- Lead
- 24,700
- Total
- 45,235
- vs nation
- D+56.1
Illinois 34th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 32,292
- Total
- 51,821
- vs nation
- D+57.9
- Lead
- 34,839
- Total
- 52,802
- vs nation
- D+63.9
- Lead
- 32,508
- Total
- 48,620
- vs nation
- D+63.0
- Lead
- 36,871
- Total
- 52,498
- vs nation
- D+63.0
- Lead
- 30,003
- Total
- 47,572
- vs nation
- D+65.5
- Lead
- 27,377
- Total
- 42,163
- vs nation
- D+64.4
- Lead
- 25,346
- Total
- 38,403
- vs nation
- D+57.5
Key facts
- 2024 presidential margin
- D+54.6MIT Election Lab
- Population
- 108,4292024 5-year
- Population density
- 375 / sq mi2024 5-year · TIGER/Line
- Land area
- 289 sq miTIGER/Line
- Median household income
- $64,0122024 5-year
- White (non-Hispanic)
- 19.6%2024 5-year
- Black
- 66.4%2024 5-year
- Hispanic / Latino
- 10.0%2024 5-year
- Peak Democratic margin
- D+70.2 in 2008MIT Election Lab
- Peak Republican margin
- R+5.2 in 1920MIT Election Lab
- Most similar
- State House District 29, IL · twin score 99.0
presidential history
Party record book
Illinois 34th State House 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
84.9%
44,590 votes · D+70.2 · modeled estimate
Runner-up · Barack Obama, 2012 · 83.2%
Republican
Warren G. Harding1920
49.8%
5,800 votes · R+5.2 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 41.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
44,590votes
84.9% of the vote · D+70.2 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 42,996 votes
Republican
Richard Nixon1972
12,292votes
30.5% of the vote · D+38.8 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 11,621 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
John Kerry2004
+65.5pts D vs U.S.
Place D+63.1 · U.S. R+2.5 · modeled estimate
Runner-up · Walter Mondale, 1984 · +65.0 pts
Republican
William H. Taft1912
−18.0pts R vs U.S.
Place D+37.5 · U.S. D+19.5 · modeled estimate
Runner-up · Warren G. Harding, 1920 · −21.0 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 66.1%28,321 | 33.9%14,539 | 42,860 |
With a 2024 presidential margin of D+55, this district ranks among the most lopsided in the state, likely anchored by dense urban precincts where Democratic presidential candidates routinely clear 75% of the vote.
Across the recorded series it reached a Democratic high of 70.2 points in 2008 and a Republican high of 5.2 points in 1920. Between 2020 and 2024 the district moved 7.7 points toward the Republican candidate; the 2024 margin was 54.6 points.
A population of 108,429, a 20% non-Hispanic-white share, and a median household income of $64,012 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 29 and State House District 33.
The state-house 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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Illinois 34th State House District. Akashic. https://akashic.app/sld-lower/17034/. Accessed May 20, 2026. License: CC BY 4.0.