2004 Massachusetts Senate election
Elections to the 185th Massachusetts Senate were held on November 2, 2004. The Democrats picked up one former Republican seat. The 185th Massachusetts General Court began in January 2005, and consisted of 34 Democrats and 6 Republican State Senators.
The 2004 Massachusetts House election was held on the same date as the Senate election, as well as Federal and Congressional elections. Massachusetts Senators serve two-year terms.
Results
!style="background-color:#E9E9E9" align=left width=350 10em" colspan="2" rowspan="2" | Party!style="background-color:#E9E9E9" align=center colspan="3" | Seats
!style="background-color:#E9E9E9" align=center colspan="2" | Popular Vote
!style="background-color:#E9E9E9" align=right| 2002
!style="background-color:#E9E9E9" align=right| 2004
!style="background-color:#E9E9E9" align=right| +/−
!style="background-color:#E9E9E9" align=right| Vote
!style="background-color:#E9E9E9" align=right| %
! colspan=2 align=left | Total
Overview
''Official results from on the Massachusetts Elections Division website''Primary results
''Official results from on the Massachusetts Elections Division website''Democratic primary
| District | Candidates | Votes | % |
| 2nd Hampden and Hampshire | Write-In: Todd McGee | 244 | 32% |
| 2nd Middlesex and Norfolk | Gerard E. Desilets | 3,528 | 28% |
| 2nd Middlesex and Norfolk | Adam L. Sistisky | 2,374 | 19% |
| 2nd Middlesex and Norfolk | Karen E. Spilka | 6,808 | 53% |
| Norfolk, Bristol and Middlesex | Angus G. McQuilken | 5,440 | 56% |
| Norfolk, Bristol and Middlesex | Patricia B. Ross | 504 | 5% |
| Norfolk, Bristol and Middlesex | Barbara A. Smith | 695 | 7% |
| Norfolk, Bristol and Middlesex | Gerald A. Wasserman | 3,080 | 32% |
| 1st Suffolk | Jack Hart | 11,126 | 97% |
| 1st Suffolk | Write-In: Carol Y. Mallory-Causey | 27 | 0.2% |
Republican primary
| District | Candidates | Votes | % |
| Bristol and Norfolk | Philip A. Brown | 1,109 | 45% |
| Bristol and Norfolk | David W. McCarter | 1,339 | 55% |
| 4th Middlesex | Richard J. Dellarciprete | 679 | 30% |
| 4th Middlesex | Douglas M. Lucente | 1,564 | 69% |
| Middlesex and Worcester | Rod Jané | 3,243 | 57% |
| Middlesex and Worcester | Arthur G. Vigeant | 2,414 | 43% |