Illinois 104th State House District, Illinois: Tossup district. In 2024, voted D+8%. Republican peak: R+39 in 1920.
Key facts
- 2024 presidential margin
- D+8MIT Election Lab
- Political archetype
- TossupAkashic typology
- Population
- 82,7352024 5-year
- Median household income
- $61,8572024 5-year
- White (non-Hispanic)
- 67.9%2024 5-year
- Black
- 13.8%2024 5-year
- Hispanic / Latino
- 7.6%2024 5-year
- Peak Democratic margin
- D+15 in 1932MIT Election Lab
- Peak Republican margin
- R+39 in 1920MIT Election Lab
Constituent county margins for State House District 104, 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 | 18,589 | 15,625 | 35,041 | ||
| D | 19,715 | 16,589 | 37,421 | ||
| D | 17,619 | 15,531 | 36,024 | ||
| D | 15,791 | 15,421 | 32,120 | ||
| D | 19,076 | 14,746 | 34,483 | ||
| R | 16,558 | 17,315 | 34,246 | ||
| D | 15,024 | 14,888 | 31,388 | ||
| D | 14,173 | 11,872 | 28,873 | ||
| D | 15,789 | 11,447 | 33,862 | ||
| R | 14,118 | 14,838 | 29,170 | ||
| R | 12,977 | 18,408 | 31,557 | ||
| R | 10,541 | 16,590 | 31,089 | ||
| R | 13,444 | 16,076 | 30,123 | ||
| R | 11,596 | 17,398 | 29,108 | ||
| R | 10,323 | 14,108 | 27,426 | ||
| D | 15,075 | 12,365 | 27,440 | ||
| R | 11,006 | 16,209 | 27,391 | ||
| R | 9,519 | 16,313 | 25,865 | ||
| R | 9,803 | 15,664 | 25,527 | ||
| R | 8,316 | 11,381 | 20,057 | ||
| R | 9,653 | 11,869 | 21,657 | ||
| R | 12,114 | 12,963 | 25,244 | ||
| D | 12,951 | 10,212 | 23,557 | ||
| D | 12,148 | 8,856 | 21,486 | ||
| R | 6,489 | 12,283 | 18,927 | ||
| R | 3,484 | 9,597 | 16,579 | ||
| R | 4,170 | 10,090 | 15,316 | ||
| R | 7,036 | 9,252 | 17,292 | ||
| O | 3,002 | 2,668 | 9,023 | ||
| R | 3,339 | 5,673 | 9,567 | ||
| R | 2,199 | 5,445 | 8,445 | ||
| R | 3,340 | 4,953 | 8,620 | ||
| R | 3,110 | 4,655 | 7,957 | ||
| R | 2,839 | 3,648 | 6,825 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
16.2%
English
9.8%
Irish
8.7%
American
4.1%
Italian
2.5%
Polish
2.0%
French
1.4%
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: 33.5 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
$61,857
State House District 104 ranks near the middle of US counties.
State House District 104$61,857
Illinois$83,390
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
18.7%
Children face moderate poverty.
Children under 1816.7%
Working age (18–64)20.0%
Seniors (65+)8.4%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
85.1%
speak English only
Asian & Pacific Islander5.8%
Spanish4.7%
Other Indo-European3.8%
Other languages0.7%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 61.7% of residents not counted as adherents by any reporting body.
With a 2024 presidential margin of just D+1.6, this district sits near the tipping point between the parties, making it a persistent target for both sides in state legislative cycles.
The district's recent history is a story of close margins. The Democratic margin reached fifteen points in 1932; the Republican margin reached thirty-nine points in 1920. Most other elections have been decided by single-digit points.
Its demographics — a population of 82,735, a 68% non-Hispanic-white share, a median household income of $61,857 — situate the district close to national averages on several dimensions.
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 104, Illinois. Akashic. https://akashic.app/sld-lower/17104/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 104, Illinois vote in 2024?
In 2024, State House District 104, Illinois voted Democratic by 8.5 points (D+8), carried by the Democratic candidate. Out of 35,041 votes cast, 18,589 went Democratic and 15,625 went Republican.
What is State House District 104, Illinois's political archetype?
Akashic classifies State House District 104, Illinois as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 11 times, Republican 22 times, and other 1 times.
When did State House District 104, Illinois last vote Republican?
The most recent presidential election in which State House District 104, Illinois voted Republican was 2004.
How many people live in State House District 104, Illinois?
State House District 104, Illinois has a population of 82,735 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 104, Illinois?
Median household income in State House District 104, Illinois is $61,857 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of State House District 104, Illinois?
Akashic tracks 38 presidential elections in State House District 104, Illinois from 1876 to 2024. Of those, 11 went Democratic and 22 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.