akashic
1876–2024
State Senate District 25·Illinois

Illinois 25th State Senate District has voted Democratic in six straight presidential cycles.

One of Illinois's most Republican-leaning legislative districts

1876 — 2024·38 elections
IL
Latest
D+18
in 2024
Archetype
Democratic loyalist
since the recent cycles
Population
235,000
2024 ACS

Illinois 25th State Senate District, Illinois: Democratic loyalist district. In 2024, voted D+18%. Republican peak: R+56 in 1920.

Key facts

2024 presidential margin
D+18MIT Election Lab
Political archetype
Democratic loyalistAkashic typology
Population
235,0002024 5-year
Median household income
$104,4402024 5-year
White (non-Hispanic)
59.1%2024 5-year
Black
8.7%2024 5-year
Hispanic / Latino
21.3%2024 5-year
Peak Democratic margin
D+24 in 2020MIT Election Lab
Peak Republican margin
R+56 in 1920MIT Election Lab
2024 results by constituent county
3 counties · 3 D · 0 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).
YearWonMarginDemocraticRepublicanTotal
D
+17.9%
62,45443,074108,570
D
+23.7%
70,63043,005116,430
D
+21.8%
59,29936,671103,664
D
+11.0%
52,53141,97896,067
D
+19.8%
59,71239,788100,779
D
+0.8%
47,78146,98095,527
R
−1.8%
40,88942,43785,828
D
+1.1%
35,15334,32876,221
R
−5.1%
33,47837,96388,590
R
−24.9%
28,52347,62576,669
R
−35.2%
24,44651,28076,152
R
−24.1%
23,96541,68873,462
R
−23.5%
25,38841,47168,567
R
−34.3%
21,38843,86065,458
R
−20.2%
21,13832,98858,738
D
+1.3%
28,45427,70556,159
R
−14.2%
22,75830,32453,187
R
−35.8%
14,74831,22346,064
R
−22.5%
16,79926,57743,481
R
−11.4%
15,92720,05636,298
R
−3.8%
17,16318,51135,775
R
−6.8%
16,32318,71335,197
D
+12.1%
17,77513,82332,536
D
+1.8%
13,75113,26327,867
R
−21.2%
9,86615,20925,244
R
−51.1%
2,77411,85517,762
R
−56.0%
2,58410,16013,525
R
−17.6%
5,2107,56713,362
O
+12.6%
1,9601,0926,884
R
−27.5%
2,1313,9326,547
R
−39.6%
1,4463,8416,043
R
−15.8%
2,5233,5076,216
R
−27.3%
2,1033,7305,957
D
+2.5%
2,1882,0784,446
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Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
14.9%
Irish
11.6%
Polish
8.7%
Italian
8.4%
English
5.7%
American
2.5%
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: 39.5 in this county, 39.1 nationally
Male
Age
Female
0.7%
85+
1.3%
2.1%
75–84
2.7%
4.7%
65–74
5.3%
6.4%
55–64
6.7%
6.4%
45–54
6.4%
7.0%
35–44
6.7%
6.6%
25–34
6.5%
4.3%
18–24
4.2%
8.5%
5–17
8.1%
2.8%
<5
2.7%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$104,440
State Senate District 25 ranks near the middle of US counties.
State Senate District 25$104,440
Illinois$83,390
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
8.3%
Child poverty is below the national average.
Children under 1810.0%
Working age (18–64)7.6%
Seniors (65+)10.1%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
68.7%
speak English only
Spanish16.0%
Other Indo-European9.5%
Asian & Pacific Islander4.5%
Other languages1.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
35.1%
Non-Christian
8.7%
Other Christian
7.2%
Mainline Protestant
5.6%
Methodist
1.6%
Baptist
1.5%
Pentecostal & Holiness
0.8%
Source · 2020 US Religion Census. Remaining 39.6% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin of R+67.3, this downstate district ranks among the state's most heavily Republican constituencies, reflecting the rural demographic patterns common to Illinois's agricultural heartland.

The Democratic margin in Illinois 25th State Senate District reached its widest at twenty-four points in 2020. The margin in 2024 was eighteen points — still decisive.

Its loyalty is rooted in its place. Median household income of $104,440, a 59% non-Hispanic-white share, and a population of 235,000 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 Senate District 25, Illinois. Akashic. https://akashic.app/sld-upper/17025/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did State Senate District 25, Illinois vote in 2024?
In 2024, State Senate District 25, Illinois voted Democratic by 17.9 points (D+18), carried by the Democratic candidate. Out of 108,570 votes cast, 62,454 went Democratic and 43,074 went Republican.
What is State Senate District 25, Illinois's political archetype?
Akashic classifies State Senate District 25, 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 11 times, Republican 22 times, and other 1 times.
When did State Senate District 25, Illinois last vote Republican?
The most recent presidential election in which State Senate District 25, Illinois voted Republican was 2000.
How many people live in State Senate District 25, Illinois?
State Senate District 25, Illinois has a population of 235,000 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State Senate District 25, Illinois?
Median household income in State Senate District 25, Illinois is $104,440 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of State Senate District 25, Illinois?
Akashic tracks 38 presidential elections in State Senate District 25, Illinois from 1876 to 2024. Of those, 11 went Democratic and 22 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.