Don Harmon
Democratic Incumbent
Biography
Don Harmon is the incumbent state senator for the 39th District and President of the Illinois Senate, per the official legislative website. No campaign website was found as of September 27, 2026.
DuPage County, Illinois
Illinois Senate District 39
DuPage County, Illinois
Illinois Senate District 39
One candidate is tracked for Illinois Senate District 39 on the November 3, 2026 ballot: Don Harmon. Candidate information follows official DuPage County election filings; verify with the official election office linked below.
About this race
Don Harmon (Democratic) is the only candidate on the November 3 ballot; Don Harmon is the sitting member, per the General Assembly's roster. Party nominees were chosen at the March 17 primary (plurality, no runoffs); independent and new-party candidates qualified by petition. The field is the State Board of Elections' 2026 General Election candidate list (status Active, read September 7, 2026). This seat is elected by district; only the district covering your address appears on your ballot.
What this office does
State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.
This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Don Harmon, is on the ballot. One name is on the ballot for this seat.