| Election Name: | 2013 New Jersey State Senate election |
| Country: | New Jersey |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2011 New Jersey State Senate election |
| Previous Year: | 2011 |
| Next Election: | 2017 New Jersey State Senate election |
| Next Year: | 2017 |
| Seats For Election: | All 40 seats in the New Jersey Senate |
| Majority Seats: | 21 |
| Election Date: | November 5, 2013 |
| Turnout: | 34.4%[1] |
| Image1: | File:Senate President Stephen M. Sweeney (cropped).jpg |
| Leader1: | Steve Sweeney |
| Party1: | Democratic Party (United States) |
| Leaders Seat1: | District 3 (West Deptford) |
| Last Election1: | 24 |
| Seats1: | 24 |
| Popular Vote1: | 899,672 |
| Percentage1: | 47.4% |
| Swing1: | 3.7% |
| Leader2: | Thomas Kean Jr. |
| Party2: | Republican Party (United States) |
| Leaders Seat2: | District 21 (Westfield) |
| Last Election2: | 16 |
| Seats2: | 16 |
| Popular Vote2: | 988,214 |
| Percentage2: | 52.1% |
| Swing2: | 3.4% |
| Map Size: | x300px |
| Senate President | |
| Before Election: | Stephen M. Sweeney |
| Before Party: | Democratic Party (United States) |
| After Election: | Stephen M. Sweeney |
| After Party: | Democratic Party (United States) |
The 2013 New Jersey State Senate election coincided with Chris Christie's landslide re-election to a second term as Governor of New Jersey.
2013 was an election of remarkable stability in the Senate, as just one seat (that of gubernatorial nominee Buono) failed to return its incumbent to office. As a corollary, no seats changed party for the second consecutive election. This was the last time that the party that won the popular vote did not win the most seats.
| Contents Incumbents not running • Summary of results By District: 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 • 29 • 30 • 31 • 32 • 33 • 34 • 35 • 36 • 37 • 38 • 39 • 40 |
| 24 | 16 | |
| Democratic | Republican |
| Parties | Seats | Popular Vote | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| align=center | 2011 | align=center | 2013 | align=center | +/- | align=center | Strength | align=center | Vote | align=center | % | align=center | Change | |||
| Democratic | align=right | 24 | align=right | 24 | align=right | align=right | 60% | align=right | 899,672 | align=right | 47.4% | align=right | 0.0% | |||
| Republican | align=right | 16 | align=right | 16 | align=right | align=right | 40% | align=right | 988,214 | align=right | 52.1% | align=right | 0.0% | |||
| Libertarian | align=right | 0 | align=right | 0 | align=right | align=right | 0% | align=right | 1,014 | align=right | 0.1% | align=right | 0.0% | |||
| Independent | align=right | 0 | align=right | 0 | align=right | align=right | 0% | align=right | 8,924 | align=right | 0.5% | align=right | 0.0% | |||
| align=center colspan="2" | Total | align=center | 40 | align=center | 40 | align=center | 0 | align=center | 100.0% | align=center | 1,898,155 | align=center | 100.0% | align=center | - |
Seats where the margin of victory was under 10%: