† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupTrentonIllinoisUnited States
German46.8%16.1%12.5%
English7.3%6.9%9.5%
Irish6.9%10.6%9.4%
American6.4%3.3%5.3%
French3.1%0.7%1.6%
Polish1.9%6.0%2.2%
Italian1.6%5.4%4.8%
Scotch-Irish1.4%——
Mexican0.7%14.4%11.3%
Puerto Rican0.1%1.7%1.8%
Guatemalan0.1%0.3%0.5%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Trenton
Illinois
United States
Median age
38
39.1
39.1
Age 18–24
8.9%
9.1%
9.2%
Age 65 and older
20.3%
16.9%
17.2%
Household economy
Measure
Trenton
Illinois
United States
Median household income
$80,795
$83,390
$84,427
Poverty rate
12.4%
11.8%
12.5%
Bachelor's degree or higher (25+)
30.7%
37.9%
35.6%
Languages at home
Measure
Trenton
Illinois
United States
Speaks a non-English language at home
1.7%
24.1%
22.3%
Religious landscape
Measure
Trenton
Illinois
United States
Catholic
—
24.2%
18.6%
Evangelical Protestant
—
11.7%
16.5%
Unclaimed / not counted
—
49.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Trenton, Illinois
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−25.9%
2008
−15.7%
2012
−34.6%
2016
−44.3%
2020
−43.3%
2024
−41.2%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
28.3%Harris431
69.5%Trump1,059
2.2%
R+41.2
D+2.1
R+39.8
1,523
R
27.5%Biden419
70.8%Trump1,078
1.6%
R+43.3
D+1.0
R+47.7
1,522
R
24.9%Clinton339
69.2%Trump942
5.9%
R+44.3
R+9.7
R+46.4
1,362
R
31.6%Obama428
66.2%Romney897
2.2%
R+34.6
R+19.0
R+38.5
1,355
R
41.3%Obama594
57.0%McCain819
1.7%
R+15.7
D+10.3
R+22.9
1,437
R
36.3%Kerry536
62.3%Bush919
1.4%
R+25.9
—
R+23.5
1,476
Trenton sits in Clinton County, a consistently Republican-leaning corner of southwestern Illinois, but its sub-3,000 population means individual candidate strength and local networks can shift margins noticeably from cycle to cycle.
Across the recorded series it reached a Republican high of 44.3 points in 2016. Between 2020 and 2024 the city moved 2.1 points toward the Democratic candidate; the 2024 margin was 41.2 points.
A population of 2,664, a 96% non-Hispanic-white share, and a median household income of $80,795 describe the city.
In 2024, Trenton, Illinois voted Republican by 41.2 points (R+41.2), carried by the Republican candidate. Out of 1,523 votes cast, 431 went Democratic and 1,059 went Republican.
How many people live in Trenton, Illinois?
Trenton, Illinois has a population of 2,664 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Trenton, Illinois?
Median household income in Trenton, Illinois is $80,795 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Trenton, Illinois?
Akashic tracks 6 presidential elections in Trenton, Illinois from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
