Allegheny, Pennsylvania — Presidential Election Results
Allegheny, Pennsylvania has voted Democratic in 6 of the last 6 presidential elections on record (2000–2024).
Full Election History, 2000–2024
| Year | Winner | Party | Votes | Vote Share | Margin | Total Votes Cast | Swing |
|---|---|---|---|---|---|---|---|
| 2000 | Al Gore | Democratic | 329,963 | 56.6% | 16.2 pts (94,602 votes) | 582,478 | — |
| 2004 | John Kerry | Democratic | 368,912 | 57.2% | 15.0 pts (96,987 votes) | 645,469 | -1.6 pts |
| 2008 | Barack Obama | Democratic | 373,153 | 57.3% | 15.5 pts (100,806 votes) | 651,380 | +0.5 pts |
| 2012 | Barack Obama | Democratic | 352,687 | 56.7% | 14.6 pts (90,648 votes) | 622,081 | -0.9 pts |
| 2016 | Hillary Clinton | Democratic | 367,617 | 56.5% | 16.6 pts (108,137 votes) | 650,114 | +2.5 pts |
| 2020 | Data not yet available for this cycle — see sourcing note below. | ||||||
| 2024 | Kamala Harris | Democratic | 429,916 | 59.7% | 20.3 pts (146,321 votes) | 720,504 | +3.3 pts |
Trend
Between 2000 and 2024, the two-party presidential margin in Allegheny shifted 3.8 points toward the Democratic candidate, based on recorded county returns. This reflects the vote totals in this dataset only; no claim is made here about the causes of that shift.
Margin Over Time
Democratic candidate's margin (percentage points, two-party vote share). Positive values favor the Democratic candidate; negative values favor the Republican candidate.