| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| PA-01 | DEM | 299,010 | 82.2% | D+64.4 | |
| PA-02 | Dwight EvansDEM | DEM | 357,645 | 90.2% | D+80.3 |
| PA-03 | REP | 244,893 | 100.0% | R+100.0 | |
| PA-04 | REP | 334,000 | 66.1% | R+32.1 | |
| PA-05 | REP | 307,843 | 67.2% | R+34.3 | |
| PA-06 | REP | 362,469 | 57.2% | R+14.5 | |
| PA-07 | REP | 379,502 | 59.5% | R+18.9 | |
| PA-08 | REP | 380,818 | 54.4% | R+8.8 | |
| PA-09 | Bill ShusterREP | REP | 294,565 | 63.3% | R+26.7 |
| PA-10 | REP | 301,105 | 70.2% | R+40.3 | |
| PA-11 | REP | 313,221 | 63.7% | R+27.3 | |
| PA-12 | REP | 359,204 | 61.8% | R+23.5 | |
| PA-13 | DEM | 239,316 | 100.0% | D+100.0 | |
| PA-14 | DEM | 343,292 | 74.4% | D+48.7 | |
| PA-15 | REP | 326,474 | 58.4% | R+20.4 | |
| PA-16 | REP | 313,773 | 53.8% | R+10.9 | |
| PA-17 | DEM | 293,164 | 53.8% | D+7.6 | |
| PA-18 | Tim MurphyREP | REP | 293,684 | 100.0% | R+100.0 |