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1876–2024
Elections / 2008 · US Senate

The 2008 Senate map

33 Senate contests were decided in 2008: Democrats won 20, Republicans 13. Every contest below links to its page with the state's full Senate history.

2008 US Senate elections
2008 Senate margin by stateA map of the United States with each state filled by its 2008 result — deep red (Republican) through neutral to deep blue (Democratic), and gold where an independent or third-party candidate carried the state.Alabama · R+26.9Alaska · D+1.2Arizona · —Colorado · D+10.3Florida · —Georgia · R+14.9Indiana · —Kansas · R+23.6Maine · R+22.7Massachusetts · D+34.9Minnesota · EvenNew Jersey · D+14.1North Carolina · D+8.5North Dakota · —Oklahoma · R+17.5Pennsylvania · —South Dakota · D+25.0Texas · R+12.0Wyoming · R+51.4Connecticut · —Missouri · —West Virginia · D+27.5Illinois · D+39.3New Mexico · D+22.7Arkansas · D+79.5California · —Delaware · D+29.4District of Columbia · —Hawaii · —Iowa · D+25.4Kentucky · R+5.9Maryland · —Michigan · D+28.8Mississippi · R+22.9Montana · D+45.8New Hampshire · D+6.3New York · —Ohio · —Oregon · D+3.4Tennessee · R+33.5Utah · —Virginia · D+31.3Washington · —Wisconsin · —Nebraska · R+17.5South Carolina · R+15.3Idaho · R+23.5Nevada · —Vermont · —Louisiana · D+6.4Rhode Island · D+46.8
2008Senate margin
D+60
R+60
States with a Senate contest in 2008, each filled by its result. States without a seat up this cycle are faint.
Smaller states, enlarged
NHD+6.3MAD+34.9RID+46.8NJD+14.1DED+29.4
Blue and red show the Democratic-vs-Republican margin; gold marks a seat an independent won (e.g. Vermont or Maine). Where a state ran two contests in one year, the map shows the regular-cycle result.
Cycle summary
Wins by party — seats decided this cycle, not the resulting chamber balance.
Contests
33
Democratic wins
20
Republican wins
13
Democratic 2020Republican 1313
Every contest
Statewide totals; candidate-level detail joins when the raw store is re-fetched with names.
StateWonMarginDemocraticRepublicanTotal
AlaskaD
+1.2%
151,767147,814316,646
AlabamaR
−26.9%
752,3911,305,3832,057,774
ArkansasD
+79.5%
804,67801,011,754
ColoradoD
+10.3%
1,230,994990,7552,331,486
DelawareD
+29.4%
257,539140,595398,134
GeorgiaR
−14.9%
909,9231,228,0332,137,956
IowaD
+25.4%
941,665560,0061,501,671
IdahoR
−23.5%
219,903371,744644,777
IllinoisD
+39.3%
3,615,8441,520,6215,329,883
KansasR
−23.6%
441,399727,1211,210,690
KentuckyR
−5.9%
847,005953,8161,800,821
LouisianaD
+6.4%
988,298867,1771,896,574
MassachusettsD
+34.9%
1,971,974926,0442,994,247
MaineR
−22.7%
279,510444,300724,430
MichiganD
+28.8%
3,038,3861,641,0704,848,620
MinnesotaD
+0.0%
1,212,6291,212,3172,885,281
MississippiR
−22.9%
480,915766,1111,247,026
MontanaD
+45.8%
348,289129,369477,658
North CarolinaD
+8.5%
2,249,3111,887,5104,270,251
NebraskaR
−17.5%
317,456455,854792,511
New HampshireD
+6.3%
358,438314,403694,357
New JerseyD
+14.1%
1,951,2181,461,0253,482,445
New MexicoD
+22.7%
505,128318,522823,650
OklahomaR
−17.5%
527,736763,3751,346,819
OregonD
+3.4%
864,392805,1591,767,504
Rhode IslandD
+46.8%
320,644116,174436,818
South CarolinaR
−15.3%
790,6211,076,5341,867,155
South DakotaD
+25.0%
237,889142,784380,673
TennesseeR
−33.5%
767,2361,579,4772,424,585
TexasR
−12.0%
3,389,3654,337,4697,912,075
VirginiaD
+31.3%
2,369,3271,228,8303,640,116
West VirginiaD
+27.5%
447,560254,629702,189
WyomingR
−51.4%
60,631189,046249,677