HarrisDemocratic69.5%911TrumpRepublican29.5%387OtherAll other candidates1.0%13
D+40.0- Lead
- 524
- Total
- 1,311
- vs nation
- D+41.4
- Turnout
- —
Akashiccity
Mount Oliver, PA
Office (updates table and map)
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
President results by year
Vote totals, margins, and source status
BidenDemocratic69.4%924TrumpRepublican29.4%391OtherAll other candidates1.3%17
D+40.0- Lead
- 533
- Total
- 1,332
- vs nation
- D+35.6
- Turnout
- —
ClintonDemocratic71.0%959TrumpRepublican25.5%344OtherAll other candidates3.5%47
D+45.6- Lead
- 615
- Total
- 1,350
- vs nation
- D+43.5
- Turnout
- —
ObamaDemocratic76.9%1,065RomneyRepublican21.7%300OtherAll other candidates1.4%20
D+55.2- Lead
- 765
- Total
- 1,385
- vs nation
- D+51.4
- Turnout
- —
ObamaDemocratic71.8%1,019McCainRepublican26.5%377OtherAll other candidates1.7%24
D+45.2- Lead
- 642
- Total
- 1,420
- vs nation
- D+37.9
- Turnout
- —
KerryDemocratic71.7%1,014BushRepublican26.7%377OtherAll other candidates1.6%23
D+45.0- Lead
- 637
- Total
- 1,414
- vs nation
- D+47.5
- Turnout
- —
Key facts
- 2024 presidential margin
- D+40.0MIT Election Lab
- Population
- 3,3192024 5-year
- Median household income
- $52,2972024 5-year
- White (non-Hispanic)
- 48.0%2024 5-year
- Black
- 35.5%2024 5-year
- Hispanic / Latino
- 5.3%2024 5-year
- Peak Democratic margin
- D+55.2 in 2012MIT Election Lab
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | +45.0% |
| 2008 | +45.2% |
| 2012 | +55.2% |
| 2016 | +45.6% |
| 2020 | +40.0% |
| 2024 | +40.0% |
DemocraticRepublican
6 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 69.5%Harris911 | 29.5%Trump387 | 1.0% | D+40.0 | ±0.0 | D+41.4 | 1,311 | |
| D | 69.4%Biden924 | 29.4%Trump391 | 1.3% | D+40.0 | R+5.5 | D+35.6 | 1,332 | |
| D | 71.0%Clinton959 | 25.5%Trump344 | 3.5% | D+45.6 | R+9.7 | D+43.5 | 1,350 | |
| D | 76.9%Obama1,065 | 21.7%Romney300 | 1.4% | D+55.2 | D+10.0 | D+51.4 | 1,385 | |
| D | 71.8%Obama1,019 | 26.5%McCain377 | 1.7% | D+45.2 | — | D+37.9 | 1,420 | |
| D | 71.7%Kerry1,014 | 26.7%Bush377 | 1.6% | D+45.0 | — | D+47.5 | 1,414 |
Federal and statewide 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 70.6%901 | 29.4%375 | 1,276 |
| 2020 | D | 77.7%1,014 | 22.3%291 | 1,305 |
Mount Oliver is an independent municipality fully encircled by the city of Pittsburgh, a geographic quirk that shapes its municipal services and voting patterns despite a population of roughly 3,300.
Across the recorded series it reached a Democratic high of 55.2 points in 2012. The 2024 margin was 40.0 points.
A population of 3,319, a 48% non-Hispanic-white share, and a median household income of $52,297 describe the city.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
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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.
Mount Oliver, Pennsylvania. Akashic. https://akashic.app/city/4251744/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Pennsylvania at the ballot boxAll elections →
Frequently asked questions
How did Mount Oliver, Pennsylvania vote in 2024?
In 2024, Mount Oliver, Pennsylvania voted Democratic by 40.0 points (D+40.0), carried by the Democratic candidate. Out of 1,311 votes cast, 911 went Democratic and 387 went Republican.
How many people live in Mount Oliver, Pennsylvania?
Mount Oliver, Pennsylvania has a population of 3,319 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Mount Oliver, Pennsylvania?
Median household income in Mount Oliver, Pennsylvania is $52,297 — below the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Mount Oliver, Pennsylvania?
Akashic tracks 6 presidential elections in Mount Oliver, Pennsylvania from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.