- Lead
- 7,949
- Total
- 16,662
- vs nation
- R+46.2
Mount Vernon, IL
President margin by year
Place winner margin
President results by year
Vote totals, margins, and source status
- Lead
- 7,868
- Total
- 17,436
- vs nation
- R+49.6
- Lead
- 7,270
- Total
- 16,999
- vs nation
- R+44.9
- Lead
- 3,722
- Total
- 16,320
- vs nation
- R+26.7
- Lead
- 1,840
- Total
- 17,141
- vs nation
- R+18.0
- Lead
- 3,447
- Total
- 16,948
- vs nation
- R+17.9
- Lead
- 1,677
- Total
- 15,360
- vs nation
- R+11.4
- Lead
- 1,326
- Total
- 14,981
- vs nation
- D+0.3
Key facts
- 2024 presidential margin
- R+47.7MIT Election Lab
- Population
- 36,5502024 5-year
- Population density
- 64 / sq mi2024 5-year · TIGER/Line
- Land area
- 571 sq miTIGER/Line
- Median household income
- $63,1182024 5-year
- White (non-Hispanic)
- 83.6%2024 5-year
- Black
- 5.8%2024 5-year
- Hispanic / Latino
- 2.8%2024 5-year
- Peak Democratic margin
- D+27.7 in 1932MIT Election Lab
- Peak Republican margin
- R+47.7 in 2024MIT Election Lab
- Most similar
- Centralia, IL · twin score 93.3
presidential history
Party record book
Mount Vernon, 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
Franklin D. Roosevelt1932
63.3%
9,495 votes · D+27.7
Runner-up · Lyndon B. Johnson, 1964 · 60.7%
Republican
Donald Trump2024
73.2%
12,189 votes · R+47.7
Runner-up · Donald Trump, 2020 · 71.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1940
10,887votes
55.2% of the vote · D+11.1
Runner-up · Franklin D. Roosevelt, 1936 · 10,240 votes
Republican
Donald Trump2020
12,476votes
71.6% of the vote · R+45.1
Runner-up · Donald Trump, 2024 · 12,189 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
John W. Davis1924
+32.2pts D vs U.S.
Place D+7.0 · U.S. R+25.2
Runner-up · William J. Bryan, 1896 · +21.7 pts
Republican
Donald Trump2020
+49.6pts R vs U.S.
Place R+45.1 · U.S. D+4.5
Runner-up · Donald Trump, 2024 · +46.2 pts
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 | 23.1%3,775 | 76.9%12,549 | 16,324 |
| 2020 | R | 25.2%4,183 | 74.8%12,449 | 16,632 |
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 31,677 |
| 2018 | 25,933 |
| 2020 | 26,018 |
| 2022 | 25,355 |
| 2024 | 25,340 |
Who moves in and out
Net domestic migration over time
+105 net domestic migration · 2025
Net −2,033 over 2011–2025 · gain loss
| Year | Net domestic migration |
|---|---|
| 2011 | −42 |
| 2012 | −159 |
| 2013 | −76 |
| 2014 | −323 |
| 2015 | −210 |
| 2016 | −158 |
| 2017 | −238 |
| 2018 | −367 |
| 2019 | −44 |
| 2021 | +7 |
| 2022 | −302 |
| 2023 | −91 |
| 2024 | −135 |
| 2025 | +105 |
Mount Vernon anchors Jefferson County in Illinois's historically Democratic but increasingly Republican "Little Egypt" region, where deindustrialization and demographic shifts have redrawn electoral coalitions over the past two decades.
Across the recorded series it reached a Democratic high of 27.7 points in 1932 and a Republican high of 47.7 points in 2024. Between 2020 and 2024 the metro moved 2.6 points toward the Republican candidate; the 2024 margin was 47.7 points.
A population of 36,550, a 84% non-Hispanic-white share, and a median household income of $63,118 describe the metro. The metro's voting pattern over the last decade is most similar to that of Centralia, IL and Connersville, IN.
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 →
Mount Vernon, IL, Illinois. Akashic. https://akashic.app/cbsa/34500/. Accessed May 20, 2026. License: CC BY 4.0.