| Exit poll | 99% of precincts reporting  | | | Candidate | Votes | % of vote | | | Al Gore (DEM) | 2,465,412 | 51 | | | George W. Bush (REP) | 2,264,309 | 46 | | | Ralph Nader (GRN) | 102,453 | 2 | | | Patrick J. Buchanan (RFM) | 16,879 | 0 | | | |
| Exit poll | 99% of precincts reporting  | | | Candidate | Votes | % of vote | | | Rick Santorum (REP)* | 2,473,118 | 53 | | | Ron Klink (DEM) | 2,134,734 | 45 | | | |
| | | | District 1 | 98% of precincts reporting  | | | Candidate | Votes | % of vote | | | Robert A. Brady (DEM)* | 147,959 | 88 | | | Steven N. Kush (REP) | 20,270 | 12 | | | |
| District 2 | 98% of precincts reporting  | | | Candidate | Votes | % of vote | | | Chaka Fattah (DEM)* | 175,512 | 98 | | | |
| District 3 | 99% of precincts reporting  | | | Candidate | Votes | % of vote | | | Robert A. Borski (DEM)* | 129,838 | 69 | | | Charles F. Dougherty (REP) | 58,712 | 31 | | | |
| District 4 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Melissa Hart (REP) | 145,348 | 59 | | | Terry E. Van Horne (DEM) | 100,945 | 41 | | | |
| District 5 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | John E. Peterson (REP)* | 147,425 | 86 | | | |
| District 6 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Tim Holden (DEM)* | 136,663 | 67 | | | Thomas G. Kopel (REP) | 68,468 | 33 | | | |
| District 7 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Curt Weldon (REP)* | 171,670 | 65 | | | Peter A. Lennon (DEM) | 93,655 | 35 | | | |
| District 8 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Jim Greenwood (REP)* | 153,779 | 59 | | | Ronald L. Strouse (DEM) | 100,520 | 39 | | | |
| District 9 | 0% of precincts reporting  | | | Candidate | Votes | % of vote | | | Bud Shuster (REP)* | 0 | 0 | | | |
| District 10 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Don Sherwood (REP)* | 124,151 | 53 | | | Patrick Casey (DEM) | 111,879 | 47 | | | |
| District 11 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Paul E. Kanjorski (DEM)* | 130,780 | 66 | | | Stephen A. Urban (REP) | 66,450 | 34 | | | |
| District 12 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | John P. Murtha (DEM)* | 143,547 | 71 | | | Bill Choby (REP) | 55,541 | 27 | | | |
| District 13 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Joseph M. Hoeffel (DEM)* | 142,276 | 53 | | | Stewart J. Greenleaf (REP) | 122,931 | 46 | | | |
| District 14 | 0% of precincts reporting  | | | Candidate | Votes | % of vote | | | William J. Coyne (DEM)* | 0 | 0 | | | |
| District 15 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Pat Toomey (REP)* | 117,928 | 53 | | | Ed O'Brien (DEM) | 103,269 | 47 | | | |
| District 16 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Joseph R. Pitts (REP)* | 161,653 | 67 | | | Bob Yorczyk (DEM) | 79,674 | 33 | | | |
| District 17 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | George W. Gekas (REP)* | 166,086 | 72 | | | Leslye Hess Herrmann (DEM) | 66,124 | 28 | | | |
| District 18 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Mike Doyle (DEM)* | 155,400 | 69 | | | Craig C. Stephens (REP) | 68,554 | 31 | | | |
| District 19 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Todd Platts (REP) | 167,443 | 73 | | | Jeff Sanders (DEM) | 61,039 | 26 | | | |
| District 20 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Frank Mascara (DEM)* | 144,476 | 64 | | | Ronald J. Davis (REP) | 80,146 | 36 | | | |
| District 21 | 100% of precincts reporting  | | | Candidate | Votes | % of vote | | | Phil English (REP)* | 134,325 | 61 | | | Marc A. Flitter (DEM) | 86,838 | 39 | | | |
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