† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
1 counties by 2024 margin · County returns · 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
GroupMacomb, ILIllinoisUnited States
German19.9%16.1%12.5%
English13.3%6.9%9.5%
Irish12.2%10.6%9.4%
American6.2%3.3%5.3%
Italian2.8%5.4%4.8%
Dutch2.8%——
Swedish2.8%1.5%—
Polish2.4%6.0%2.2%
African American†4.0%12.1%9.9%
African0.9%0.5%0.5%
Nigerian0.4%0.3%0.2%
Mexican2.4%14.4%11.3%
Puerto Rican0.4%1.7%1.8%
Asian Indian1.0%2.1%1.4%
Filipino0.4%1.0%0.9%
Chinese0.2%1.0%1.3%
Japanese0.2%—0.2%
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
Macomb, IL
Illinois
United States
Median age
34.9
39.1
39.1
Age 18–24
20.8%
9.1%
9.2%
Age 65 and older
19.3%
16.9%
17.2%
Household economy
Measure
Macomb, IL
Illinois
United States
Median household income
$52,795
$83,390
$84,427
Poverty rate
17.2%
11.8%
12.5%
Bachelor's degree or higher (25+)
31.4%
37.9%
35.6%
Languages at home
Measure
Macomb, IL
Illinois
United States
Speaks a non-English language at home
4.8%
24.1%
22.3%
Spanish
1.6%
14.0%
13.6%
Other Indo-European
1.1%
2.6%
2.0%
Religious landscape
Measure
Macomb, IL
Illinois
United States
Catholic
4.6%
24.2%
18.6%
Evangelical Protestant
13.1%
11.7%
16.5%
Unclaimed / not counted
66.3%
49.2%
51.5%
Mainline Protestant
12.3%
5.3%
5.2%
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.
Macomb, IL
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−1.2%
1896
−4.5%
1900
−8.2%
1904
−18.0%
1908
−8.5%
1912
+15.5%
1916
−10.7%
1920
−28.8%
1924
−28.4%
1928
−36.9%
1932
+9.1%
1936
−9.9%
1940
−28.0%
1944
−33.3%
1948
−31.1%
1952
−44.1%
1956
−43.0%
1960
−34.9%
1964
−5.8%
1968
−36.5%
1972
−34.5%
1976
−27.2%
1980
−33.6%
1984
−34.4%
1988
−15.4%
1992
+3.7%
1996
+4.8%
2000
−3.0%
2004
−3.6%
2008
+5.6%
2012
−1.4%
2016
−11.5%
2020
−16.5%
2024
−18.8%
DemocraticRepublican
34 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.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
39.6%Harris4,736
58.4%Trump6,987
2.1%
R+18.8
R+2.3
R+17.3
11,972
R
40.5%Biden4,992
57.0%Trump7,027
2.5%
R+16.5
R+5.0
R+21.0
12,327
R
40.2%Clinton5,288
51.7%Trump6,795
8.1%
R+11.5
R+10.0
R+13.6
13,144
R
47.9%Obama5,967
49.4%Romney6,147
2.7%
R+1.4
R+7.0
R+5.3
12,454
D
52.0%Obama6,783
46.4%McCain6,055
1.6%
D+5.6
D+9.2
R+1.7
13,042
R
47.7%Kerry7,119
51.3%Bush7,656
1.0%
R+3.6
R+0.6
R+1.1
14,929
R
46.7%Gore6,080
49.7%Bush6,465
3.6%
R+3.0
R+7.8
R+3.5
13,012
D
46.8%Clinton5,632
42.0%Dole5,049
11.3%
D+4.8
D+1.1
R+3.7
12,035
D
41.8%Clinton5,814
38.0%Bush5,297
20.2%
D+3.7
D+19.1
R+1.8
13,922
R
42.0%Dukakis5,247
57.4%Bush7,173
0.6%
R+15.4
D+19.0
R+7.7
12,493
R
32.6%Mondale4,561
67.0%Reagan9,383
0.4%
R+34.4
R+0.8
R+16.2
14,001
R
28.1%Carter4,093
61.7%Reagan8,995
10.3%
R+33.6
R+6.4
R+23.9
14,589
R
35.2%Carter5,464
62.3%Ford9,683
2.5%
R+27.2
D+7.3
R+29.2
15,534
R
32.7%McGovern5,143
67.2%Nixon10,573
0.1%
R+34.5
D+1.9
R+11.3
15,738
R
29.3%Humphrey3,785
65.7%Nixon8,496
5.0%
R+36.5
R+30.6
R+35.8
12,924
R
47.1%Johnson6,144
52.9%Goldwater6,907
0.0%
R+5.8
D+29.0
R+28.4
13,051
R
32.5%Kennedy4,520
67.4%Nixon9,363
0.1%
R+34.9
D+8.2
R+35.0
13,893
R
28.5%Stevenson3,872
71.5%Eisenhower9,725
0.1%
R+43.0
D+1.1
R+27.6
13,605
R
27.9%Stevenson3,922
72.1%Eisenhower10,126
0.0%
R+44.1
R+13.0
R+33.4
14,053
R
34.0%Truman4,206
65.1%Dewey8,058
0.9%
R+31.1
D+2.1
R+35.6
12,373
R
33.0%Roosevelt4,497
66.3%Dewey9,028
0.7%
R+33.3
R+5.3
R+40.8
13,616
R
35.7%Roosevelt5,783
63.7%Willkie10,326
0.7%
R+28.0
R+18.1
R+38.0
16,217
R
44.6%Roosevelt7,138
54.5%Landon8,723
0.9%
R+9.9
R+19.0
R+34.2
16,012
D
53.9%Roosevelt7,608
44.9%Hoover6,329
1.2%
D+9.1
D+46.0
R+8.7
14,105
R
31.2%Smith4,104
68.1%Hoover8,953
0.6%
R+36.9
R+8.6
R+19.4
13,138
R
32.6%Davis4,016
61.0%Coolidge7,505
6.4%
R+28.4
D+0.4
R+3.2
12,306
R
34.4%Cox3,930
63.2%Harding7,221
2.4%
R+28.8
R+18.1
R+2.6
11,430
R
42.4%Wilson5,740
53.1%Hughes7,192
4.5%
R+10.7
R+26.3
R+13.9
13,546
D
42.4%Wilson2,959
26.9%Taft1,876
30.7%
D+15.5
D+24.0
R+4.0
6,973
R
42.6%Bryan3,112
51.1%Taft3,733
6.4%
R+8.5
D+9.5
D+1.1
7,312
R
37.4%Parker2,730
55.4%Roosevelt4,041
7.2%
R+18.0
R+9.8
D+1.7
7,299
R
44.5%Bryan3,444
52.7%McKinley4,076
2.8%
R+8.2
R+3.7
R+0.6
7,733
R
46.7%Bryan3,684
51.2%McKinley4,036
2.1%
R+4.5
R+3.3
D+1.6
7,889
R
45.6%Cleveland3,237
46.7%Harrison3,319
7.7%
R+1.2
—
R+2.8
7,103
Congressional elections · 2 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2022
R
40.4%3,793
57.9%5,434
9,390
2020
R
41.9%5,090
54.9%6,674
12,148
voter registration
Registered voters
Total registered voters, over time
Registered voters
Voter registration in Macomb, IL
Year
Total registered
2016
20,644
2018
19,642
2020
17,786
2022
16,212
2024
18,690
domestic migration
Who moves in and out
Net domestic migration over time
−130 net domestic migration · 2025
20112025
Net −4,436 over 2011–2025 · gain loss
Domestic migration in Macomb, IL in Macomb, IL: net domestic migration by year
Year
Net domestic migration
2011
−146
2012
−8
2013
−380
2014
−564
2015
−383
2016
−568
2017
−629
2018
−417
2019
−344
2021
+50
2022
−318
2023
+56
2024
−655
2025
−130
Macomb's electorate is shaped by Western Illinois University's enrollment, which introduces a younger, more transient voting bloc into an otherwise rural McDonough County that has trended toward wide Republican margins in recent cycles.
Across the recorded series it reached a Democratic high of 15.5 points in 1912 and a Republican high of 44.1 points in 1952. Between 2020 and 2024 the metro moved 2.3 points toward the Republican candidate; the 2024 margin was 18.8 points.
A population of 26,920, a 85% non-Hispanic-white share, and a median household income of $52,795 describe the metro. The metro's voting pattern over the last decade is most similar to that of Athens, OH and Vermillion, SD.
Akashic
Political twins — metros
The metros 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.
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.
Macomb, IL, Illinois. Akashic. https://akashic.app/cbsa/31380/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Macomb, IL, Illinois voted Republican by 18.8 points (R+18.8), carried by the Republican candidate. Out of 11,972 votes cast, 4,736 went Democratic and 6,987 went Republican.
When did Macomb, IL, Illinois last vote Democratic?
The most recent presidential election in which Macomb, IL, Illinois voted Democratic was 2008.
How many people live in Macomb, IL, Illinois?
Macomb, IL, Illinois has a population of 26,920 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Macomb, IL, Illinois?
Median household income in Macomb, IL, Illinois is $52,795 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Macomb, IL, Illinois?
Akashic tracks 34 presidential elections in Macomb, IL, Illinois from 1892 to 2024. Of those, 5 went Democratic and 29 went Republican.
