Fifteen members were reelected. One incumbent Democrat withdrew from their election after being renominated, while one incumbent Republican lost his primary. No seat changed parties.
Democrats ran nominees in the races for all seventeen seats. Republicans ran nominees in ten races, while the Green Party ran a nominee in a single race. Five Democratic faced no opponents in the general election, four of whom also had faced no opponents in their Democratic Party primary.
No candidates, ballot-certified or formal write-in, ran in the Republican primary.[2][3] The Republican Party ultimately nominated Henrietta S. Butler.[4]
Incumbent commissioner Robert Steele, a Democrat, was reelected. He had been appointed to succeed his mother Bobbie L. Steele, after they were appointed President of the Cook County Board of Commissioners.
Then-incumbent Commissioner John Stroger originally sought reelection, winning the Democratic primary, but backed-out due to health issues (and also resigned his seat), and was replaced as Democratic nominee by William Beavers, who went to win the general election.
No candidates, ballot-certified or formal write-in, ran in the Republican primary.[2][3] Ultimately, the Republican Party nominated Ann Rochelle Hunter.[6]
No candidates, ballot-certified or formal write-in, ran in the Democratic primary.[2] The Democratic Party ultimately nominated Michelene "Mickie" Polk.[7]
Incumbent eighth-term[8] Commissioner Carl Hansen, a Republican, sought reelection, but was defeated in the Republican primary by Tim Schneider, who went on to win the general election.