The 2018 New York State Senate elections were held on November 6, 2018, to elect representatives from all 63 State Senate districts in the U.S. state of New York. Primary elections were held on September 13, 2018.

In April 2018, The Wall Street Journal described the state senate as the "last bastion of power" of the Republican Party in the State of New York. The coalition of Republicans and members of the Independent Democratic Conference collapsed in 2018, with 7 of the 8 IDC members returning to the Democratic Caucus. Democrat Simcha Felder, however, continued to caucus with the Republicans, giving them control of the chamber with only 31 seats. On Election Day, Democrats gained control of the chamber from the Republicans by picking up eight seats.

The following day, The New York Times wrote that the Democrats had "decisively evict[ed] Republicans from running the State Senate, which they [had] controlled for all but three years since World War II". Enrolled Democrats won 40 of the chamber's 63 seats, including all but one seat in New York City and six of the nine seats on Long Island, the latter of which had been under total Republican control since the early 1970s. Brooklyn Senator Simcha Felder, a Democrat who had previously caucused with the Republicans, sought to rejoin the Senate Democratic Conference, but was turned down in December 2018; he was later accepted into the Conference on July 1, 2019.

The Democrats' election victories made possible the January 2019 election of Andrea Stewart-Cousins as the first female Majority Leader and Temporary President in the chamber's history.

Party composition +AffiliationParty (Shading indicates majority caucus)TotalDemocraticRepublicanMainline CaucusSFEnd 2017-2018 session3113163Begin 2019-2020 session3912363Latest voting share

The vote totals for each party were: Party Votes Percentage Swing Democratic 3,242,586 55.98% 4.48% Republican 1,926,123 33.25% 3.27% Conservative 253,452 4.38% 0.69% Independence 155,542 2.69% 0.38% Working Families 143,776 2.48% 0.40% Women's Equality 33,835 0.58% 0.11% Reform 25,362 0.44% 0.12% Green 10,539 0.18% 0.36% Stop de Blasio 415 0.01% New Upstate Jobs 347 0.01% New Tax Revolt 278 0.00% 0.02%

Results DistrictIncumbent PartyElected Senator Party 1 Kenneth LaValle Rep Kenneth LaValle Rep 2 John J. Flanagan Rep John J. Flanagan Rep 3 Thomas Croci Rep Monica Martinez Dem 4 Phil Boyle Rep Phil Boyle Rep 5 Carl L. Marcellino Rep Jim Gaughran Dem 6 Kemp Hannon Rep Kevin Thomas Dem 7 Elaine Phillips Rep Anna Kaplan Dem 8 John Brooks Dem John Brooks Dem 9 Todd Kaminsky Dem Todd Kaminsky Dem 10 James Sanders Jr. Dem James Sanders Jr. Dem 11 Tony Avella Dem John Liu Dem 12 Michael Gianaris Dem Michael Gianaris Dem 13 Jose Peralta Dem Jessica Ramos Dem 14 Leroy Comrie Dem Leroy Comrie Dem 15 Joseph Addabbo Jr. Dem Joseph Addabbo Jr. Dem 16 Toby Ann Stavisky Dem Toby Ann Stavisky Dem 17 Simcha Felder Dem Simcha Felder Dem 18 Martin Malave Dilan Dem Julia Salazar Dem 19 Roxanne Persaud Dem Roxanne Persaud Dem 20 Jesse Hamilton Dem Zellnor Myrie Dem 21 Kevin Parker Dem Kevin Parker Dem 22 Martin Golden Rep Andrew Gounardes Dem 23 Diane Savino Dem Diane Savino Dem 24 Andrew Lanza Rep Andrew Lanza Rep 25 Velmanette Montgomery Dem Velmanette Montgomery Dem 26 Brian P. Kavanagh Dem Brian P. Kavanagh Dem 27 Brad Hoylman Dem Brad Hoylman Dem 28 Liz Krueger Dem Liz Krueger Dem 29 Jose M. Serrano Dem Jose M. Serrano Dem 30 Brian Benjamin Dem Brian Benjamin Dem 31 Marisol Alcantara Dem Robert Jackson Dem 32 Luis R. Sepúlveda Dem Luis R. Sepúlveda Dem 33 Gustavo Rivera Dem Gustavo Rivera Dem 34 Jeffrey D. Klein Dem Alessandra Biaggi Dem 35 Andrea Stewart-Cousins Dem Andrea Stewart-Cousins Dem 36 Jamaal Bailey Dem Jamaal Bailey Dem 37 Shelley Mayer Dem Shelley Mayer Dem 38 David Carlucci Dem David Carlucci Dem 39 William J. Larkin Jr. Rep James Skoufis Dem 40 Terrence Murphy Rep Peter Harckham Dem 41 Sue Serino Rep Sue Serino Rep 42 John Bonacic Rep Jen Metzger Dem 43 Kathy Marchione Rep Daphne Jordan Rep 44 Neil Breslin Dem Neil Breslin Dem 45 Betty Little Rep Betty Little Rep 46 George A. Amedore Jr. Rep George A. Amedore Jr. Rep 47 Joseph Griffo Rep Joseph Griffo Rep 48 Patty Ritchie Rep Patty Ritchie Rep 49 Jim Tedisco Rep Jim Tedisco Rep 50 John DeFrancisco Rep Bob AntonacciRep 51 James Seward Rep James Seward Rep 52 Fred Akshar Rep Fred Akshar Rep 53 David Valesky Dem Rachel May Dem 54 Pam Helming Rep Pam Helming Rep 55 Richard Funke Rep Richard Funke Rep 56 Joseph Robach Rep Joseph Robach Rep 57 Catharine Young Rep Catharine Young Rep 58 Tom O'Mara Rep Tom O'Mara Rep 59 Patrick Gallivan Rep Patrick Gallivan Rep 60 Chris Jacobs Rep Chris Jacobs Rep 61 Michael Ranzenhofer Rep Michael Ranzenhofer Rep 62 Robert Ortt Rep Robert Ortt Rep 63 Timothy Kennedy Dem Timothy Kennedy Dem Sources:

Retiring incumbents Five incumbent Republican senators did not seek re-election in 2018. They were: Thomas Croci (R), District 3 William J. Larkin Jr. (R), District 39 John Bonacic (R), District 42 Kathy Marchione (R), District 43 John A. DeFrancisco (R), District 50

Incumbents defeated In primary Seven incumbent senators (all Democrats) ran for re-election, but were defeated in the September 13 primaries. They were:

Tony Avella (D-District 11) Jose Peralta (D-District 13) Martin Malave Dilan (D-District 18) Jesse Hamilton (D-District 20) Marisol Alcantara (D-District 31) Jeffrey D. Klein (D-District 34) David Valesky (D-District 53)

With the exception of Sen. Dilan, all seven had been members of the Independent Democratic Conference.

In general election The following Republican incumbents were defeated on election day:

Carl L. Marcellino (R-District 5) Kemp Hannon (R-District 6) Elaine Phillips (R-District 7) Martin Golden (R-District 22) Terrence Murphy (R-District 40)

The six Democratic members of the IDC who were defeated in the September primaries (Sens. Avella, Peralta, Hamilton, Alcantara, Klein, and Valesky) were also on the ballot in November, on either the Independence Party line, the Women's Equality Party line, or both (Sen. Peralta also received votes on the Reform Party line). None of the six was re-elected.

Predictions SourceRankingAs of Governing | October 8, 2018

Detailed results

District 1 • District 2 • District 3 • District 4 • District 5 • District 6 • District 7 • District 8 • District 9 • District 10 • District 11 • District 12 • District 13 • District 14 • District 15 • District 16 • District 17 • District 18 • District 19 • District 20 • District 21 • District 22 • District 23 • District 24 • District 25 • District 26 • District 27 • District 28 • District 29 • District 30 • District 31 • District 32 • District 33 • District 34 • District 35 • District 36 • District 37 • District 38 • District 39 • District 40 • District 41 • District 42 • District 43 • District 44 • District 45 • District 46 • District 47 • District 48 • District 49 • District 50 • District 51 • District 52 • District 53 • District 54 • District 55 • District 56 • District 57 • District 58 • District 59 • District 60 • District 61 • District 62 • District 63__NOTOC__ The New York State Board of Elections only publishes results for contested primary elections.

Sources:

District 1

District 2

District 3 The 3rd district is located on Long Island and includes Medford, Ronkonkoma, and Sayville. Republican Thomas Croci had represented this district since 2015. Croci did not run for reelection.

District 4

District 5

District 6 In an unexpected upset, Democratic challenger Kevin Thomas defeated Republican incumbent Kemp Hannon.

District 7

District 8

District 9 Democrat Todd Kaminsky was first elected in a 2016 special election.

Reform primary

General election

District 10

District 11 Democratic primary Tony Avella, incumbent John Liu, former New York City Comptroller

Republican primary

General election

District 12 Reform primary

General election

District 13 Democratic primary Jose Peralta, incumbent Jessica Ramos, community activist

General election

District 14

District 15 Republican primary

Reform primary

General election

District 16

District 17 Democratic primary Simcha Felder, incumbent Blake Morris, attorney

General election

District 18 Democratic primary Martin Malave Dilan, incumbent Julia Salazar, political activist

General election

District 19

District 20 Democratic primary Jesse Hamilton, incumbent Zellnor Myrie, lawyer and former legislative director in New York City Council

General election

District 21

District 22 Democratic challenger Andrew Gounardes defeated Ross Barkan in the Democratic primary and narrowly defeated Golden in the general election.

Democratic primary Ross Barkan, journalist Andrew Gounardes, 2012 Democratic nominee for NY-SD22

General election

District 23 Democratic primary Jasmine Robinson, legal secretary Diane Savino, incumbent Brandon Stradford

Reform primary

General election

District 24

District 25

District 26 Reform primary

General election

District 27

District 28 Independence primary

General election

District 29

District 30

District 31 Democratic primary Marisol Alcantara, incumbent Robert Jackson, former New York City councilman Thomas Leon Tirso Santiago Pina

General election

District 32 Democrat Luis Sepúlveda had represented this district since winning a special election in April 2018.

District 33

District 34 Democratic primary Alessandra Biaggi, Deputy National Operations Director for Hillary Clinton's 2016 presidential campaign Jeffrey D. Klein, incumbent

General election

District 35 Democratic primary Virginia Perez Andrea Stewart-Cousins, incumbent

General election

District 36

District 37 Democrat Shelley Mayer had represented this district since winning a special election in April 2018.

District 38 Democrat David Carlucci, a former member of the Independent Democratic Conference (IDC), was first elected in 2010. Like other former IDC members, Carlucci received a Democratic primary challenge in 2018. After defeating Julie Goldberg in the primary, Carlucci turned back Republican Scott Vanderhoef in the general election.

Democratic primary David Carlucci, incumbent Julie Goldberg, school librarian

General election

District 39 Republican Sen. William J. Larkin Jr. did not seek re-election.

Reform primary

General election

District 40 Democratic primary

General election

District 41

District 42 Republican John Bonacic, who had represented this district since 1999, did not seek re-election, and was succeeded by Democrat Jen Metzger.

Democratic primary Pramilla Malick, 2016 Democratic nominee for NYSD-42 Jen Metzger, Rosendale town councilwoman

Reform primary

General election

District 43 Republican Kathy Marchione, who had represented this district since 2013, did not seek re-election, and was succeeded by fellow Republican Daphne Jordan.

District 44

District 45

District 46

District 47

District 48

District 49 Reform primary

General election

District 50 Republican John DeFrancisco had represented this district since 1993 and did not seek re-election. As of November 7, 2018, Republican Bob Antonacci led Democrat John Mannion by 2,829 votes and declared victory in the race, although absentee ballots remained to be counted. On November 21, 2018, elections officials confirmed Antonacci's victory.

District 51

District 52

District 53 Democratic primary Rachel May, board member of OCRRA and former college professor David Valesky, incumbent

General election

District 54

District 55

District 56

District 57

District 58 Democratic primary Amanda Kirchgessner, community activist Michael Lausell, Schuyler County legislator

General election

District 59

District 60

District 61

District 62

District 63 Democratic primary Timothy M. Kennedy (incumbent) Shaqurah Zachery, teacher

General election

Aftermath