State House District 100 State House District (IL) — Elections 1876–2024

Illinois 100th State House District, Illinois: Republican loyalist district. In 2024, voted R+40%. Republican peak: R+40 in 2024.

Key facts

2024 presidential margin: R+40MIT Election Lab
Political archetype: Republican loyalistAkashic typology
Population: 154,3772024 5-year
Median household income: $71,2312024 5-year
White (non-Hispanic): 90.3%2024 5-year
Black: 3.5%2024 5-year
Hispanic / Latino: 2.5%2024 5-year
Peak Democratic margin: D+30 in 1932MIT Election Lab
Peak Republican margin: R+40 in 2024MIT Election Lab

2024 results by constituent county

10 counties · 0 D · 10 R

R+60

D+60

One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.

38 presidential elections

Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year	Won	Margin	Democratic	Republican	Total
2024	R	−39.8%	23,048	54,501	78,989
2020	R	−38.1%	24,428	55,680	81,973
2016	R	−36.9%	22,058	50,444	76,979
2012	R	−17.4%	29,256	42,029	73,244
2008	R	−2.2%	36,741	38,452	76,543
2004	R	−12.1%	33,275	42,496	76,389
2000	R	−4.6%	33,299	36,577	71,861
1996	D	+9.2%	33,314	26,932	69,269
1992	D	+13.0%	35,995	25,820	78,100
1988	D	+2.3%	36,213	34,588	71,126
1984	R	−17.2%	30,999	43,937	75,192
1980	R	−18.9%	28,795	43,039	75,349
1976	D	+1.0%	38,372	37,594	76,878
1972	R	−22.3%	29,361	46,342	75,992
1968	R	−6.2%	32,139	36,911	76,996
1964	D	+22.3%	46,594	29,615	76,209
1960	R	−2.2%	39,518	41,298	80,910
1956	R	−8.0%	35,743	41,968	77,797
1952	R	−6.3%	37,168	42,208	79,463
1948	D	+5.8%	35,903	31,931	68,354
1944	R	−1.1%	35,833	36,604	72,802
1940	D	+3.6%	45,262	42,056	88,044
1936	D	+18.5%	48,148	32,778	83,010
1932	D	+29.7%	47,603	25,322	74,962
1928	R	−10.8%	30,045	37,417	68,129
1924	R	−3.1%	26,543	28,562	64,116
1920	R	−15.7%	21,635	30,576	57,039
1916	D	+9.8%	35,433	28,914	66,394
1912	D	+26.9%	17,241	8,096	34,043
1908	D	+9.3%	19,829	16,295	38,159
1904	R	−0.7%	16,157	16,390	35,440
1900	D	+13.2%	22,212	16,906	40,069
1896	D	+13.7%	23,041	17,427	41,048
1892	D	+13.3%	18,624	13,881	35,785
1888	—	No data	—	—	—
1884	—	No data	—	—	—
1880	—	No data	—	—	—
1876	—	No data	—	—	—

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

German

28.0%

English

13.0%

Irish

12.3%

American

7.8%

Italian

3.6%

Scottish

1.6%

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: 42.4 in this county, 39.1 nationally

Male

Age

Female

1.0%

85+

1.7%

2.6%

75–84

3.4%

5.8%

65–74

6.1%

7.0%

55–64

7.2%

6.1%

45–54

5.9%

6.2%

35–44

6.0%

5.9%

25–34

5.6%

4.3%

18–24

4.2%

8.1%

5–17

7.8%

2.6%

2.5%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$71,231

State House District 100 ranks near the middle of US counties.

State House District 100$71,231

Illinois$83,390

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

11.9%

Child poverty is below the national average.

Children under 1814.3%

Working age (18–64)11.3%

Seniors (65+)11.1%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

97.6%

speak English only

Spanish1.3%

Other Indo-European0.6%

Asian & Pacific Islander0.3%

Other languages0.1%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

15.1%

Baptist

9.3%

Other Christian

9.2%

Mainline Protestant

6.8%

Methodist

4.8%

Pentecostal & Holiness

2.3%

Non-Christian

0.6%

Source · 2020 US Religion Census. Remaining 51.9% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin of R+49.4, this downstate district ranks among the state's most one-sided legislative constituencies, reflecting the rural and small-town demographic patterns common to far southern Illinois.

The Republican margin in Illinois 100th State House District reached its widest at forty points in 2024. The margin in 2024 was forty points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $71,231, a 90% non-Hispanic-white share, and a population of 154,377 together describe a district whose political habits are deeply settled.

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Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

State House District 100, Illinois. Akashic. https://akashic.app/sld-lower/17100/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did State House District 100, Illinois vote in 2024?

In 2024, State House District 100, Illinois voted Republican by 39.8 points (R+40), carried by the Republican candidate. Out of 78,989 votes cast, 23,048 went Democratic and 54,501 went Republican.

What is State House District 100, Illinois's political archetype?

Akashic classifies State House District 100, Illinois as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 15 times, Republican 19 times, and other 0 times.

When did State House District 100, Illinois last vote Democratic?

The most recent presidential election in which State House District 100, Illinois voted Democratic was 1996.

How many people live in State House District 100, Illinois?

State House District 100, Illinois has a population of 154,377 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 100, Illinois?

Median household income in State House District 100, Illinois is $71,231 — below the national median of $80,734. The Illinois state median is $83,390.

What is the political history of State House District 100, Illinois?

Akashic tracks 38 presidential elections in State House District 100, Illinois from 1876 to 2024. Of those, 15 went Democratic and 19 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.

Illinois 100th State House District has voted Republican in seven straight presidential cycles.

Key facts

Demographics

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Frequently asked questions