2026 Cook County Board of Commissioners election

2026 Cook County Board of Commissioners election

November 3, 2026

All 17 seats on the Cook County Board of Commissioners
9 seats needed for a majority
  First party Second party
 
Party Democratic Republican
Seats before 16 1

The 2026 Cook County Board of Commissioners election will see all seventeen seats of the Cook County Board of Commissioners up for election to four-year terms. The election coinsides with other 2026 Cook County, Illinois, elections (including an election for the president of the Board of Commissioners) with the primary elections to be held on March 17, 2026 and the general election to be held on November 3, 2026.

The Republican Party is running candidates in only 5 of the 19 Board of Commissioners districts. Sean Morrison, the board's only Republican member, is not seeking re-election.