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United States · Election results history · 1978 Senate · Oregon
Election 1978 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

1978 US Senate election in Oregon

Mark Hatfield (Republican) beat Vern Cook (Democrat) in Oregon in 1978, 61.6% to 38.3%, a margin of 23.4 points and 208,549 votes.

The Republican hold continued from 1972, when Mark Hatfield also won.

Republicans led in 33 of the 36 counties as they stood then and Democrats in 3. The largest, Multnomah, cast 209,709 votes and went to the Republican by 19.7 points. The closest was Harney, where 29 votes separated the two parties.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Senate

CandidatePartyVotesShare
Mark Hatfield won Republican 550,165 61.6%
Vern Cook Democratic 341,616 38.3%
All other candidates 737 0.1%
Total892,518

Every county

CountyDemocratRepublicanOthersTotalMargin
Multnomah 83,998 40.1% 125,355 59.8% 356 209,709 R+19.7
Lane 30,186 33.1% 60,818 66.8% 60 91,064 R+33.6
Clackamas 32,735 38.0% 53,428 62.0% 48 86,211 R+24.0
Washington 26,924 32.7% 55,411 67.3% 30 82,365 R+34.6
Marion 23,744 35.2% 43,683 64.7% 44 67,471 R+29.6
Jackson 13,255 33.5% 26,277 66.4% 23 39,555 R+32.9
Douglas 15,446 52.9% 13,717 47.0% 17 29,180 D+5.9
Linn 10,993 39.8% 16,628 60.2% 4 27,625 R+20.4
Benton 6,715 27.6% 17,579 72.3% 15 24,309 R+44.7
Coos 9,827 46.2% 11,458 53.8% 6 21,291 R+7.7
Deschutes 7,214 37.6% 11,988 62.4% 19,202 R+24.9
Josephine 7,781 43.3% 10,167 56.6% 9 17,957 R+13.3
Klamath 8,687 49.2% 8,980 50.8% 7 17,674 R+1.7
Yamhill 6,547 37.6% 10,877 62.4% 2 17,426 R+24.8
Polk 5,637 34.3% 10,766 65.6% 9 16,412 R+31.3
Umatilla 5,400 37.7% 8,917 62.2% 11 14,328 R+24.5
Columbia 6,008 47.1% 6,746 52.9% 5 12,759 R+5.8
Lincoln 5,292 41.6% 7,437 58.4% 3 12,732 R+16.8
Clatsop 4,097 34.1% 7,900 65.8% 3 12,000 R+31.7
Union 3,323 40.2% 4,939 59.7% 13 8,275 R+19.5
Tillamook 3,283 40.0% 4,921 59.9% 6 8,210 R+20.0
Wasco 3,434 43.0% 4,555 57.0% 2 7,991 R+14.0
Malheur 3,124 41.6% 4,385 58.4% 2 7,511 R+16.8
Curry 2,511 41.7% 3,515 58.3% 6,026 R+16.7
Hood River 2,191 38.8% 3,463 61.2% 5,654 R+22.5
Baker 2,615 46.5% 2,965 52.8% 38 5,618 R+6.2
Crook 1,902 43.2% 2,497 56.7% 4 4,403 R+13.5
Jefferson 1,459 40.9% 2,108 59.1% 2 3,569 R+18.2
Grant 1,132 38.8% 1,785 61.2% 2,917 R+22.4
Lake 1,331 46.4% 1,540 53.6% 2,871 R+7.3
Harney 1,439 50.5% 1,410 49.5% 2 2,851 D+1.0
Wallowa 1,476 55.5% 1,171 44.0% 12 2,659 D+11.5
Morrow 885 41.8% 1,229 58.1% 3 2,117 R+16.2
Sherman 401 40.1% 600 59.9% 1,001 R+19.9
Gilliam 358 38.7% 568 61.3% 926 R+22.7
Wheeler 266 41.0% 382 58.9% 1 649 R+17.9

Counties as they stood in 1978; some have since been split, merged or renamed. Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Oregon Senate elections we hold

YearWinnerMargin
2022 Ron Wyden (D) D+14.9
2020 Jeff Merkley (D) D+17.6
2016 Ron Wyden (D) D+23.3
2014 Jeff Merkley (D) D+18.9
2010 Ron Wyden (D) D+18.0
2008 Jeff Merkley (D) D+3.4
2004 Ron Wyden (D) D+31.6
2002 Gordon Smith (R) R+16.6
1998 Ron Wyden (D) D+27.3
1996 Gordon Smith (R) R+3.9
1992 Bob Packwood (R) R+5.6
1990 Mark O. Hatfield (R) R+7.5
1986 Bob Packwood (R) R+26.9
1984 Mark O. Hatfield (R) R+33.1
1980 Bob Packwood (R) R+8.1
1978 Mark Hatfield (R) R+23.4
1974 Bob Packwood (R) R+10.8
1972 Mark Hatfield (R) R+7.6
1968 Bob Packwood (R) R+0.4
1966 Mark Hatfield (R) R+3.5
1962 Wayne Morse (D) D+8.3
1960 Maurine Neuberger (D) D+9.2
1956 Wayne Morse (D) D+8.4
1954 Richard Neuberger (D) D+0.4
1950 Wayne Morse (R) R+51.6
1948 Guy Cordon (R) R+20.1
1944 Wayne Morse (R) R+21.4
1942 Charles McNary (R) R+54.1
1938 Rufus C. Holman (R) R+9.7
1936 Charles McNary (R) R+1.4
1932 Frederick Steiwer (R) R+13.9
1930 Charles McNary (R) R+30.1
1926 Frederick Steiwer (R) R+3.4
1924 Charles McNary (R) R+41.3
1920 Robert Stanfield (R) R+7.2
1918 Charles McNary (R) R+11.9
1914 George Chamberlain (D) D+9.5