Elections / 1984 · US Senate
The 1984 Senate map
33 Senate contests were decided in 1984: Democrats won 16, Republicans 17. Every contest below links to its page with the state's full Senate history.
1984 U.S. Senate elections
Dem. caucus 47 +151for control53 Republicans −1
5 seats flipped (IA, IL, KY, TN, WY) — Republicans held control. Independents (Sanders, King) are counted in the caucus they organize with and shown in gold on the map.
NHMARINJDE
States with a seat up this cycle, filled by margin · cyan outlines a seat that flipped party · gold an independent · hover for the detail
Every contest
Statewide totals; candidate-level detail joins when the raw store is re-fetched with names.
| State | Won | Margin | Pres. 1984 | Democratic | Republican | Total |
|---|---|---|---|---|---|---|
| Alaska | R | R+36.8 | 58,804 | 146,919 | 206,438 | |
| Alabama | D | R+22.4 | 860,535 | 498,508 | 1,371,234 | |
| Arkansas | D | R+22.2 | 502,341 | 373,615 | 875,956 | |
| Colorado | R | R+28.3 | 449,327 | 833,821 | 1,297,809 | |
| Delaware | D | R+19.9 | 147,831 | 98,101 | 245,932 | |
| Georgia | D | R+20.4 | 1,344,104 | 337,196 | 1,681,344 | |
| Iowa | D | R+7.4 | 716,883 | 564,381 | 1,292,700 | |
| Idaho | R | R+46.0 | 105,591 | 293,193 | 406,168 | |
| Illinois | D | R+12.9 | 2,397,165 | 2,308,039 | 4,787,335 | |
| Kansas | R | R+33.7 | 211,664 | 757,402 | 996,729 | |
| Kentucky | R | R+20.7 | 639,721 | 644,990 | 1,292,407 | |
| Louisiana | D | R+22.6 | 1 | 0 | 1 | |
| Massachusetts | D | R+2.8 | 1,393,150 | 1,136,913 | 2,530,471 | |
| Maine | R | R+22.1 | 142,626 | 404,414 | 551,406 | |
| Michigan | D | R+19.0 | 1,915,831 | 1,745,302 | 3,700,938 | |
| Minnesota | R | D+0.2 | 852,844 | 1,199,926 | 2,066,143 | |
| Mississippi | R | R+24.5 | 371,926 | 580,314 | 952,240 | |
| Montana | D | R+22.3 | 215,704 | 154,308 | 379,155 | |
| North Carolina | R | R+24.0 | 1,070,488 | 1,156,768 | 2,239,051 | |
| Nebraska | D | R+41.7 | 332,217 | 307,147 | 639,668 | |
| New Hampshire | R | R+37.7 | 157,447 | 225,828 | 384,369 | |
| New Jersey | D | R+20.9 | 1,986,644 | 1,080,100 | 3,096,456 | |
| New Mexico | R | R+20.5 | 141,253 | 361,371 | 502,634 | |
| Oklahoma | D | R+37.9 | 906,131 | 280,638 | 1,197,937 | |
| Oregon | R | R+12.2 | 406,122 | 808,152 | 1,214,735 | |
| Rhode Island | D | R+3.6 | 285,811 | 107,545 | 393,356 | |
| South Carolina | R | R+28.0 | 306,982 | 644,815 | 965,130 | |
| South Dakota | R | R+26.5 | 80,537 | 235,176 | 315,713 | |
| Tennessee | D | R+16.3 | 1,000,607 | 557,016 | 1,648,036 | |
| Texas | R | R+27.5 | 2,202,557 | 3,111,348 | 5,314,178 | |
| Virginia | R | R+25.2 | 601,142 | 1,406,194 | 2,007,487 | |
| West Virginia | D | R+10.5 | 374,233 | 344,680 | 722,212 | |
| Wyoming | R | R+42.3 | 40,525 | 146,373 | 186,898 |
Source. MIT Election Data + Science Lab — 1984 US Senate returns, party-classified by literal ballot party · statewide certified totals. Real returns — nothing estimated.