2004Final results
2004 election for Pennsylvania Senate District 9
Pennsylvania State Senate · Pennsylvania
Dominic F. Pileggi (R) won with 59.4% of the vote, defeating Thomas J. Bosak (D) by 18.8 points.
Dominic F. PileggiRepublican · winner
59.4%71,379
Thomas J. BosakDemocrat
40.6%48,784
120,163 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2004
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET