HarrisDemocratic39.7%18,009TrumpRepublican58.6%26,562OtherAll other candidates1.7%770
R+18.9- Lead
- 8,553
- Total
- 45,341
- vs nation
- R+17.4
Akashicmetro area
Decatur, IL
Office (updates table and map)
President margin by year
Place winner margin
1 counties by 2024 margin · County returns · MIT Election Lab
President results by year
Vote totals, margins, and source status
BidenDemocratic40.1%19,847TrumpRepublican57.7%28,589OtherAll other candidates2.2%1,098
R+17.6- Lead
- 8,742
- Total
- 49,534
- vs nation
- R+22.1
ClintonDemocratic38.2%18,343TrumpRepublican55.9%26,866OtherAll other candidates5.9%2,851
R+17.7- Lead
- 8,523
- Total
- 48,060
- vs nation
- R+19.8
ObamaDemocratic46.5%22,780RomneyRepublican51.6%25,309OtherAll other candidates1.9%941
R+5.2- Lead
- 2,529
- Total
- 49,030
- vs nation
- R+9.0
ObamaDemocratic49.8%25,487McCainRepublican48.7%24,948OtherAll other candidates1.5%781
D+1.1- Lead
- 539
- Total
- 51,216
- vs nation
- R+6.2
KerryDemocratic45.1%23,341BushRepublican54.3%28,118OtherAll other candidates0.6%287
R+9.2- Lead
- 4,777
- Total
- 51,746
- vs nation
- R+6.8
GoreDemocratic49.0%24,262BushRepublican48.1%23,830OtherAll other candidates2.8%1,407
D+0.9- Lead
- 432
- Total
- 49,499
- vs nation
- D+0.4
ClintonDemocratic51.4%24,256DoleRepublican38.4%18,161OtherAll other candidates10.2%4,818
D+12.9- Lead
- 6,095
- Total
- 47,235
- vs nation
- D+4.4
Key facts
- 2024 presidential margin
- R+18.9MIT Election Lab
- Population
- 101,8492024 5-year
- Population density
- 175 / sq mi2024 5-year · TIGER/Line
- Land area
- 581 sq miTIGER/Line
- Median household income
- $62,6662024 5-year
- White (non-Hispanic)
- 73.3%2024 5-year
- Black
- 16.2%2024 5-year
- Hispanic / Latino
- 2.9%2024 5-year
- Peak Democratic margin
- D+32.2 in 1964MIT Election Lab
- Peak Republican margin
- R+42.0 in 1928MIT Election Lab
- Most similar
- Flint, MI · twin score 80.3
presidential history
Party record book
Decatur, IL · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
66.1%
35,045 votes · D+32.2
Runner-up · Franklin D. Roosevelt, 1936 · 62.9%
Republican
Herbert Hoover1928
70.7%
24,492 votes · R+42.0
Runner-up · Warren G. Harding, 1920 · 65.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
35,045votes
66.1% of the vote · D+32.2
Runner-up · Jimmy Carter, 1976 · 28,243 votes
Republican
Ronald Reagan1984
30,457votes
54.3% of the vote · R+8.9
Runner-up · Richard Nixon, 1972 · 29,596 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Michael Dukakis1988
+10.8pts D vs U.S.
Place D+3.0 · U.S. R+7.7
Runner-up · Bill Clinton, 1992 · +10.2 pts
Republican
Herbert Hoover1928
+24.5pts R vs U.S.
Place R+42.0 · U.S. R+17.5
Runner-up · Donald Trump, 2020 · +22.1 pts
U.S. House elections · 2 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 23.7%9,214 | 76.3%29,635 | 38,849 |
| 2020 | R | 38.9%19,016 | 61.1%29,888 | 48,904 |
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 79,765 |
| 2018 | 79,379 |
| 2020 | 80,880 |
| 2022 | 80,906 |
| 2024 | 75,295 |
domestic migration
Who moves in and out
Net domestic migration over time
−462 net domestic migration · 2025
20112025
Net −11,989 over 2011–2025 · gain loss
| Year | Net domestic migration |
|---|---|
| 2011 | −373 |
| 2012 | −748 |
| 2013 | −845 |
| 2014 | −1,213 |
| 2015 | −1,269 |
| 2016 | −1,118 |
| 2017 | −1,079 |
| 2018 | −977 |
| 2019 | −564 |
| 2021 | −997 |
| 2022 | −1,225 |
| 2023 | −783 |
| 2024 | −336 |
| 2025 | −462 |
Decatur anchors Macon County, a once-reliably Democratic union stronghold that shifted sharply rightward as Archer Daniels Midland's workforce contracted and the region's industrial base eroded over the past three decades.
Across the recorded series it reached a Democratic high of 32.2 points in 1964 and a Republican high of 42.0 points in 1928. Between 2020 and 2024 the metro moved 1.2 points toward the Republican candidate; the 2024 margin was 18.9 points.
A population of 101,849, a 73% non-Hispanic-white share, and a median household income of $62,666 describe the metro. The metro's voting pattern over the last decade is most similar to that of Flint, MI and Elizabeth City, NC.
Political twins — metros
The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Flint, MI
80.3twin score
% Black% Latinomedian income≠ 2000 margin
Elizabeth City, NC
77.4twin score
2000–2008 trajectory% Latinoelasticity≠ % Black
Battle Creek, MI
76.5twin score
2000–2008 trajectorymedian income≠ % unaffiliated
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.
Decatur, IL, Illinois. Akashic. https://akashic.app/cbsa/19500/. Accessed May 20, 2026. License: CC BY 4.0.
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Places within Decatur, IL
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Frequently asked questions
How did Decatur, IL, Illinois vote in 2024?
In 2024, Decatur, IL, Illinois voted Republican by 18.9 points (R+18.9), carried by the Republican candidate. Out of 45,341 votes cast, 18,009 went Democratic and 26,562 went Republican.
When did Decatur, IL, Illinois last vote Democratic?
The most recent presidential election in which Decatur, IL, Illinois voted Democratic was 2008.
How many people live in Decatur, IL, Illinois?
Decatur, IL, Illinois has a population of 101,849 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Decatur, IL, Illinois?
Median household income in Decatur, IL, Illinois is $62,666 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Decatur, IL, Illinois?
Akashic tracks 34 presidential elections in Decatur, IL, Illinois from 1892 to 2024. Of those, 13 went Democratic and 20 went Republican.