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United States · Election results history · 1966 Senate · Oregon
Election 1966 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.

1966 US Senate election in Oregon

Mark Hatfield (Republican) beat Robert B. Duncan (Democrat) in Oregon in 1966, 51.7% to 48.2%, a margin of 3.5 points and 24,017 votes.

Oregon changed party: in 1960 it went Democratic, for Maurine Neuberger.

Republicans led in 27 of the 36 counties as they stood then and Democrats in 9. The largest, Multnomah, cast 210,260 votes and went to the Democrat by 3.2 points. The closest was Morrow, where 17 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 354,391 51.7%
Robert B. Duncan Democratic 330,374 48.2%
All other candidates 302 0.0%
Total685,067

Every county

CountyDemocratRepublicanOthersTotalMargin
Multnomah 108,458 51.6% 101,709 48.4% 93 210,260 D+3.2
Lane 32,853 49.2% 33,840 50.7% 21 66,714 R+1.5
Clackamas 24,010 47.0% 27,108 53.0% 17 51,135 R+6.1
Washington 19,310 42.3% 26,305 57.6% 27 45,642 R+15.3
Marion 21,761 48.2% 23,326 51.7% 55 45,142 R+3.5
Jackson 12,933 45.1% 15,741 54.9% 9 28,683 R+9.8
Douglas 10,143 46.7% 11,554 53.2% 20 21,717 R+6.5
Linn 10,126 49.8% 10,197 50.2% 20,323 R+0.3
Coos 10,205 55.4% 8,207 44.6% 2 18,414 D+10.9
Benton 4,920 34.4% 9,367 65.6% 14,287 R+31.1
Klamath 6,760 47.6% 7,427 52.3% 14 14,201 R+4.7
Umatilla 6,045 45.4% 7,260 54.6% 2 13,307 R+9.1
Yamhill 5,738 45.2% 6,964 54.8% 4 12,706 R+9.6
Josephine 5,190 43.1% 6,852 56.8% 13 12,055 R+13.8
Clatsop 5,000 45.0% 6,104 54.9% 6 11,110 R+9.9
Polk 5,102 46.2% 5,943 53.8% 3 11,048 R+7.6
Lincoln 5,089 53.4% 4,437 46.6% 1 9,527 D+6.8
Deschutes 4,515 49.1% 4,680 50.9% 2 9,197 R+1.8
Columbia 5,064 56.3% 3,929 43.7% 3 8,996 D+12.6
Wasco 3,760 52.8% 3,366 47.2% 7,126 D+5.5
Malheur 1,869 27.7% 4,878 72.3% 6,747 R+44.6
Tillamook 3,509 52.8% 3,132 47.2% 6,641 D+5.7
Union 2,896 44.9% 3,556 55.1% 6,452 R+10.2
Baker 2,501 44.5% 3,121 55.5% 5,622 R+11.0
Hood River 2,108 46.1% 2,462 53.9% 4,570 R+7.7
Curry 2,078 50.2% 2,057 49.7% 5 4,140 D+0.5
Crook 1,434 50.9% 1,384 49.1% 1 2,819 D+1.8
Jefferson 1,044 41.5% 1,471 58.4% 2 2,517 R+17.0
Harney 1,020 41.5% 1,436 58.4% 2 2,458 R+16.9
Grant 1,005 41.0% 1,445 59.0% 2,450 R+18.0
Wallowa 970 40.6% 1,418 59.4% 2,388 R+18.8
Lake 861 39.6% 1,313 60.4% 2,174 R+20.8
Morrow 867 50.5% 850 49.5% 1,717 D+1.0
Sherman 509 47.3% 566 52.7% 1,075 R+5.3
Gilliam 457 45.2% 553 54.8% 1,010 R+9.5
Wheeler 264 37.9% 433 62.1% 697 R+24.2

Counties as they stood in 1966; 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