State House District 115 State House District (IL) — Elections 1876–2024

Illinois 115th State House District, Illinois: Republican loyalist district. In 2024, voted R+27%. Republican peak: R+30 in 1920.

Key facts

2024 presidential margin: R+27MIT Election Lab
Political archetype: Republican loyalistAkashic typology
Population: 146,0612024 5-year
Median household income: $72,7962024 5-year
White (non-Hispanic): 81.3%2024 5-year
Black: 10.8%2024 5-year
Hispanic / Latino: 3.8%2024 5-year
Peak Democratic margin: D+26 in 1932MIT Election Lab
Peak Republican margin: R+30 in 1920MIT Election Lab

2024 results by constituent county

6 counties · 2 D · 4 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	−27.1%	25,516	44,979	71,819
2020	R	−26.5%	26,597	46,423	74,721
2016	R	−25.2%	24,710	42,878	72,120
2012	R	−8.4%	31,003	36,879	69,720
2008	D	+4.5%	37,537	34,283	73,092
2004	R	−3.4%	33,785	36,192	70,533
2000	R	−0.2%	30,689	30,818	63,645
1996	D	+13.6%	30,834	22,641	60,437
1992	D	+19.2%	33,871	20,925	67,436
1988	D	+2.0%	30,487	29,271	60,075
1984	R	−14.9%	27,176	36,773	64,262
1980	R	−13.2%	25,149	33,347	62,297
1976	D	+4.2%	33,067	30,371	64,653
1972	R	−16.5%	26,493	37,032	63,712
1968	R	−7.2%	24,076	28,358	59,203
1964	D	+24.0%	36,022	22,089	58,111
1960	R	−5.0%	28,325	31,306	59,703
1956	R	−11.6%	25,003	31,545	56,591
1952	R	−9.0%	25,984	31,113	57,179
1948	R	−0.9%	24,205	24,663	49,175
1944	R	−11.9%	22,513	28,603	51,272
1940	R	−7.1%	29,147	33,624	63,056
1936	D	+9.3%	31,233	25,836	58,326
1932	D	+26.2%	31,835	18,358	51,365
1928	R	−1.2%	22,104	22,639	45,077
1924	R	−12.3%	12,859	17,727	39,635
1920	R	−30.5%	10,988	21,925	35,881
1916	R	−6.3%	19,003	21,623	41,752
1912	D	+13.6%	10,238	7,149	22,698
1908	R	−3.4%	10,685	11,481	23,235
1904	R	−16.2%	8,066	11,540	21,489
1900	D	+0.8%	11,134	10,963	22,626
1896	R	−0.1%	10,649	10,677	21,709
1892	D	+4.4%	9,242	8,402	18,989
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

29.5%

Irish

11.2%

English

10.5%

American

4.6%

Italian

3.3%

French

3.1%

Polish

2.5%

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: 40.3 in this county, 39.1 nationally

Male

Age

Female

0.7%

85+

1.6%

2.5%

75–84

3.1%

5.6%

65–74

5.7%

6.9%

55–64

6.6%

6.1%

45–54

5.5%

6.6%

35–44

5.9%

6.6%

25–34

5.5%

5.6%

18–24

4.8%

8.0%

5–17

7.5%

2.6%

2.5%

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

Median household income

2024 inflation-adjusted dollars

$72,796

State House District 115 ranks near the middle of US counties.

State House District 115$72,796

Illinois$83,390

United States$80,734

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

Poverty rate

All persons below federal poverty line

13.6%

Children face moderate poverty.

Children under 1817.4%

Working age (18–64)12.9%

Seniors (65+)9.6%

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

Language at home

Population aged 5 and older

95.5%

speak English only

Spanish2.2%

Other Indo-European1.2%

Asian & Pacific Islander0.7%

Other languages0.4%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Mainline Protestant

12.4%

Catholic & Orthodox

12.0%

Baptist

10.0%

Other Christian

9.6%

Methodist

2.7%

Non-Christian

1.7%

Pentecostal & Holiness

1.6%

Source · 2020 US Religion Census. Remaining 49.9% of residents not counted as adherents by any reporting body.

District 115 sits in deep-red downstate Illinois, where the 2024 presidential margin of R+18.9 reflects a rural electorate that has shifted sharply away from statewide Democratic trends over the past two decades.

The Republican margin in Illinois 115th State House District reached its widest at thirty points in 1920. The margin in 2024 was twenty-seven points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $72,796, a 81% non-Hispanic-white share, and a population of 146,061 together describe a district whose political habits are deeply settled.

Compare two places, side by side

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Cite this page

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

State House District 115, Illinois. Akashic. https://akashic.app/sld-lower/17115/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did State House District 115, Illinois vote in 2024?

In 2024, State House District 115, Illinois voted Republican by 27.1 points (R+27), carried by the Republican candidate. Out of 71,819 votes cast, 25,516 went Democratic and 44,979 went Republican.

What is State House District 115, Illinois's political archetype?

Akashic classifies State House District 115, 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 11 times, Republican 23 times, and other 0 times.

When did State House District 115, Illinois last vote Democratic?

The most recent presidential election in which State House District 115, Illinois voted Democratic was 2008.

How many people live in State House District 115, Illinois?

State House District 115, Illinois has a population of 146,061 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 115, Illinois?

Median household income in State House District 115, Illinois is $72,796 — below the national median of $80,734. The Illinois state median is $83,390.

What is the political history of State House District 115, Illinois?

Akashic tracks 38 presidential elections in State House District 115, Illinois from 1876 to 2024. Of those, 11 went Democratic and 23 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.

Illinois 115th State House District delivered R+27 in 2024 — Republican for decades.

Key facts

Demographics

Compare two places, side by side

Frequently asked questions