The 2018 Ohio Senate election was held on November 6, 2018, with the primary election held on May 8, 2018. Ohio voters elected state senators in the 17 odd-numbered Ohio Senate districts. State senators elected in 2018 were eligible to serve a four-year term beginning January 2019 and ending December 2022. These elections coincided with elections for Ohio governor, the Ohio House, the U.S. House of Representatives, the U.S. Senate, and other statewide offices.
Despite a moderate statewide swing that allowed the Democrats to win the popular vote, the Republicans retained their supermajority of 24 seats in the Senate, compared to the Democrats' nine seats.
Statewide results
Predictions
Results by district
Overview
Detailed results
District 1
Primary results
General election results
District 3
Primary results
General election results
District 5
Primary results
General election results
District 7
Primary results
General election results
District 9
Primary results
General election results
District 11
Primary results
General election results
District 13
Primary results
General election results
District 15
Primary results
General election results
District 17
Primary results
General election results
District 19
Primary results
General election results
District 21
Primary results
General election results
District 23
Primary results
General election results
District 25
Primary results
General election results
District 27
Primary results
General election results
District 29
Primary results
General election results
District 31
Primary results
General election results
District 33
Primary results
General election results
Notes
References