| Governor | EXIT POLLS | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Martin O'Malley (DEM) | 875,352 | 53% |
| Robert Ehrlich (REP)* | 757,099 | 46% |
| 100% of precincts reporting |
| U.S. Senate | EXIT POLLS | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Ben Cardin (DEM) | 894,830 | 54% |
| Michael Steele (REP) | 723,089 | 44% |
| 100% of precincts reporting |
| U.S. House - District 1 | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Wayne Gilchrest (REP)* | 176,572 | 69% |
| Jim Corwin (DEM) | 80,644 | 31% |
| 100% of precincts reporting |
| U.S. House - District 2 | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Dutch Ruppersberger (DEM)* | 126,330 | 70% |
| Jimmy Mathis (REP) | 53,422 | 30% |
| 100% of precincts reporting |
| U.S. House - District 3 | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| John Sarbanes (DEM) | 138,120 | 65% |
| John White (REP) | 68,987 | 33% |
| 100% of precincts reporting |
| U.S. House - District 4 | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Al Wynn (DEM)* | 118,772 | 81% |
| Moshe Starkman (REP) | 27,433 | 19% |
| 88% of precincts reporting |
| U.S. House - District 5 | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Steny Hoyer (DEM)* | 158,780 | 84% |
| 100% of precincts reporting |
| U.S. House - District 6 | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Roscoe Bartlett (REP)* | 136,622 | 59% |
| Andrew Duck (DEM) | 89,501 | 39% |
| 100% of precincts reporting |
| U.S. House - District 7 | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Elijah Cummings (DEM)* | 0 | 0% |
| 0% of precincts reporting |
| U.S. House - District 8 | COUNTY RESULTS |
| Candidate | Votes | % of votes |
| Chris Van Hollen (DEM)* | 146,867 | 77% |
| Jeffrey Stein (REP) | 40,559 | 21% |
| 99% of precincts reporting |