Elections / 2004 · Senate · PA
Pennsylvania — 2004 U.S. Senate election
Akashicstate2004 Senate electionPennsylvania · U.S. SenateSpecterR+10.6
How it voted
Share of the 2004 vote
| Arlen Specter (i) ✓Republican | 52.6% | 2,925,080 |
|---|---|---|
| Joseph M. HoeffelDemocrat | 42.0% | 2,334,126 |
| James N. ClymerConstitution | 4.0% | 220,056 |
2004Senate margin
D+60R+60
67 counties, each filled by 2004 D-vs-R margin. Hover any county for its result.
County-level results (67 counties) — table
| County | Winner | Margin |
|---|---|---|
| ADAMS, PA | Republican | R+39.7 |
| ALLEGHENY, PA | Democratic | D+3.0 |
| ARMSTRONG, PA | Republican | R+24.9 |
| BEAVER, PA | Democratic | D+0.9 |
| BEDFORD, PA | Republican | R+43.0 |
| BERKS, PA | Republican | R+18.8 |
| BLAIR, PA | Republican | R+36.9 |
| BRADFORD, PA | Republican | R+45.6 |
| BUCKS, PA | Republican | R+15.8 |
| BUTLER, PA | Republican | R+27.3 |
| CAMBRIA, PA | Republican | R+8.6 |
| CAMERON, PA | Republican | R+30.3 |
| CARBON, PA | Republican | R+16.4 |
| CENTRE, PA | Republican | R+15.0 |
| CHESTER, PA | Republican | R+22.6 |
| CLARION, PA | Republican | R+31.5 |
| CLEARFIELD, PA | Republican | R+22.3 |
| CLINTON, PA | Republican | R+24.9 |
| COLUMBIA, PA | Republican | R+31.9 |
| CRAWFORD, PA | Republican | R+32.8 |
| CUMBERLAND, PA | Republican | R+39.1 |
| DAUPHIN, PA | Republican | R+23.9 |
| DELAWARE, PA | Republican | R+6.9 |
| ELK, PA | Republican | R+20.7 |
| ERIE, PA | Republican | R+23.4 |
| FAYETTE, PA | Democratic | D+4.1 |
| FOREST, PA | Republican | R+31.8 |
| FRANKLIN, PA | Republican | R+46.6 |
| FULTON, PA | Republican | R+51.6 |
| GREENE, PA | Republican | R+6.3 |
| HUNTINGDON, PA | Republican | R+38.1 |
| INDIANA, PA | Republican | R+19.5 |
| JEFFERSON, PA | Republican | R+33.9 |
| JUNIATA, PA | Republican | R+46.9 |
| LACKAWANNA, PA | Republican | R+13.2 |
| LANCASTER, PA | Republican | R+35.0 |
| LAWRENCE, PA | Republican | R+6.9 |
| LEBANON, PA | Republican | R+41.9 |
| LEHIGH, PA | Republican | R+11.0 |
| LUZERNE, PA | Republican | R+16.0 |
| LYCOMING, PA | Republican | R+38.4 |
| MCKEAN, PA | Republican | R+41.3 |
| MERCER, PA | Republican | R+9.6 |
| MIFFLIN, PA | Republican | R+45.2 |
| MONROE, PA | Republican | R+14.1 |
| MONTGOMERY, PA | Republican | R+7.2 |
| MONTOUR, PA | Republican | R+37.1 |
| NORTHAMPTON, PA | Republican | R+11.4 |
| NORTHUMBERLAND, PA | Republican | R+31.5 |
| PERRY, PA | Republican | R+47.2 |
| PHILADELPHIA, PA | Democratic | D+42.1 |
| PIKE, PA | Republican | R+28.5 |
| POTTER, PA | Republican | R+49.9 |
| SCHUYLKILL, PA | Republican | R+28.2 |
| SNYDER, PA | Republican | R+45.6 |
| SOMERSET, PA | Republican | R+28.5 |
| SULLIVAN, PA | Republican | R+36.6 |
| SUSQUEHANNA, PA | Republican | R+38.0 |
| TIOGA, PA | Republican | R+47.2 |
| UNION, PA | Republican | R+33.3 |
| VENANGO, PA | Republican | R+32.1 |
| WARREN, PA | Republican | R+33.9 |
| WASHINGTON, PA | Republican | R+6.3 |
| WAYNE, PA | Republican | R+38.2 |
| WESTMORELAND, PA | Republican | R+11.5 |
| WYOMING, PA | Republican | R+40.7 |
| YORK, PA | Republican | R+33.1 |
presidential baselinePresident 2004D+2.5Senate 2004R+10.6vs. baselineR+13.1
Pennsylvania's 2004 Senate race ran 13.1 points more Republican than the presidential race on the same ballot.
Pennsylvania's Senate margins
Every contest in our store, 1976–2024
| Year | Margin (D minus R) |
|---|---|
| 1976 | −5.6% |
| 1980 | −2.4% |
| 1982 | −20.1% |
| 1986 | −13.6% |
| 1988 | −34.0% |
| 1992 | −2.8% |
| 1994 | −2.5% |
| 1998 | −26.6% |
| 2000 | −6.9% |
| 2004 | −10.6% |
| 2006 | +17.4% |
| 2010 | −2.0% |
| 2012 | +9.1% |
| 2016 | −1.4% |
| 2018 | +12.9% |
| 2022 | +4.9% |
| 2024 | −0.2% |
Same ballot, 2004PA
Source. MIT Election Data + Science Lab — 2004 US Senate returns, party-classified by literal ballot party · county returns aggregated from precinct-level results. Real returns — nothing estimated.