Delaware State Senate · 2026 general · 11 of 21 seats up

Democrats keep a majority in the Delaware State Senate

Democrats hold 15 seats and Republicans 6; 11 make a majority.

11 for a majorityBefore the electionD 15R 6AfterD 15R 6D 0 · R 0

0 seats flipped to Democrats0 to Republicans

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

0Seats flipped0 to Democrats, 0 to Republicans
0Incumbents defeatedIn the general election
2Open seatsNo incumbent on the ballot
3Uncontested seats2 Democratic, 1 Republican
0Decided by under 5 pointsCalled and uncalled
D +17.2Median swingContested districts, from the last race on the same lines

Source: Results and race calls: Delaware Department of Elections (unofficial)Updated Nov 7, 2026, 3:01 PM ET

Every race, by how close it was

All 11 races by the winner’s margin, D − R. The shaded band holds the 0 races decided by under 5 points. Ringed dots flipped; amber dots are still being counted. The 3 seats won without an opponent sit at the ends.

  • Democratic
  • Republican
  • Counting
  • Flipped
  • Under 5 points
R+60R+40R+20EvenD+20D+40D+60ClosestSD-20 R+13.0

Unofficial returns. Source: Results and race calls: Delaware Department of Elections (unofficial)Updated Nov 7, 2026, 3:01 PM ET

Source: Results and race calls: Delaware Department of Elections (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 +17.2.

012D+8D+10D+13D+15D+18D+20Median D +17.2

5 contested districts; districts uncontested in either election are left out.

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

Delaware State Senate in other elections

Also on this ballot

Sources