Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the city’s overall result across 2004–2024, on current city boundaries.
President results by year
Vote totals, margins, and source status
HarrisDemocratic54.8%1,815TrumpRepublican41.9%1,387OtherAll other candidates3.4%111
D+12.9
Lead
428
Total
3,313
vs nation
D+14.4
BidenDemocratic56.4%1,829TrumpRepublican41.7%1,351OtherAll other candidates1.9%62
D+14.7
Lead
478
Total
3,242
vs nation
D+10.3
ClintonDemocratic48.2%1,423TrumpRepublican45.2%1,335OtherAll other candidates6.6%194
D+3.0
Lead
88
Total
2,952
vs nation
D+0.9
ObamaDemocratic43.8%1,171RomneyRepublican54.8%1,466OtherAll other candidates1.4%37
R+11.0
Lead
295
Total
2,674
vs nation
R+14.9
ObamaDemocratic45.7%1,246McCainRepublican53.7%1,462OtherAll other candidates0.6%17
R+7.9
Lead
216
Total
2,725
vs nation
R+15.2
KerryDemocratic38.8%985BushRepublican60.5%1,535OtherAll other candidates0.7%17
R+21.7
Lead
550
Total
2,537
vs nation
R+19.2
Key facts
2024 presidential margin
D+12.9MIT Election Lab
Population
4,4842024 5-year
Population density
448 / sq mi2024 5-year · TIGER/Line
Land area
10 sq miTIGER/Line
Median household income
$250,0012024 5-year
White (non-Hispanic)
47.1%2024 5-year
Black
0.9%2024 5-year
Hispanic / Latino
6.4%2024 5-year
Peak Democratic margin
D+14.7 in 2020MIT Election Lab
Peak Republican margin
R+21.7 in 2004MIT Election Lab
Participation
Turnout and midterm durability
Participation measured against the same-year citizen voting-age population. Audited cycles count total general-election participants — ballots or participating voters, not presidential candidate votes. Cycles before 2022 predate that series and are derived from the certified presidential returns instead; they are marked everywhere they appear and are excluded from the figures below.
2020–20222 cycles · 1 audited
2022 turnout
75.7%2,246 participants ÷ 2,966 CVAP
Participation by cycle
Presidential Midterm Derived, pre-2016
0%20%40%60%80%100%
75.7%
20202022
Select a presidential cycle to show it on the map and results ledger above.
Cycle
Participants
CVAP
Turnout
Series
Quality
2022Mid
2,246
2,966 ± 364
75.7%
Audited
E/D
3,242
3,242
100.0%
Derived
—
Sources and methods
Audited cycles (2022) count total general-election participants against the same-year CVAP special tabulation, each cell carrying its own numerator and denominator quality grade. Derived cycles (2020) come from the certified presidential returns on this page over the ACS 5-year CVAP series, so they measure presidential votes cast rather than ballots — a floor on participation. Where a derived cycle predates the ACS its denominator is extrapolated rather than read, and says so on its own line below. They are shown for the longer arc and are excluded from the drop-off, excess-drop-off, and 2026 scenario figures above.
2022: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 322/184.
2020 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
presidential history
Party record book
Union Mill, VA · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
2004–2024 · 6 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Joe Biden2020
56.4%
1,829 votes · D+14.7
Runner-up · Kamala Harris, 2024 · 54.8%
Republican
George W. Bush2004
60.5%
1,535 votes · R+21.7
Runner-up · Mitt Romney, 2012 · 54.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
1,829votes
56.4% of the vote · D+14.7
Runner-up · Kamala Harris, 2024 · 1,815 votes
Republican
George W. Bush2004
1,535votes
60.5% of the vote · R+21.7
Runner-up · Mitt Romney, 2012 · 1,466 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
Kamala Harris2024
+14.4pts D vs U.S.
Place D+12.9 · U.S. R+1.5
Runner-up · Joe Biden, 2020 · +10.3 pts
Republican
George W. Bush2004
+19.2pts R vs U.S.
Place R+21.7 · U.S. R+2.5
Runner-up · John McCain, 2008 · +15.2 pts
U.S. House elections · 1 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.
Union Mill · 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. The figures below are Fairfax County, Virginia, the county containing Union Mill — Union Mill’s own primary vote sits inside those totals and is not separately reported.
Presidential nominating contests in Union Mill, 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.
Union Mill sits in the Mid-Atlantic and Appalachia. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 14.7 points in 2020 and a Republican high of 21.7 points in 2004. Between 2020 and 2024 the city moved 1.8 points toward the Republican candidate; the 2024 margin was 12.9 points.
A population of 4,484, a 47% non-Hispanic-white share, and a median household income of $250,001 describe the city.
In 2024, Union Mill, Virginia voted Democratic by 12.9 points (D+12.9), carried by the Democratic candidate. Out of 3,313 votes cast, 1,815 went Democratic and 1,387 went Republican.
When did Union Mill, Virginia last vote Republican?
The most recent presidential election in which Union Mill, Virginia voted Republican was 2012.
How many people live in Union Mill, Virginia?
Union Mill, Virginia has a population of 4,484 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Union Mill, Virginia?
Median household income in Union Mill, Virginia is $250,001 — above the national median of $80,734. The Virginia state median is $93,170.
What is the political history of Union Mill, Virginia?
Akashic tracks 6 presidential elections in Union Mill, Virginia from 2004 to 2024. Of those, 3 went Democratic and 3 went Republican.
