The 2026 Wisconsin State Assembly election will take place on November 3, 2026.

All 99 seats in the Wisconsin State Assembly are up for election.

Republicans represented five districts where Harris had won in 2024: District 21 (Harris +4.05%), represented by Jessie Rodriguez; District 51 (Harris +3.49%), represented by Todd Novak; District 53 (Harris +4.35%), represented by Dean Kaufert; District 61 (Harris +2.20%), represented by Bob Donovan; and District 88 (Harris +0.35%), represented by Ben Franklin.

Following redistricting as a result of the Wisconsin Supreme Court's decision in Clarke v. Wisconsin Elections Commission, the 2024 Wisconsin State Assembly election saw the Democrats gain 10 seats, putting them at 45 seats to the Republicans' 54.

The Democratic Party had also gained 4 seats in the simultaneous state senate election.