The 2020 Minnesota Senate election was held in the U.S. state of Minnesota on November 3, 2020, to elect members to the Senate of the 92nd Minnesota Legislature. A primary election was held in several districts on August 11, 2020. The election coincided with the election of the other house of the Legislature, the House of Representatives, and other elections.

Quick Facts All 67 seats in the Minnesota Senate 34 seats needed for a majority, Turnout ...

2020 Minnesota State Senate election

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All 67 seats in the Minnesota Senate 34 seats needed for a majority
Turnout	79.98% 5.26 pp
Majority party Minority party   Leader Paul Gazelka Susan Kent Party Republican Democratic (DFL) Leader since November 10, 2016 February 1, 2020 Leader's seat 9th–Nisswa 53rd–Woodbury Last election 34 seats, 48.96% 33 seats, 50.12% Seats before 35 32 Seats won 34 33 Seat change 1 1 Popular vote 1,532,446 1,577,523 Percentage 48.39% 49.82% Swing 0.57 pp 0.30 pp
Majority Leader before election Paul Gazelka Republican Elected Majority Leader Paul Gazelka Republican

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The last election in 2016 resulted in the Republican Party of Minnesota winning a majority of seats, after losing a majority to the Minnesota Democratic–Farmer–Labor Party (DFL) only four years earlier in the previous election in 2012. In conjunction with the result of the House election, it also resulted in the return of all-Republican control of the Legislature for the first time since 2012 and only the second time Republicans have had majorities in both houses since the return of partisan elections to the Senate in 1976. Control of the Senate has alternated between the Republicans and the DFL every election since 2010. All-Republican control of the Legislature ended when the DFL won a majority in the House in 2018.

A special election was held for District 11 on February 5, 2019, as a result of the resignation of incumbent DFL Senator Tony Lourey after he was selected to be the next commissioner of human services by Governor-elect Tim Walz in early January 2019.^[1] Republican state representative Jason Rarick won the special election, increasing the Republican majority to 35 seats.^[2]

In October 2020, The Washington Post identified this state election as one of eight whose outcomes could affect partisan balance during post-census redistricting.^[3]

The 67 members of the Senate were elected from single-member districts via first-past-the-post voting for two-year terms. Contested nominations of recognized major parties (DFL, Grassroots-Legalize Cannabis, Legal Marijuana Now, and Republican) for each district were determined by an open primary election. Minor party candidates were nominated by petition. Write-in candidates must have filed a request with the secretary of state's office for votes for them to be counted. The filing period was from May 19 to June 2, 2020.^[4]

A primary election was held on August 11 in 16 districts to nominate Republican and DFL candidates. Four Republican nominations and 13 DFL nominations were contested. Nine incumbents were opposed for their party's nomination. DFL incumbents Erik Simonson in District 7 and Jeff Hayden in District 62 were not renominated.^[9][10]

On November 18, 2020, longtime DFL senators Thomas M. Bakk and David Tomassoni announced they would be leaving the DFL party and form their own "Independent Caucus" in the state senate.^[18] Majority Leader Paul Gazelka welcomed the move and promised to give both senators chairmanships on "prominent committees". This changes the senate composition to 34 Republicans, 31 Democrats, and two independents.

• 2020 Minnesota House of Representatives election
• 2020 Minnesota elections
• 2018 Minnesota gubernatorial election