Akashic
1876–2024
Elections / 1990 · US Senate

The 1990 Senate map

35 Senate contests were decided in 1990: Democrats won 18, Republicans 17. Every contest below links to its page with the state's full Senate history.

1990 US Senate elections
1990 Senate margin by stateA map of the United States with each state filled by its 1990 result — deep red (Republican) through neutral to deep blue (Democratic), and gold where an independent or third-party candidate carried the state.Alabama · D+21.1Alaska · R+34.6Arizona · —Colorado · R+14.0Florida · —Georgia · D+100.0Indiana · R+7.3Kansas · R+47.2Maine · R+22.7Massachusetts · D+13.6Minnesota · D+2.6New Jersey · D+3.0North Carolina · R+5.1North Dakota · —Oklahoma · D+66.4Pennsylvania · —South Dakota · R+7.3Texas · R+22.8Wyoming · R+27.9Connecticut · —Missouri · —West Virginia · D+36.6Illinois · D+30.1New Mexico · R+45.9Arkansas · D+100.0California · —Delaware · D+26.8District of Columbia · —Hawaii · D+9.4Iowa · D+9.1Kentucky · R+4.4Maryland · —Michigan · D+16.3Mississippi · R+100.0Montana · D+38.7New Hampshire · R+33.9New York · —Ohio · —Oregon · R+7.5Tennessee · D+37.9Utah · —Virginia · R+81.7Washington · —Wisconsin · —Nebraska · D+18.0South Carolina · R+31.7Idaho · R+22.6Nevada · —Vermont · —Louisiana · D+100.0Rhode Island · D+23.7
1990Senate margin
D+60
R+60
States with a Senate contest in 1990, each filled by its result. States without a seat up this cycle are faint.
Smaller states, enlarged
NHR+33.9MAD+13.6RID+23.7NJD+3.0DED+26.8
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
35
Democratic wins
18
Republican wins
17
Democratic 1818Republican 1717
Every contest
Statewide totals; candidate-level detail joins when the raw store is re-fetched with names.
StateWonMarginDemocraticRepublicanTotal
AlaskaR
−34.6%
61,152125,806186,958
AlabamaD
+21.1%
717,814467,1901,185,004
ArkansasD
+100.0%
493,9100493,910
ColoradoR
−14.0%
425,746569,0481,022,027
DelawareD
+26.8%
112,91864,554180,152
GeorgiaD
+100.0%
1,033,43901,033,439
HawaiiD
+9.4%
188,901155,978349,666
IowaD
+9.1%
535,975446,869983,933
IdahoR
−22.6%
122,295193,641315,936
IllinoisD
+30.1%
2,115,3771,135,6283,251,005
IndianaR
−7.3%
696,639806,0481,502,687
KansasR
−47.2%
207,491578,605786,096
KentuckyR
−4.4%
437,976478,034916,010
LouisianaD
+100.0%
101
MassachusettsD
+13.6%
1,321,712992,9172,424,579
MaineR
−22.7%
201,053319,167520,320
MichiganD
+16.3%
1,471,7531,055,6952,560,244
MinnesotaD
+2.6%
911,999864,3751,806,194
MississippiR
−100.0%
0274,244274,244
MontanaD
+38.7%
217,56393,836319,336
North CarolinaR
−5.1%
981,5731,087,3312,068,904
NebraskaD
+18.0%
349,779243,013592,792
New HampshireR
−33.9%
91,299189,792290,808
New JerseyD
+3.0%
977,810918,8741,938,454
New MexicoR
−45.9%
110,033296,712406,745
OklahomaD
+66.4%
735,684148,814884,498
OregonR
−7.5%
507,743590,0951,099,255
Rhode IslandD
+23.7%
225,105138,947364,052
South CarolinaR
−31.7%
244,112482,032750,266
South DakotaR
−7.3%
116,727135,682258,976
TennesseeD
+37.9%
530,898233,703783,813
TexasR
−22.8%
1,429,9862,302,3573,821,432
VirginiaR
−81.7%
0876,7821,073,537
West VirginiaD
+36.6%
276,234128,071404,305
WyomingR
−27.9%
56,848100,784157,632