought Republican state legislators to the table. The parties involved came to an agreement to reform how congressional maps are drawn, sending the compromise to the ballot.
On May 8, 75% of Ohioans voted for the citizen-led bipartisan compromise to make Ohio’s redistricting process less partisan in 2021. And in 2018, Democrats gained seats in both the state House, and a seat in the state Supreme Court.
Democrats flipped seats in the state House on Election Day.