November 2008 Election - Voter Turnout
| County | Registered Voters | Ballots Cast | Percent |
| Multnomah | 350,622 | 304,125 | 86.74% |
| Clackamas | 514 | 446 | 86.77% |
| Washington | 905 | 804 | 88.84% |
| TOTAL | 352,041 | 305,375 | 88.74% |
Percent of eligible Portland voters casting ballots in 2008 Primary Election: 86.74%