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 35
Dave Syverson has no major-party opponent.
Dave Syverson has no major-party opponent.
How this race is decided
The candidates
RepublicanIncumbent
Dave Syverson
Independent
Sarah B. Mertens
The district
Lean R+9: 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
- 207,926
- People per km²
- 85
- Adults with a B.A.+
- 41%
- White, no degree
- 47%of adults
- White 76%
- Hispanic 15%
- Black 2%
- Asian 4%
- 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
117,325 two-party votes · R+9.8 · R+8.3 vs. the nation✓ Donald Trump (R)54.9%
Kamala Harris (D)45.1%
2022
65,233 votes · Uncontested by the other party✓ Dave Syverson (R)100.0%
2020 President Vote in this district
118,238 two-party votes · R+6.7 · R+11.2 vs. the nation✓ Donald Trump (R)53.3%
Joe Biden (D)46.7%
2018 Earlier district lines
62,422 votes · Uncontested by the other party✓ Dave Syverson (R)100.0%
2016 Earlier district lines
78,269 votes · Uncontested by the other party✓ Dave Syverson (R)100.0%
2016 President Vote in this district
92,777 two-party votes · R+12.8 · R+15.0 vs. the nation✓ Donald Trump (R)56.4%
Hillary Clinton (D)43.6%