- Lead
- 4,000
- Total
- 62,117
- vs nation
- R+5.0
Illinois 70th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 2,094
- Total
- 60,945
- vs nation
- R+7.9
- Lead
- 4,866
- Total
- 50,104
- vs nation
- R+11.8
- Lead
- 7,175
- Total
- 47,002
- vs nation
- R+19.1
- Lead
- 1,940
- Total
- 49,258
- vs nation
- R+11.2
- Lead
- 11,790
- Total
- 45,311
- vs nation
- R+23.6
- Lead
- 10,126
- Total
- 37,561
- vs nation
- R+27.5
- Lead
- 5,817
- Total
- 30,431
- vs nation
- R+27.6
Key facts
- 2024 presidential margin
- R+6.4MIT Election Lab
- Population
- 108,5892024 5-year
- Population density
- 257 / sq mi2024 5-year · TIGER/Line
- Land area
- 422 sq miTIGER/Line
- Median household income
- $115,8142024 5-year
- White (non-Hispanic)
- 79.2%2024 5-year
- Black
- 2.2%2024 5-year
- Hispanic / Latino
- 10.8%2024 5-year
- Peak Republican margin
- R+78.0 in 1920MIT Election Lab
- Most similar
- State House District 65, IL · twin score 94.0
presidential history
Party record book
Illinois 70th 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
47.3%
23,292 votes · R+3.9 · modeled estimate
Runner-up · Joe Biden, 2020 · 47.2%
Republican
Warren G. Harding1920
87.7%
9,124 votes · R+78.0 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 82.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
28,794votes
47.2% of the vote · R+3.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 28,472 votes
Republican
Donald Trump2024
32,472votes
52.3% of the vote · R+6.4 · modeled estimate
Runner-up · Donald Trump, 2020 · 30,888 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
Kamala Harris2024
−5.0pts D vs U.S.
Place R+6.4 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · −7.9 pts
Republican
Charles E. Hughes1916
+58.3pts R vs U.S.
Place R+55.1 · U.S. D+3.1 · modeled estimate
Runner-up · Thomas E. Dewey, 1948 · +53.3 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 | 52.5%25,532 | 47.5%23,059 | 48,591 |
| 2020 | D | 54.5%26,695 | 45.5%22,265 | 48,960 |
Its 2024 presidential margin of R+6.5 ranked among Illinois's closest, against R+3.9 in 2008. The district had about 284,000 residents, 59.7% White alone in the 2024 ACS 5-year.
Across the recorded series it reached a Republican high of 78.0 points in 1920. Between 2020 and 2024 the district moved 3.0 points toward the Republican candidate; the 2024 margin was 6.4 points.
A population of 108,589, a 79% non-Hispanic-white share, and a median household income of $115,814 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 65 and State House District 82.
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 70th State House District. Akashic. https://akashic.app/sld-lower/17070/. Accessed May 20, 2026. License: CC BY 4.0.