Voter Turnout for General Election 2004
| Voter Turnout (%) | Total | Democrat | Republican | Other | No affiliation |
| Lehigh | 79.38 | 79.94 | 81.25 | 82.98 | 69.89 |
| Northampton | 69.82 | 70.74 | 72.92 | 60.24 | 59.79 |
Source: Lehigh County and Northampton County Voter Registration Offices