Elections / 1978
The 1978 elections
A midterm cycle: 33 US Senate contests on record. Presidential pages cover the quadrennial years on either side.
1978 US Senate elections
1978Senate margin
D+60R+60
States with a Senate contest in 1978, each filled by its result. States without a seat up this cycle are faint.
Blue and red show the Democratic-vs-Republican margin; gold marks a seat an independent won.
All 33 results, 1978
| State | Senate margin |
|---|---|
| Louisiana | D+100.0 |
| Alabama | D+94.0 |
| Georgia | D+66.3 |
| Arkansas | D+60.2 |
| Rhode Island | D+50.2 |
| Nebraska | D+35.3 |
| Oklahoma | D+32.6 |
| Wyoming | D+24.3 |
| Kentucky | D+24.1 |
| Delaware | D+16.9 |
| New Jersey | D+12.2 |
| Montana | D+11.4 |
| Massachusetts | D+10.2 |
| Michigan | D+4.3 |
| West Virginia | D+1.0 |
| Virginia | R+0.4 |
| Texas | R+0.5 |
| New Hampshire | R+2.2 |
| Iowa | R+3.2 |
| New Mexico | R+6.8 |
| Illinois | R+7.9 |
| North Carolina | R+9.0 |
| South Carolina | R+11.4 |
| Kansas | R+11.5 |
| Mississippi | R+13.5 |
| Tennessee | R+15.2 |
| Minnesota | R+16.2 |
| Colorado | R+18.4 |
| Maine | R+22.7 |
| Oregon | R+23.4 |
| South Dakota | R+33.7 |
| Idaho | R+36.9 |
| Alaska | R+51.7 |
The 1978 cycle at a glance
US Senate
58–41–1
Democrats held
US House
277–157
Democrats held
Governors
D 21 · R 15
36 races
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Governor pages cover 2018–2025: even-year cycles with county-level precinct detail, the odd-year VA/NJ and KY/LA/MS races as certified statewide results. See the methodology for series notes.