† 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
GroupMarkhamIllinoisUnited States
African American†65.1%12.1%9.9%
African1.9%0.5%0.5%
Nigerian1.6%0.3%0.2%
Jamaican0.6%—0.4%
Mexican13.4%14.4%11.3%
Puerto Rican1.8%1.7%1.8%
Ecuadorian0.4%0.3%—
Guatemalan0.3%0.3%0.5%
Colombian0.3%0.3%0.4%
Cuban0.2%0.2%0.7%
Venezuelan0.2%——
German2.5%16.1%12.5%
Irish2.4%10.6%9.4%
Polish2.0%6.0%2.2%
Italian1.4%5.4%4.8%
English1.0%6.9%9.5%
American0.6%3.3%5.3%
Swedish0.3%1.5%—
Russian0.3%——
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
Markham
Illinois
United States
Median age
34.2
39.1
39.1
Age 18–24
9.6%
9.1%
9.2%
Age 65 and older
14.7%
16.9%
17.2%
Household economy
Measure
Markham
Illinois
United States
Median household income
$57,302
$83,390
$84,427
Poverty rate
18.0%
11.8%
12.5%
Bachelor's degree or higher (25+)
17.7%
37.9%
35.6%
Languages at home
Measure
Markham
Illinois
United States
Speaks a non-English language at home
15.2%
24.1%
22.3%
Spanish
14.7%
14.0%
13.6%
Religious landscape
Measure
Markham
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.
Markham, Illinois
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+89.2%
2008
+90.9%
2012
+90.0%
2016
+85.4%
2020
+83.0%
2024
+71.7%
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
85.4%Harris3,297
13.7%Trump528
0.9%
D+71.7
R+11.3
D+73.2
3,861
D
91.1%Biden4,328
8.1%Trump384
0.8%
D+83.0
R+2.4
D+78.6
4,751
D
91.6%Clinton4,900
6.1%Trump327
2.3%
D+85.4
R+4.6
D+83.4
5,352
D
94.3%Obama5,501
4.2%Romney246
1.5%
D+90.0
R+0.9
D+86.2
5,836
D
95.2%Obama6,070
4.2%McCain271
0.6%
D+90.9
D+1.7
D+83.6
6,378
D
94.6%Kerry5,367
5.4%Bush305
0.0%
D+89.2
—
D+91.7
5,672
Markham sits in the dense southern tier of Cook County, where majority-Black working-class communities have produced consistent double-digit Democratic margins in statewide races over the past decade.
Across the recorded series it reached a Democratic high of 90.9 points in 2008. Between 2020 and 2024 the city moved 11.3 points toward the Republican candidate; the 2024 margin was 71.7 points.
A population of 11,355, a 11% non-Hispanic-white share, and a median household income of $57,302 describe the city. The city's voting pattern over the last decade is most similar to that of Calumet Park and University 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, Markham, Illinois voted Democratic by 71.7 points (D+71.7), carried by the Democratic candidate. Out of 3,861 votes cast, 3,297 went Democratic and 528 went Republican.
How many people live in Markham, Illinois?
Markham, Illinois has a population of 11,355 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Markham, Illinois?
Median household income in Markham, Illinois is $57,302 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Markham, Illinois?
Akashic tracks 6 presidential elections in Markham, Illinois from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
