2017 New Jersey Senate election

2017 New Jersey State Senate election

← 2013 November 7, 2017 2021 →

All 40 seats in the New Jersey Senate
21 seats needed for a majority
  Majority party Minority party
 
Leader Steve Sweeney Thomas Kean Jr.
Party Democratic Republican
Leader since January 12, 2010 January 8, 2008
Leader's seat 3rd district (West Deptford) 21st district (Westfield)
Last election 24 16
Seats won 25 15
Seat change Increase 1 Decrease 1
Popular vote 1,185,420 802,418
Percentage 59.5% 40.3%
Swing Increase 12.1% Decrease 11.8%

Results by district
     Democratic hold      Democratic gain
     Republican hold      Republican gain

Senate President before election

Steve Sweeney
Democratic

Elected Senate President

Steve Sweeney
Democratic

The 2017 New Jersey State Senate elections were held on November 7, 2017, to elect senators for all 40 legislative districts across New Jersey. These elections coincided with the election of Governor Phil Murphy. The winners of this election would serve in the 218th New Jersey Legislature, with seats apportioned based on the 2010 United States census. The Democratic Party grew its majority in the Senate, with incumbent Senate President Steve Sweeney re-elected to the top leadership post. Republican Thomas Kean, Jr. continued to lead his party as minority leader. This was the first state Senate election cycle in 10 years where any party flipped a Senate seat.

Democrats briefly held 26 seats from January through December 2019 following the party switch of Dawn Addiego, resulting in the Democrats controlling the highest percentage of seats since 1977. However, a 2019 special election in District 1 reduced the Democrats back to 25 seats.

Contents
Summary of resultsIncumbents not running
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