- Lead
- 22,062
- Total
- 55,015
- vs nation
- D+41.6
Illinois 38th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 26,106
- Total
- 59,138
- vs nation
- D+39.7
- Lead
- 24,319
- Total
- 54,717
- vs nation
- D+42.4
- Lead
- 21,287
- Total
- 50,340
- vs nation
- D+38.4
- Lead
- 25,351
- Total
- 53,270
- vs nation
- D+40.3
- Lead
- 17,624
- Total
- 49,413
- vs nation
- D+38.1
- Lead
- 16,313
- Total
- 42,495
- vs nation
- D+37.9
- Lead
- 15,777
- Total
- 37,766
- vs nation
- D+33.3
Key facts
- 2024 presidential margin
- D+40.1MIT Election Lab
- Population
- 108,6012024 5-year
- Population density
- 1,847 / sq mi2024 5-year · TIGER/Line
- Land area
- 58.8 sq miTIGER/Line
- Median household income
- $96,8772024 5-year
- White (non-Hispanic)
- 40.2%2024 5-year
- Black
- 47.4%2024 5-year
- Hispanic / Latino
- 7.0%2024 5-year
- Peak Democratic margin
- D+47.6 in 2008MIT Election Lab
- Peak Republican margin
- R+39.5 in 1920MIT Election Lab
- Most similar
- State House District 29, IL · twin score 96.3
presidential history
Party record book
Illinois 38th 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
73.5%
39,158 votes · D+47.6 · modeled estimate
Runner-up · Joe Biden, 2020 · 71.4%
Republican
Warren G. Harding1920
68.1%
9,748 votes · R+39.5 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 59.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
42,244votes
71.4% of the vote · D+44.1 · modeled estimate
Runner-up · Barack Obama, 2008 · 39,158 votes
Republican
Richard Nixon1972
20,389votes
47.6% of the vote · D+4.5 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 20,145 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
Hillary Clinton2016
+42.4pts D vs U.S.
Place D+44.4 · U.S. D+2.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · +41.6 pts
Republican
Warren G. Harding1920
+13.3pts R vs U.S.
Place R+39.5 · U.S. R+26.2 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +7.9 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 | 66.3%29,161 | 33.7%14,817 | 43,978 |
With a 2024 presidential margin exceeding 40 points, this district ranks among the most reliably Democratic in the Illinois House, reflecting a dense, urbanized constituency where competitive general elections are rare.
Across the recorded series it reached a Democratic high of 47.6 points in 2008 and a Republican high of 39.5 points in 1920. Between 2020 and 2024 the district moved 4.0 points toward the Republican candidate; the 2024 margin was 40.1 points.
A population of 108,601, a 40% non-Hispanic-white share, and a median household income of $96,877 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 18.
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 38th State House District. Akashic. https://akashic.app/sld-lower/17038/. Accessed May 20, 2026. License: CC BY 4.0.