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1978 general · November 7, 1978

1978 U.S. Senate election results

Every U.S. Senate race in the 1978 general election, state by state: winners, margins and seats that changed party.

← 1976 general1980 general →

Races35
Changed party0
Unopposed3%1 races

U.S. Senate

D 16 · R 19

RaceWinnerWon byNotes
AlabamaHowell Heflin (D)88.0
Alabama (special)Donald W. Stewart (D)11.7
AlaskaTed Stevens (R)51.5
ArkansasDavid Pryor (D)60.2
ColoradoWilliam Armstrong (R)18.4
DelawareJoseph Biden (D)16.9
GeorgiaSamuel Nunn (D)66.3
IdahoJames McClure (R)36.9
IllinoisCharles H. Percy (R)7.9
IowaRoger W. Jepsen (R)3.2
KansasNancy Kassebaum (R)11.5
KentuckyWalter (dee) Huddleston (D)24.1
LouisianaJohn Johnston (D)Unopposed
MaineWilliam Cohen (R)22.7
MassachusettsPaul E. Tsongas (D)10.2
MichiganCarl Levin (D)4.3
Minnesota (special)David Durenberger (R)26.9
MinnesotaRudolph Boschwitz (R)16.2
MississippiThad Cochran (R)13.5
MontanaMax Baucus (D)11.4
NebraskaJ. James Exon (D)35.3
New HampshireGordon Humphrey (R)2.2
New JerseyWilliam Bradley (D)12.2
New MexicoPete Domenici (R)6.8
North CarolinaJesse Helms (R)9.0
OklahomaDavid Boren (D)32.6
OregonMark Hatfield (R)23.4
Rhode IslandClaiborne Pell (D)50.2
South CarolinaStrom Thurmond (R)11.4
South DakotaLarry Pressler (R)33.7
TennesseeHoward H. Baker (R)15.2
TexasJohn G. Tower (R)0.5
VirginiaJohn Warner (R)0.4
West VirginiaJennings Randolph (D)1.0
WyomingRaymond B. Whitaker (D)24.3

Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: MIT Election Data and Science Lab