Illinois 103rd State House District, Illinois: Democratic loyalist district. In 2024, voted D+24%. Republican peak: R+48 in 1920.
Key facts
- 2024 presidential margin
- D+24MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 5,3862024 5-year
- Median household income
- $63,6832024 5-year
- White (non-Hispanic)
- 64.2%2024 5-year
- Black
- 13.5%2024 5-year
- Hispanic / Latino
- 8.3%2024 5-year
- Peak Democratic margin
- D+24 in 2024MIT Election Lab
- Peak Republican margin
- R+48 in 1920MIT Election Lab
Constituent county margins for State House District 103, ILOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 1,401 | 851 | 2,311 | ||
| D | 1,472 | 910 | 2,466 | ||
| D | 1,294 | 861 | 2,364 | ||
| D | 1,053 | 911 | 2,028 | ||
| D | 1,254 | 874 | 2,171 | ||
| D | 1,071 | 1,029 | 2,127 | ||
| D | 916 | 894 | 1,917 | ||
| D | 837 | 728 | 1,714 | ||
| D | 903 | 699 | 1,963 | ||
| R | 767 | 858 | 1,638 | ||
| R | 703 | 1,012 | 1,727 | ||
| R | 542 | 860 | 1,686 | ||
| R | 693 | 891 | 1,628 | ||
| R | 638 | 869 | 1,514 | ||
| R | 475 | 672 | 1,255 | ||
| D | 665 | 568 | 1,233 | ||
| R | 442 | 717 | 1,172 | ||
| R | 356 | 727 | 1,085 | ||
| R | 360 | 701 | 1,064 | ||
| R | 299 | 494 | 812 | ||
| R | 357 | 489 | 850 | ||
| R | 453 | 524 | 984 | ||
| D | 470 | 408 | 891 | ||
| D | 425 | 361 | 802 | ||
| R | 230 | 503 | 737 | ||
| R | 135 | 368 | 585 | ||
| R | 135 | 402 | 559 | ||
| R | 248 | 378 | 652 | ||
| O | 115 | 83 | 324 | ||
| R | 125 | 185 | 323 | ||
| R | 97 | 179 | 294 | ||
| R | 129 | 172 | 312 | ||
| R | 120 | 175 | 303 | ||
| R | 116 | 136 | 268 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
17.3%
English
9.6%
Irish
9.0%
American
3.0%
Italian
2.8%
Polish
2.8%
French
1.5%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 30.7 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$63,683
State House District 103 ranks near the middle of US counties.
State House District 103$63,683
Illinois$83,390
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
19.1%
Child poverty is below the national average.
Children under 1813.5%
Working age (18–64)21.5%
Seniors (65+)7.7%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
81.0%
speak English only
Asian & Pacific Islander7.7%
Spanish5.4%
Other Indo-European5.0%
Other languages0.9%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 60.3% of residents not counted as adherents by any reporting body.
Illinois House District 103 sits in a stretch of downstate Illinois where Republican presidential candidates have built consistent double-digit advantages, making it one of the more one-sided legislative districts in a state whose statewide totals lean the opposite direction.
The Democratic margin in Illinois 103rd State House District reached its widest at twenty-four points in 2024. The margin in 2024 was twenty-four points — still decisive.
Its loyalty is rooted in its place. Median household income of $63,683, a 64% non-Hispanic-white share, and a population of 5,386 together describe a district whose political habits are deeply settled.
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State House District 103, Illinois. Akashic. https://akashic.app/sld-lower/17103/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 103, Illinois vote in 2024?
In 2024, State House District 103, Illinois voted Democratic by 23.8 points (D+24), carried by the Democratic candidate. Out of 2,311 votes cast, 1,401 went Democratic and 851 went Republican.
What is State House District 103, Illinois's political archetype?
Akashic classifies State House District 103, Illinois as a "Democratic loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 12 times, Republican 21 times, and other 1 times.
When did State House District 103, Illinois last vote Republican?
The most recent presidential election in which State House District 103, Illinois voted Republican was 1988.
How many people live in State House District 103, Illinois?
State House District 103, Illinois has a population of 5,386 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State House District 103, Illinois?
Median household income in State House District 103, Illinois is $63,683 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of State House District 103, Illinois?
Akashic tracks 38 presidential elections in State House District 103, Illinois from 1876 to 2024. Of those, 12 went Democratic and 21 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.