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
HarrisDemocratic71.0%1,419TrumpRepublican28.0%560OtherAll other candidates1.1%21
D+43.0
Lead
859
Total
2,000
vs nation
D+44.4
BidenDemocratic73.5%1,707TrumpRepublican25.8%600OtherAll other candidates0.6%15
D+47.7
Lead
1,107
Total
2,322
vs nation
D+43.2
ClintonDemocratic68.0%1,368TrumpRepublican28.5%573OtherAll other candidates3.6%72
D+39.5
Lead
795
Total
2,013
vs nation
D+37.4
ObamaDemocratic56.7%799RomneyRepublican42.2%594OtherAll other candidates1.1%16
D+14.5
Lead
205
Total
1,409
vs nation
D+10.7
ObamaDemocratic64.2%1,033McCainRepublican34.8%560OtherAll other candidates1.0%16
D+29.4
Lead
473
Total
1,609
vs nation
D+22.1
KerryDemocratic61.2%926BushRepublican38.6%584OtherAll other candidates0.3%4
D+22.6
Lead
342
Total
1,514
vs nation
D+25.0
Key facts
2024 presidential margin
D+43.0MIT Election Lab
Population
3,4212024 5-year
Population density
4,276 / sq mi2024 5-year · TIGER/Line
Land area
0.8 sq miTIGER/Line
Median household income
$88,3222024 5-year
White (non-Hispanic)
73.8%2024 5-year
Black
2.2%2024 5-year
Hispanic / Latino
7.0%2024 5-year
Peak Democratic margin
D+47.7 in 2020MIT 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.
2020–20243 cycles · 3 audited
2024 turnout
78.0%2,012 participants ÷ 2,579 CVAP
2020→2022 drop-off
+31.1 ptsPresidential-dependent
Drop-off vs state
+14.2 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026
46.9%Recent-cycle and two-cycle persistence scenarios; not a forecast
Participation by cycle
Presidential Midterm
0%20%40%60%80%100%
62.5%
202020222024
Select a presidential cycle to show it on the map and results ledger above.
Cycle
Participants
CVAP
Turnout
Series
Quality
2,012
2,579 ± 298
78.0%
Audited
E/D
2022Mid
1,821
2,913 ± 380
62.5%
Audited
E/D
2,331
2,489 ± 271
93.7%
Audited
E/D
Sources and methods
2024: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 323/229.
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: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 321/4.
presidential history
Party record book
Rosemont, PA · 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
73.5%
1,707 votes · D+47.7
Runner-up · Kamala Harris, 2024 · 71.0%
Republican
Mitt Romney2012
42.2%
594 votes · D+14.5
Runner-up · George W. Bush, 2004 · 38.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
1,707votes
73.5% of the vote · D+47.7
Runner-up · Kamala Harris, 2024 · 1,419 votes
Republican
Donald Trump2020
600votes
25.8% of the vote · D+47.7
Runner-up · Mitt Romney, 2012 · 594 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
+44.4pts D vs U.S.
Place D+43.0 · U.S. R+1.5
Runner-up · Joe Biden, 2020 · +43.2 pts
Republican
Mitt Romney2012
−10.7pts R vs U.S.
Place D+14.5 · U.S. D+3.9
Runner-up · John McCain, 2008 · −22.1 pts
U.S. House elections · 2 House
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.
Rosemont · how this place’s counties split between candidates 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 there is no roll-up above it. Each cell counts how many of this place’s counties a candidate led — a count of records, not a vote total. Who led the place as a whole is not knowable from these returns, because county rows carry a leader and a lead but no per-candidate votes.
Presidential nominating contests in Rosemont, 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.
Rosemont sits in the Mid-Atlantic. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 47.7 points in 2020. Between 2020 and 2024 the city moved 4.7 points toward the Republican candidate; the 2024 margin was 43.0 points.
A population of 3,421, a 74% non-Hispanic-white share, and a median household income of $88,322 describe the city.
In 2024, Rosemont, Pennsylvania voted Democratic by 43.0 points (D+43.0), carried by the Democratic candidate. Out of 2,000 votes cast, 1,419 went Democratic and 560 went Republican.
How many people live in Rosemont, Pennsylvania?
Rosemont, Pennsylvania has a population of 3,421 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Rosemont, Pennsylvania?
Median household income in Rosemont, Pennsylvania is $88,322 — above the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Rosemont, Pennsylvania?
Akashic tracks 6 presidential elections in Rosemont, Pennsylvania from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
