Illinois 34th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Barack Obama2008
60.9%
54,273 votes · D+23.9 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 60.4%
Republican
Warren G. Harding1920
76.4%
12,655 votes · R+60.4 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 76.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
54,273votes
60.9% of the vote · D+23.9 · modeled estimate
Runner-up · Joe Biden, 2020 · 47,990 votes
Republican
Ronald Reagan1984
37,361votes
53.0% of the vote · R+6.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 36,966 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Barack Obama2008
+16.6pts D vs U.S.
Place D+23.9 · U.S. D+7.3 · modeled estimate
Runner-up · John Kerry, 2004 · +13.1 pts
Republican
Theodore Roosevelt1904
+39.6pts R vs U.S.
Place R+59.2 · U.S. R+19.7 · modeled estimate
Runner-up · William McKinley, 1896 · +38.6 pts
current representation
Current officeholders
DSteve StadelmanState Senate · 34
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 2 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
R
29.5%23,655
70.5%56,494
80,149
2020
R
44.4%42,761
55.6%53,615
96,376
Illinois 34th State Senate District sits in the Upper Midwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 23.9 points in 2008 and a Republican high of 60.4 points in 1920. Between 2020 and 2024 the district moved 2.3 points toward the Republican candidate; the 2024 margin was 10.3 points.
A population of 216,908, a 55% non-Hispanic-white share, and a median household income of $58,175 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 2 and State Senate District 23.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Illinois 34th State Senate District. Akashic. https://akashic.app/sld-upper/17034/. Accessed May 20, 2026. License: CC BY 4.0.
How did Illinois 34th State Senate District vote in 2024?
In 2024, Illinois 34th State Senate District voted Democratic by 10.3 points (D+10.3), carried by the Democratic candidate. Out of 81,875 votes cast, 44,282 went Democratic and 35,848 went Republican.
When did Illinois 34th State Senate District last vote Republican?
The most recent presidential election in which Illinois 34th State Senate District voted Republican was 1984.
How many people live in Illinois 34th State Senate District?
Illinois 34th State Senate District has a population of 216,908 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 34th State Senate District?
Median household income in Illinois 34th State Senate District is $58,175 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 34th State Senate District?
Akashic tracks 38 presidential elections in Illinois 34th State Senate District from 1876 to 2024. Of those, 16 went Democratic and 21 went Republican.