The 2004 Kentucky Senate election was held on November 2, 2004. The Republican and Democratic primary elections were held on May 18. Half of the senate (all odd-numbered seats) were up for election. Republicans maintained their majority in the chamber without gaining or losing any seats.
A numbered map of the senate districts at the time can be viewed here.
Retiring incumbents.
A total of four senators retired, none of which ran for other offices.
Incumbents defeated.
Two incumbents lost renomination in the primary election.
In the primary election.
Democrats.
None.
Republicans.
Two Republicans lost renomination.
In the general election.
None.
Summary by district.
Certified results by the Kentucky Secretary of State are available online for the primary election and general election.
† – Incumbent not seeking re-election
Closest races.
Seats where the margin of victory was under 10%:
Special elections.
District 17 special.
The 17th district was vacant beginning January 1, 2003, following incumbent senator Daniel Mongiardo's election to the 30th district in November 2002. Damon Thayer was elected on January 28, 2003, for the remainder of the term.
! scope="col" colspan="2" style="width: 15em" |Party
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District 4 special.
J. Dorsey Ridley was elected in July 2004 following the death of Paul Herron.
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District 1.
Incumbent senator Bob Jackson did not seek reelection. He was succeeded by Republican Kenneth W. Winters.
General election.
Results.
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District 3.
Incumbent senator Joey Pendleton won reelection, defeating Republican Tracy Dean Hann.
General election.
Results.
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District 5.
Incumbent Republican senator Virgil Moore was defeated for renomination by Carroll Gibson.
Democratic primary.
Results.
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Republican primary.
Results.
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General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 7.
The 2002 redistricting of the senate moved the 7th district from Louisville to part of Lexington, Frankfort, and surrounding counties. Incumbent senator Lindy Casebier did not seek reelection and was succeeded by Democrat Julian M. Carroll.
Democratic primary.
Results.
! scope="col" colspan="2" style="width: 15em" |Party
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! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
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District 9.
Incumbent senator Richard "Richie" Sanders won reelection unopposed.
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 11.
Incumbent senator Richard L. "Dick" Roeding won reelection, defeating primary election challenger Charlie Walton.
Republican primary.
Results.
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! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 13.
Incumbent senator Ernesto Scorsone won reelection unopposed.
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 15.
Incumbent senator Vernie McGaha won reelection, defeating primary election challenger David Carr.
Republican primary.
Results.
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! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 17.
Incumbent senator Damon Thayer won reelection, defeating Democrat Cliff Wallace.
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 19.
Incumbent senator Tim Shaughnessy won reelection, defeating primary and general election challengers.
Democratic primary.
Results.
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! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 21.
Incumbent Republican senator Albert Robinson was defeated for renomination by Tom Jensen.
Republican primary.
Results.
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! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 23.
Incumbent senator Jack Westwood won reelection, defeating Democrat Kathryn Groob.
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 25.
Incumbent senator Robert Stivers won reelection, defeating Constitution Party candidate Jeffrey L. Hillebrandt.
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 27.
Incumbent senator Walter "Doc" Blevins won reelection, defeating Republican Tim York.
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 29.
Incumbent senator Johnny Ray Turner won reelection, defeating primary election challenger Eric Shane Hamilton.
Democratic primary.
Results.
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! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
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! style="color:inherit;background-color: ; width: 5px;" |
! colspan="3" style="text-align:right;" | Total votes
District 31.
Incumbent senator Ray S. Jones II won reelection, defeating Republican candidate Chris Ratliff.
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 33.
Incumbent senator Gerald A. Neal won reelection unopposed.
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 35.
Incumbent senator David K. Karem did not seek reelection. He was succeeded by Democrat Denise Harper Angel.
Democratic primary.
Results.
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! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
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! colspan="3" style="text-align:right;" | Total votes
District 37.
Incumbent senator Larry Saunders did not seek reelection. The winner of the general election, Republican candidate Dana Seum Stephenson, was later declared to be ineligible due to her failure to meet residency requirements outlined in the state constitution. The seat remained vacant for over a year before a special election was held in February 2006, won by Democrat Perry B. Clark.
General election.
Results.
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! scope="col" style="width: 17em" |Candidate
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! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align:right;" | Total votes
References.
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