† 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
GroupWilmingtonIllinoisUnited States
German25.1%16.1%12.5%
Irish19.6%10.6%9.4%
Polish15.8%6.0%2.2%
Italian13.1%5.4%4.8%
English8.2%6.9%9.5%
American3.8%3.3%5.3%
Swedish2.4%1.5%—
Dutch2.0%——
Mexican7.8%14.4%11.3%
Puerto Rican0.6%1.7%1.8%
African American†2.0%12.1%9.9%
African0.5%0.5%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
Wilmington
Illinois
United States
Median age
40.3
39.1
39.1
Age 18–24
8.6%
9.1%
9.2%
Age 65 and older
21.1%
16.9%
17.2%
Household economy
Measure
Wilmington
Illinois
United States
Median household income
$66,154
$83,390
$84,427
Poverty rate
11.5%
11.8%
12.5%
Bachelor's degree or higher (25+)
19.8%
37.9%
35.6%
Languages at home
Measure
Wilmington
Illinois
United States
Speaks a non-English language at home
8.9%
24.1%
22.3%
Spanish
5.4%
14.0%
13.6%
Other languages
1.5%
0.6%
0.8%
Religious landscape
Measure
Wilmington
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.
Wilmington, Illinois
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−19.7%
2008
−1.7%
2012
−6.0%
2016
−25.1%
2020
−32.3%
2024
−35.8%
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
31.0%Harris849
66.8%Trump1,829
2.2%
R+35.8
R+3.5
R+34.3
2,739
R
32.6%Biden948
64.8%Trump1,887
2.6%
R+32.3
R+7.2
R+36.7
2,911
R
34.0%Clinton897
59.1%Trump1,558
6.8%
R+25.1
R+19.1
R+27.2
2,635
R
46.1%Obama1,088
52.1%Romney1,230
1.8%
R+6.0
R+4.3
R+9.9
2,360
R
47.9%Obama1,281
49.6%McCain1,326
2.5%
R+1.7
D+18.0
R+9.0
2,673
R
40.0%Kerry936
59.7%Bush1,398
0.3%
R+19.7
—
R+17.3
2,342
Wilmington sits along the Kankakee River at the southern edge of Will County, where longtime working-class Democratic margins have narrowed as Chicago exurban growth reshapes the surrounding area's electorate.
Across the recorded series it reached a Republican high of 35.8 points in 2024. Between 2020 and 2024 the city moved 3.5 points toward the Republican candidate; the 2024 margin was 35.8 points.
A population of 5,494, a 85% non-Hispanic-white share, and a median household income of $66,154 describe the city. The city's voting pattern over the last decade is most similar to that of Braidwood and Cedar Lake.
Akashic
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
In 2024, Wilmington, Illinois voted Republican by 35.8 points (R+35.8), carried by the Republican candidate. Out of 2,739 votes cast, 849 went Democratic and 1,829 went Republican.
How many people live in Wilmington, Illinois?
Wilmington, Illinois has a population of 5,494 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Wilmington, Illinois?
Median household income in Wilmington, Illinois is $66,154 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Wilmington, Illinois?
Akashic tracks 6 presidential elections in Wilmington, Illinois from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
