| District ▲ | Winner | Party | Votes | % | Margin |
|---|---|---|---|---|---|
| PA-01 | DEM | 185,591 | 80.9% | D+61.8 | |
| PA-02 | DEM | 213,927 | 76.8% | D+54.4 | |
| PA-03 | DEM | 221,971 | 58.9% | D+19.8 | |
| PA-04 | Ron KlinkDEM | DEM | 237,922 | 78.5% | D+58.1 |
| PA-05 | REP | 188,911 | 100.0% | R+100.0 | |
| PA-06 | Tim HoldenDEM | DEM | 208,006 | 52.1% | D+4.1 |
| PA-07 | Curt WeldonREP | REP | 273,898 | 66.0% | R+32.5 |
| PA-08 | REP | 249,538 | 51.9% | R+6.2 | |
| PA-09 | Bud ShusterREP | REP | 182,406 | 100.0% | R+100.0 |
| PA-10 | REP | 209,548 | 90.4% | R+90.4 | |
| PA-11 | DEM | 206,987 | 67.1% | D+34.2 | |
| PA-12 | DEM | 166,916 | 100.0% | D+100.0 | |
| PA-13 | DEM | 253,997 | 50.3% | D+0.5 | |
| PA-14 | DEM | 229,038 | 72.3% | D+45.5 | |
| PA-15 | Paul McHaleDEM | DEM | 213,324 | 52.2% | D+5.6 |
| PA-16 | REP | 212,564 | 64.8% | R+29.7 | |
| PA-17 | REP | 216,039 | 69.5% | R+39.0 | |
| PA-18 | REP | 254,329 | 60.6% | R+22.6 | |
| PA-19 | REP | 217,587 | 45.3% | R+10.9 | |
| PA-20 | DEM | 226,489 | 50.7% | D+1.5 | |
| PA-21 | REP | 221,531 | 68.0% | R+36.1 |