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United States · Election results history · 2018 Senate · Hawaii
Election 2018 Results

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2018 US Senate election in Hawaii

Mazie K. Hirono (Democrat) beat Ron Curtis (Republican) in Hawaii in 2018, 71.2% to 28.8%, a margin of 42.3 points and 164,281 votes.

The Democratic hold continued from 2012, when Mazie Hirono also won.

Democrats led in 4 of the 4 counties. The largest, Honolulu, cast 256,208 votes and went to the Democrat by 37.9 points. The closest was Kauai, where 12,390 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
Mazie K. Hirono won Democratic 276,316 71.2%
Ron Curtis Republican 112,035 28.8%
Total388,351

Every county

CountyDemocratRepublicanOthersTotalMargin
Honolulu 176,705 69.0% 79,503 31.0% 256,208 D+37.9
Hawaii 43,348 74.3% 15,031 25.7% 58,379 D+48.5
Maui 37,753 76.8% 11,381 23.2% 49,134 D+53.7
Kauai 18,510 75.2% 6,120 24.8% 24,630 D+50.3

Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Hawaii Senate elections we hold

YearWinnerMargin
2024 Mazie K. Hirono (D) D+32.7
2022 Brian Schatz (D) D+45.2
2018 Mazie K. Hirono (D) D+42.3
2016 Brian Schatz (D) D+51.4
2012 Mazie Hirono (D) D+25.2
2010 Daniel K. Inouye (D) D+53.2
2006 Daniel K. Akaka (D) D+24.6
2004 Daniel K. Inouye (D) D+54.5
2000 Daniel K. Akaka (D) D+48.2
1998 Daniel K. Inouye (D) D+61.4
1994 Daniel K. Akaka (D) D+47.6
1992 Daniel Inouye (D) D+30.3
1988 Spark Matsunaga (D) D+55.9
1986 Daniel K. Inouye (D) D+47.1
1982 Spark Matsunaga (D) D+63.1
1980 Daniel K. Inouye (D) D+59.5
1976 Spark M. Matsunaga (D) D+13.1
1974 Daniel Inouye (D) D+82.9
1970 Hiram L. Fong (R) R+3.1
1968 Daniel Inouye (D) D+68.4
1964 Hiram L. Fong (R) R+6.7
1962 Daniel Inouye (D) D+38.8