2010 Delaware Senate election

The 2010 Delaware Senate election was held on November 2, 2010, to elect 11 of the 21 members to Delaware's Senate. The election coincided with the elections for other offices, including the U.S. Senate, U.S. House of Representatives, and state house. The primary election was held on September 13, 2010.

Detailed results
Results of the 2010 Delaware Senate election by district:

District 1
Incumbent Democrat Harris McDowell III has represented the 1st district since 1977.

District 5
Incumbent Republican Catherine Cloutier has represented the 5th district since 2001.

District 7
Incumbent Democrat Patti Blevins has represented the 7th district since 1991.

District 8
Incumbent Democrat David Sokola has represented the 8th district since 1991.

District 9
Incumbent Democrat Karen Peterson has represented the 9th district since 2003.

District 12
Incumbent Republican Dorinda Connor has represented the 12th district since 1997.

District 13
Incumbent Democrat Majority Leader David McBride has represented the 13th district since 1979.

District 14
Incumbent Democrat Bruce Ennis has represented the 14th district since 2007.

District 15
Incumbent Democrat Nancy Cook has represented the 15th district since 1975. Cook lost re-election to Republican David Lawson.

District 19
Incumbent Republican Joseph Booth has represented the 19th district since winning a special election in 2009 to replace Democrat Thurman Adams Jr., who had died in office.
 * Republican primary


 * General election

District 20
Incumbent Democrat George Bunting has represented the 20th district since 1997.
 * Democratic primary


 * General election