Ohio State Senate · 2026 general · 17 of 33 seats up

Republicans keep a majority in the Ohio State Senate

Democrats hold 11 seats and Republicans 22; 17 make a majority. 2 seats changed party.

17 for a majorityBefore the electionD 9R 23AfterD 11R 22D +2 · R −1

2 seats flipped to Democrats0 to Republicans

Seats not up in this election count with their holders. Source: Results and race calls: Ohio Secretary of State (unofficial)Updated Nov 7, 2026, 3:01 PM ET

2Seats flipped2 to Democrats, 0 to Republicans
1Incumbents defeatedIn the general election
8Open seatsNo incumbent on the ballot
1Uncontested seats0 Democratic, 1 Republican
2Decided by under 5 pointsCalled and uncalled
D +12.9Median swingContested districts, from the last race on the same lines

Source: Results and race calls: Ohio Secretary of State (unofficial)Updated Nov 7, 2026, 3:01 PM ET

Every race, by how close it was

All 17 races by the winner’s margin, D − R. The shaded band holds the 2 races decided by under 5 points. Ringed dots flipped; amber dots are still being counted. The seat won without an opponent sits at its end.

  • Democratic
  • Republican
  • Counting
  • Flipped
  • Under 5 points
R+80R+60R+40R+20EvenD+20D+40D+60D+80ClosestSD-13 R+1.5Widest flip to DSD-27 D+7.1

Unofficial returns. Source: Results and race calls: Ohio Secretary of State (unofficial)Updated Nov 7, 2026, 3:01 PM ET

Seats that flipped

Districts that elected the other party.

Incumbents who lost

Members defeated in the general election.

Biggest swings

Change in margin from the last race on the same lines.

Source: Results and race calls: Ohio Secretary of State (unofficial)Updated Nov 7, 2026, 3:01 PM ET

How far each district moved

Change in each contested district’s margin from the previous election, in 2-point bins. The median district moved D +12.9.

01D+12D+13D+13D+14D+14Median D +12.9

1 contested district; districts uncontested in either election are left out.

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)

Ohio State Senate in other elections

Also on this ballot

Sources