HarrisDemocratic77.1%30,657TrumpRepublican20.2%8,036OtherAll other candidates2.7%1,083
D+56.9- Lead
- 22,621
- Total
- 39,776
- vs nation
- D+58.3
modeled Census-place estimatemodeled estimate
Akashicstate house district
Illinois 103rd State House District
Office (updates table and map)
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
President results by year
Modeled candidate-vote estimate on current district boundaries
BidenDemocratic75.9%32,476TrumpRepublican20.3%8,694OtherAll other candidates3.8%1,646
D+55.5- Lead
- 23,782
- Total
- 42,816
- vs nation
- D+51.1
modeled Census-place estimatemodeled estimate
ClintonDemocratic70.3%30,995TrumpRepublican20.6%9,067OtherAll other candidates9.2%4,057
D+49.7- Lead
- 21,928
- Total
- 44,119
- vs nation
- D+47.6
modeled Census-place estimatemodeled estimate
ObamaDemocratic69.7%25,147RomneyRepublican26.5%9,583OtherAll other candidates3.8%1,370
D+43.1- Lead
- 15,564
- Total
- 36,100
- vs nation
- D+39.3
modeled Census-place estimatemodeled estimate
ObamaDemocratic74.5%29,966McCainRepublican22.8%9,176OtherAll other candidates2.6%1,062
D+51.7- Lead
- 20,790
- Total
- 40,204
- vs nation
- D+44.4
modeled Census-place estimatemodeled estimate
KerryDemocratic69.2%25,597BushRepublican29.3%10,830OtherAll other candidates1.5%568
D+39.9- Lead
- 14,767
- Total
- 36,995
- vs nation
- D+42.4
modeled Census-place estimatemodeled estimate
GoreDemocratic65.8%21,908BushRepublican28.2%9,384OtherAll other candidates6.0%1,988
D+37.6- Lead
- 12,524
- Total
- 33,280
- vs nation
- D+37.1
modeled Census-place estimatemodeled estimate
ClintonDemocratic65.5%19,972DoleRepublican25.4%7,741OtherAll other candidates9.1%2,763
D+40.1- Lead
- 12,231
- Total
- 30,476
- vs nation
- D+31.6
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- D+56.9MIT Election Lab
- Population
- 108,5532024 5-year
- Population density
- 4,224 / sq mi2024 5-year · TIGER/Line
- Land area
- 25.7 sq miTIGER/Line
- Median household income
- $43,2602024 5-year
- White (non-Hispanic)
- 47.4%2024 5-year
- Black
- 19.4%2024 5-year
- Hispanic / Latino
- 10.1%2024 5-year
- Peak Democratic margin
- D+56.9 in 2024MIT Election Lab
- Peak Republican margin
- R+11.3 in 1920MIT Election Lab
- Most similar
- State House District 61, IN · twin score 92.7
presidential history
Party record book
Illinois 103rd 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
Kamala Harris2024
77.1%
30,657 votes · D+56.9 · modeled estimate
Runner-up · Joe Biden, 2020 · 75.9%
Republican
Warren G. Harding1920
52.7%
4,282 votes · R+11.3 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 48.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
32,476votes
75.9% of the vote · D+55.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 30,995 votes
Republican
George W. Bush2004
10,830votes
29.3% of the vote · D+39.9 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 10,653 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
+58.3pts D vs U.S.
Place D+56.9 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +51.1 pts
Republican
William H. Taft1912
−11.3pts R vs U.S.
Place D+30.8 · U.S. D+19.5 · modeled estimate
Runner-up · Thomas E. Dewey, 1948 · −11.3 pts
current representation
Current officeholders
DCarol AmmonsState House · 103
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 56.6%24,639 | 43.4%18,874 | 43,513 |
| 2020 | D | 58.1%28,398 | 41.9%20,471 | 48,869 |
Illinois 103rd State House District sits in the Upper Midwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 56.9 points in 2024 and a Republican high of 11.3 points in 1920. Between 2020 and 2024 the district moved 1.3 points toward the Democratic candidate; the 2024 margin was 56.9 points.
A population of 108,553, a 47% non-Hispanic-white share, and a median household income of $43,260 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 61 and State House District 82.
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
State House District 61
Indiana
92.7twin score
2016–2024 trajectory12-yr trend≠ Scottish ancestry
State House District 82
Michigan
92.2twin score
2008–2024 trajectory≠ % Asian
State House District 41
Michigan
91.8twin score
2008–2024 trajectory≠ % Asian
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Illinois 103rd State House District. Akashic. https://akashic.app/sld-lower/17103/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Illinois at the ballot boxAll elections →
Frequently asked questions
How did Illinois 103rd State House District vote in 2024?
In 2024, Illinois 103rd State House District voted Democratic by 56.9 points (D+56.9), carried by the Democratic candidate. Out of 39,776 votes cast, 30,657 went Democratic and 8,036 went Republican.
When did Illinois 103rd State House District last vote Republican?
The most recent presidential election in which Illinois 103rd State House District voted Republican was 1924.
How many people live in Illinois 103rd State House District?
Illinois 103rd State House District has a population of 108,553 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 103rd State House District?
Median household income in Illinois 103rd State House District is $43,260 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 103rd State House District?
Akashic tracks 38 presidential elections in Illinois 103rd State House District from 1876 to 2024. Of those, 36 went Democratic and 2 went Republican.