† 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
GroupBrookfieldIllinoisUnited States
German16.2%16.1%12.5%
Irish15.1%10.6%9.4%
Polish12.6%6.0%2.2%
Italian8.7%5.4%4.8%
English6.5%6.9%9.5%
American4.0%3.3%5.3%
Swedish2.2%1.5%—
Russian1.8%——
Mexican15.5%14.4%11.3%
Puerto Rican2.1%1.7%1.8%
Ecuadorian0.5%0.3%—
Guatemalan0.4%0.3%0.5%
Colombian0.3%0.3%0.4%
Cuban0.2%0.2%0.7%
Venezuelan0.2%——
Honduran0.2%0.2%0.3%
African American†4.7%12.1%9.9%
Asian Indian0.3%2.1%1.4%
Chinese0.2%1.0%1.3%
Filipino0.2%1.0%0.9%
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
Brookfield
Illinois
United States
Median age
41.6
39.1
39.1
Age 18–24
5.9%
9.1%
9.2%
Age 65 and older
15.0%
16.9%
17.2%
Household economy
Measure
Brookfield
Illinois
United States
Median household income
$110,295
$83,390
$84,427
Poverty rate
5.4%
11.8%
12.5%
Bachelor's degree or higher (25+)
42.3%
37.9%
35.6%
Languages at home
Measure
Brookfield
Illinois
United States
Speaks a non-English language at home
18.7%
24.1%
22.3%
Spanish
13.2%
14.0%
13.6%
Russian, Polish, or other Slavic
2.9%
2.5%
0.7%
Other Indo-European
1.9%
2.6%
2.0%
Religious landscape
Measure
Brookfield
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.
Brookfield, Illinois
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+12.9%
2008
+28.0%
2012
+26.3%
2016
+29.5%
2020
+34.8%
2024
+34.5%
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
D
66.6%Harris6,532
32.1%Trump3,149
1.3%
D+34.5
R+0.3
D+36.0
9,810
D
66.2%Biden6,889
31.5%Trump3,275
2.3%
D+34.8
D+5.3
D+30.3
10,400
D
60.6%Clinton5,742
31.1%Trump2,950
8.3%
D+29.5
D+3.1
D+27.4
9,478
D
62.4%Obama5,200
36.1%Romney3,006
1.5%
D+26.3
R+1.6
D+22.5
8,333
D
63.0%Obama5,605
35.1%McCain3,119
1.9%
D+28.0
D+15.0
D+20.7
8,894
D
56.4%Kerry4,946
43.5%Bush3,813
0.0%
D+12.9
—
D+15.4
8,763
Brookfield sits along the BNSF Metra line about 12 miles west of the Loop, drawing a mix of longtime homeowners and younger families whose voting patterns tend to track broader suburban Cook County shifts rather than anchoring firmly to either party.
Across the recorded series it reached a Democratic high of 34.8 points in 2020. The 2024 margin was 34.5 points.
A population of 19,331, a 70% non-Hispanic-white share, and a median household income of $110,295 describe the city. The city's voting pattern over the last decade is most similar to that of La Grange Park and Evergreen Park.
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, Brookfield, Illinois voted Democratic by 34.5 points (D+34.5), carried by the Democratic candidate. Out of 9,810 votes cast, 6,532 went Democratic and 3,149 went Republican.
How many people live in Brookfield, Illinois?
Brookfield, Illinois has a population of 19,331 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Brookfield, Illinois?
Median household income in Brookfield, Illinois is $110,295 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Brookfield, Illinois?
Akashic tracks 6 presidential elections in Brookfield, Illinois from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
