2024Final results
2024 election for Ohio Senate District 18
Ohio State Senate · Ohio
Jerry Cirino (R) won with 54.1% of the vote, defeating Katie O'Neill (D) by 8.1 points.
Jerry CirinoRepublican · winner
54.1%106,470
Katie O'NeillDemocrat
45.9%90,464
The same year, the district voted R+3.1 for president; this race was R+8.1.196,934 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
The seat over time
D − R margin in this seat's races around 2024
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET