Mount Vernon, IL · which candidate this place backed in each party’s presidential nominating contest, cycle by cycle. A primary is a contest inside one party, so it has no Democratic–Republican margin and is not part of the general-election record above.
Akashic reports votes cast, not delegates awarded. The two can disagree: Clinton led the 2008 national primary popular vote by less than half a point and did not win the nomination.
Primary returns are published at county grain, and this place is a single county: Jefferson County, Illinois. The figures below are that county’s, which is the same territory — not a larger unit standing in for it.
Presidential nominating contests in Mount Vernon, IL, by party and cycle.
○no contest record — Akashic holds no result for that party and cycle here. It is not a claim that no contest was held. Telling apart a contest that was cancelled, one that went uncontested, and one simply not yet ingested needs a nominating-contest calendar, which is a separate ingest from results and does not exist yet.
Republican presidential primaries are not yet ingested — the Republican series runs from 1856 and is in scope. The row is kept so its absence is visible: a Democratic-only panel would otherwise read as though no one else held a contest.
Akashic carries 10 states for 2012 and 3 states for 2024. Cycles in which an incumbent president seeks renomination are thin by nature — few states run a contested primary — so a sparse column is politics, not a hole in the record.
County returns carry a leader and a lead over the runner-up, and nothing more. The full candidate field with vote shares is published at state grain — follow a cycle above to the state contest for it.
voter registration
Registered voters
Total registered voters, over time
Registered voters
Voter registration in Mount Vernon, IL
Year
Total registered
2016
31,677
2018
25,933
2020
26,018
2022
25,355
2024
25,340
domestic migration
Who moves in and out
Net domestic migration over time
+105 net domestic migration · 2025
20112025
Net −2,033 over 2011–2025 · gain loss
Domestic migration in Mount Vernon, IL in Mount Vernon, IL: net domestic migration by year
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.
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 →
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Mount Vernon, IL, Illinois. Akashic. https://akashic.app/cbsa/34500/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Mount Vernon, IL, Illinois voted Republican by 47.7 points (R+47.7), carried by the Republican candidate. Out of 16,662 votes cast, 4,240 went Democratic and 12,189 went Republican.
When did Mount Vernon, IL, Illinois last vote Democratic?
The most recent presidential election in which Mount Vernon, IL, Illinois voted Democratic was 1996.
How many people live in Mount Vernon, IL, Illinois?
Mount Vernon, IL, Illinois has a population of 36,550 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Mount Vernon, IL, Illinois?
Median household income in Mount Vernon, IL, Illinois is $63,118 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Mount Vernon, IL, Illinois?
Akashic tracks 34 presidential elections in Mount Vernon, IL, Illinois from 1892 to 2024. Of those, 17 went Democratic and 17 went Republican.
