Staggered Senate
Senators serve terms of two or four years in a set pattern each decade, so a different share of the seats is on the ballot each election: 39 of 59 in 2026.
Illinois › Illinois State Senate · November 3, 2026 · Updated Oct 16, 2026
Illinois Legislative District 39
Don Harmon has no major-party opponent.
Don Harmon has no major-party opponent.
How this race is decided
The candidates
DemocraticIncumbent
Don Harmon
- Experience
- State legislature
The district
Lean D+46: how much more Democratic or Republican than the nation it votes for president.
Presidential vote
Precinct results re-aggregated to the current district lines.
Who lives here
- Population
- 209,134
- People per km²
- 1,787
- Adults with a B.A.+
- 38%
- White, no degree
- 22%of adults
- White 41%
- Hispanic 39%
- Black 14%
- Asian 3%
- Other / multiracial 3%
American Community Survey 2020–2024, aggregated from census tracts.
Past results
Results in the same-numbered district; earlier elections may have used different lines.
2024 President Vote in this district
85,118 two-party votes · D+44.2 · D+45.7 vs. the nation✓ Kamala Harris (D)72.1%
Donald Trump (R)27.9%
2022
47,658 votes · Uncontested by the other party✓ Don Harmon (D)100.0%
2020 President Vote in this district
93,373 two-party votes · D+52.7 · D+48.1 vs. the nation✓ Joe Biden (D)76.3%
Donald Trump (R)23.7%
2018 Earlier district lines
54,149 votes · Uncontested by the other party✓ Don Harmon (D)100.0%
2016 President Vote in this district
84,825 two-party votes · D+57.2 · D+55.0 vs. the nation✓ Hillary Clinton (D)78.6%
Donald Trump (R)21.4%
2014 Earlier district lines
39,526 votes · Uncontested by the other party✓ Don Harmon (D)100.0%