# List of new members of the 113th United States Congress

The 113th United States Congress began on January 3, 2013. There were 12 new senators (eight Democrats, three Republicans, one independent) and 81 new representatives (47 Democrats, 34 Republicans) at the start of its first session. Additionally, five senators (four Democrats, one Republican) and 11 representatives (four Democrats, seven Republicans) took office on various dates in order to fill vacancies during the 113th Congress before it ended on January 3, 2015.
Due to redistricting after the 2010 census, 19 representatives were elected from newly established congressional districts.
The co-presidents of the House Democratic freshman class were Matt Cartwright of Pennsylvania, Joaquin Castro of Texas, John Delaney of Maryland, and Michelle Lujan Grisham of New Mexico, while the president of the House Republican freshman class was Luke Messer of Indiana. Additionally, the Republican's freshmen liaison was Ann Wagner of Missouri.

## Senate
### Took office January 3, 2013

| State | Senator | Seniority | Switched party | Prior background | Birth year |
| Arizona | Jeff Flake (R) | 2nd (90th overall) | No Open seat; replaced Jon Kyl (R) | U.S. House of Representatives | 1962 |
| Connecticut | Chris Murphy (D) | 4th (92nd overall) | Yes Open seat; replaced Joe Lieberman (I) | U.S. House of Representatives Connecticut State Senate Connecticut House of Representatives | 1973 |
| Hawaii | Mazie Hirono (D) | 5th (93rd overall) | No Open seat; replaced Daniel Akaka (D) | U.S. House of Representatives Lieutenant Governor of Hawaii Hawaii House of Representatives | 1947 |
| Indiana | Joe Donnelly (D) | 3rd (91st overall) | Yes Replaced Richard Lugar (R), who was defeated in a primary | U.S. House of Representatives | 1955 |
| Maine | Angus King (I) | 7th (95th overall) | Yes Open seat; replaced Olympia Snowe (R) | Governor of Maine | 1944 |
| Massachusetts | Elizabeth Warren (D) | 10th (98th overall) | Yes Defeated Scott Brown (R) | Special advisor to the CFPB Professor | 1949 |
| Nebraska | Deb Fischer (R) | 11th (99th overall) | Yes Open seat; replaced Ben Nelson (D) | Nebraska Legislature | 1951 |
| New Mexico | Martin Heinrich (D) | 6th (94th overall) | No Open seat; replaced Jeff Bingaman (D) | U.S. House of Representatives Albuquerque City Council | 1971 |
| North Dakota | Heidi Heitkamp (D–NPL) | 12th (100th overall) | No Open seat; replaced Kent Conrad (D–NPL) | North Dakota Attorney General North Dakota Tax Commissioner Dakota Gasification Company | 1955 |
| Texas | Ted Cruz (R) | 9th (97th overall) | No Open seat; replaced Kay Bailey Hutchison (R) | Solicitor General of Texas Policy advisor for President George W. Bush | 1970 |
| Virginia | Tim Kaine (D) | 8th (96th overall) | No Open seat; replaced Jim Webb (D) | Governor of Virginia Lieutenant Governor of Virginia Mayor of Richmond Richmond City Council | 1958 |
| Wisconsin | Tammy Baldwin (D) | 1st (89th overall) | No Open seat; replaced Herb Kohl (D) | U.S. House of Representatives Wisconsin State Assembly Dane County Board of Supervisors Madison Common Council | 1962 |

### Took office during the 113th Congress

| State | Senator | Took office | Switched party | Prior background | Birth year |
| Massachusetts | Mo Cowan (D) | February 1, 2013 | No Appointed; replaced John Kerry (D) | Chief of staff to Governor Deval Patrick | 1969 |
| New Jersey | Jeffrey Chiesa (R) | June 10, 2013 | Yes Appointed; replaced Frank Lautenberg (D) | New Jersey Attorney General Assistant U.S. Attorney | 1965 |
| Massachusetts | Ed Markey (D) | July 16, 2013 | No Open seat; replaced Mo Cowan (D) | U.S. House of Representatives Massachusetts House of Representatives U.S. Army Reserve Specialist | 1946 |
| New Jersey | Cory Booker (D) | October 31, 2013 | Yes Open seat; replaced Jeffrey Chiesa (R) | Mayor of Newark Municipal Council of Newark | 1969 |
| Montana | John Walsh (D) | February 9, 2014 | No Appointed; replaced Max Baucus (D) | Lieutenant Governor of Montana Montana Adjutant General U.S. Army Brigadier General | 1960 |

## House of Representatives
### Took office January 3, 2013

| District | Representative | Switched party | Prior background | Birth year |
| Arizona 1 | Ann Kirkpatrick (D) | New seat | U.S. House of Representatives Arizona House of Representatives | 1950 |
| Arizona 5 | Matt Salmon (R) | No Open seat; replaced Jeff Flake (R) | U.S. House of Representatives Chair of the Arizona Republican Party Arizona Senate | 1958 |
| Arizona 9 | Kyrsten Sinema (D) | New seat | Arizona Senate Arizona House of Representatives | 1976 |
| Arkansas 4 | Tom Cotton (R) | Yes Open seat; replaced Mike Ross (D) | Lawyer U.S. Army Captain | 1977 |
| California 1 | Doug LaMalfa (R) | No Open seat; replaced Wally Herger (R) | California State Senate California State Assembly | 1960 |
| California 2 | Jared Huffman (D) | No Open seat; replaced Lynn Woolsey (D) | California State Assembly Marin Municipal Water District | 1964 |
| California 7 | Ami Bera (D) | Yes Defeated Dan Lungren (R) | CMO for Sacramento County Physician | 1965 |
| California 8 | Paul Cook (R) | No Open seat; replaced Jerry Lewis (R) | California State Assembly Yucca Valley Town Council U.S. Marine Corps Colonel | 1943 |
| California 15 | Eric Swalwell (D) | No Defeated Pete Stark (D) | Dublin City Council Alameda County deputy district attorney | 1980 |
| California 21 | David Valadao (R) | New seat | California State Assembly | 1977 |
| California 26 | Julia Brownley (D) | Yes Open seat; replaced Elton Gallegly (R) | California State Assembly Santa Monica–Malibu School Board | 1952 |
| California 29 | Tony Cárdenas (D) | New seat | Los Angeles City Council California State Assembly | 1963 |
| California 35 | Gloria Negrete McLeod (D) | No Defeated Joe Baca (D) | California State Senate California State Assembly Chaffey College Board | 1941 |
| California 36 | Raul Ruiz (D) | Yes Defeated Mary Bono (R) | Physician | 1971 |
| California 41 | Mark Takano (D) | New seat | Riverside Community College District Board | 1960 |
| California 47 | Alan Lowenthal (D) | New seat | California State Senate California State Assembly Long Beach City Council | 1941 |
| California 51 | Juan Vargas (D) | No Open seat; replaced Bob Filner (D) | California State Senate California State Assembly San Diego City Council | 1961 |
| California 52 | Scott Peters (D) | Yes Defeated Brian Bilbray (R) | President of the San Diego City Council San Diego County deputy attorney | 1958 |
| Connecticut 5 | Elizabeth Esty (D) | No Open seat; replaced Chris Murphy (D) | Connecticut House of Representatives Cheshire Town Council | 1959 |
| Florida 3 | Ted Yoho (R) | No Defeated Cliff Stearns (R) in a primary | Veterinarian | 1955 |
| Florida 6 | Ron DeSantis (R) | New seat | U.S. Navy Judge Advocate General's Corps | 1978 |
| Florida 9 | Alan Grayson (D) | New seat | U.S. House of Representatives | 1958 |
| Florida 18 | Patrick Murphy (D) | Yes Defeated Allen West (R) | Construction executive | 1983 |
| Florida 19 | Trey Radel (R) | No Open seat; replaced Connie Mack IV (R) | Radio talk show host | 1976 |
| Florida 22 | Lois Frankel (D) | New seat | Mayor of West Palm Beach Florida House of Representatives | 1948 |
| Florida 26 | Joe Garcia (D) | Yes Defeated David Rivera (R) | U.S. Department of Energy official Chair of the Florida Public Service Commission | 1963 |
| Georgia 9 | Doug Collins (R) | New seat | Georgia House of Representatives U.S. Air Force Reserve Colonel | 1966 |
| Hawaii 2 | Tulsi Gabbard (D) | No Open seat; replaced Mazie Hirono (D) | Honolulu City Council Hawaii House of Representatives U.S. Army Reserve Lieutenant Colonel | 1981 |
| Illinois 8 | Tammy Duckworth (D) | Yes Defeated Joe Walsh (R) | Assistant Secretary of Veterans Affairs Illinois Director of Veterans' Affairs U.S. Army Lieutenant Colonel | 1968 |
| Illinois 10 | Brad Schneider (D) | Yes Defeated Bob Dold (R) | Businessman | 1961 |
| Illinois 11 | Bill Foster (D) | Yes Defeated Judy Biggert (R) | U.S. House of Representatives Physicist | 1955 |
| Illinois 12 | William Enyart (D) | No Open seat; replaced Jerry Costello (R) | Adjutant General of Illinois U.S. Air Force Major General | 1949 |
| Illinois 13 | Rodney Davis (R) | No Open seat; replaced Tim Johnson (R) | Staffer for U.S. Representative John Shimkus Staffer for Secretary of State George Ryan | 1970 |
| Illinois 17 | Cheri Bustos (D) | Yes Defeated Bobby Schilling (R) | East Moline City Council Healthcare executive | 1961 |
| Indiana 2 | Jackie Walorski (R) | Yes Open seat; replaced Joe Donnelly (D) | Indiana House of Representatives | 1963 |
| Indiana 5 | Susan Brooks (R) | No Open seat; replaced Dan Burton (R) | U.S. Attorney for Southern Indiana | 1960 |
| Indiana 6 | Luke Messer (R) | No Open seat; replaced Mike Pence (R) | Indiana House of Representatives | 1969 |
| Kentucky 6 | Andy Barr (R) | Yes Defeated Ben Chandler (D) | Lawyer | 1973 |
| Maryland 6 | John Delaney (D) | Yes Defeated Roscoe Bartlett (R) | Business owner | 1963 |
| Massachusetts 4 | Joe Kennedy III (D) | No Open seat; replaced Barney Frank (D) | Middlesex County assistant district attorney | 1980 |
| Michigan 5 | Dan Kildee (D) | No Open seat; replaced Dale Kildee (D) | Genesee County Treasurer Genesee County Board of Commissioners | 1958 |
| Michigan 11 | Kerry Bentivolio (R) | No Open seat; replaced Thaddeus McCotter (R) | Educator Michigan National Guard Sergeant First Class | 1951 |
| Minnesota 8 | Rick Nolan (DFL) | Yes Defeated Chip Cravaack (R) | President of the Minnesota World Trade Center U.S. House of Representatives Minnesota House of Representatives | 1943 |
| Missouri 2 | Ann Wagner (R) | No Open seat; replaced Todd Akin (R) | U.S. Ambassador to Luxembourg Co-chair of the Republican National Committee Chair of the Missouri Republican Party | 1962 |
| Montana at-large | Steve Daines (R) | No Open seat; replaced Denny Rehberg (R) | Businessman | 1962 |
| Nevada 1 | Dina Titus (D) | No Open seat; replaced Shelley Berkley (D) | U.S. House of Representatives Nevada Senate Political science professor | 1950 |
| Nevada 4 | Steven Horsford (D) | New seat | Nevada Senate | 1973 |
| New Hampshire 1 | Carol Shea-Porter (D) | Yes Defeated Frank Guinta (R) | U.S. House of Representatives | 1952 |
| New Hampshire 2 | Annie Kuster (D) | Yes Defeated Charles Bass (R) | Attorney | 1956 |
| New Mexico 1 | Michelle Lujan Grisham (D) | No Open seat; replaced Martin Heinrich (D) | New Mexico Secretary of Health New Mexico Secretary of Aging | 1959 |
| New York 6 | Grace Meng (D) | No Open seat; replaced Gary Ackerman (D) | New York State Assembly | 1975 |
| New York 8 | Hakeem Jeffries (D) | No Open seat; replaced Edolphus Towns (D) | New York State Assembly | 1970 |
| New York 18 | Sean Patrick Maloney (D) | Yes Defeated Nan Hayworth (R) | White House Staff Secretary COO of Klodex | 1966 |
| New York 24 | Dan Maffei (D) | Yes Defeated Ann Marie Buerkle (R) | U.S. House of Representatives Congressional staffer | 1968 |
| New York 27 | Chris Collins (R) | Yes Defeated Kathy Hochul (D) | Erie County Executive | 1950 |
| North Carolina 8 | Richard Hudson (R) | Yes Defeated Larry Kissell (D) | Congressional staffer | 1971 |
| North Carolina 9 | Robert Pittenger (R) | No Open seat; replaced Sue Myrick (R) | North Carolina Senate | 1948 |
| North Carolina 11 | Mark Meadows (R) | Yes Open seat; replaced Heath Shuler (D) | Real estate developer | 1959 |
| North Carolina 13 | George Holding (R) | Yes Open seat; replaced Brad Miller (D) | U.S. Attorney for Eastern North Carolina Assistant U.S. Attorney | 1968 |
| North Dakota at-large | Kevin Cramer (R) | No Open seat; replaced Rick Berg (R) | North Dakota Public Service Commission Chair of the North Dakota Republican Party | 1961 |
| Ohio 2 | Brad Wenstrup (R) | No Defeated Jean Schmidt (R) in a primary | Podiatric physician U.S. Army Reserve Colonel | 1958 |
| Ohio 3 | Joyce Beatty (D) | New seat | Senior vice president of Ohio State University Ohio House of Representatives | 1950 |
| Ohio 14 | David Joyce (R) | No Open seat; replaced Steve LaTourette (R) | Geauga County Prosecutor | 1957 |
| Oklahoma 1 | Jim Bridenstine (R) | No Defeated John Sullivan (R) in a primary | U.S. Navy Lieutenant Commander | 1975 |
| Oklahoma 2 | Markwayne Mullin (R) | Yes Open seat; replaced Dan Boren (D) | Plumbing business owner Mixed martial artist | 1977 |
| Pennsylvania 4 | Scott Perry (R) | No Open seat; replaced Todd Platts (R) | Pennsylvania House of Representatives Pennsylvania National Guard Brigadier General | 1962 |
| Pennsylvania 12 | Keith Rothfus (R) | Yes Defeated Mark Critz (D) | Director of the OFBCI U.S. Department of Homeland Security official | 1962 |
| Pennsylvania 17 | Matt Cartwright (D) | No Defeated Tim Holden (D) in a primary | Lawyer | 1961 |
| South Carolina 7 | Tom Rice (R) | New seat | Horry County Council | 1957 |
| Texas 14 | Randy Weber (R) | No Open seat; replaced Ron Paul (R) | Texas House of Representatives Pearland City Council | 1953 |
| Texas 16 | Beto O'Rourke (D) | No Defeated Silvestre Reyes (D) in a primary | El Paso City Council | 1972 |
| Texas 20 | Joaquin Castro (D) | No Open seat; replaced Charlie Gonzalez (D) | Texas House of Representatives | 1974 |
| Texas 23 | Pete Gallego (D) | Yes Defeated Quico Canseco (R) | Texas House of Representatives | 1961 |
| Texas 25 | Roger Williams (R) | New seat | Secretary of State of Texas Car dealership owner College baseball coach | 1949 |
| Texas 33 | Marc Veasey (D) | New seat | Texas House of Representatives | 1971 |
| Texas 34 | Filemon Vela Jr. (D) | New seat | Civil attorney | 1963 |
| Texas 36 | Steve Stockman (R) | New seat | U.S. House of Representatives | 1956 |
| Utah 2 | Chris Stewart (R) | New seat | Business executive U.S. Air Force Major | 1960 |
| Washington 6 | Derek Kilmer (D) | No Open seat; replaced Norm Dicks (D) | Washington State Senate Washington House of Representatives | 1974 |
| Washington 10 | Denny Heck (D) | New seat | Washington House of Representatives | 1952 |
| Wisconsin 2 | Mark Pocan (D) | No Open seat; replaced Tammy Baldwin (D) | Wisconsin State Assembly Dane County Board of Supervisors | 1964 |

### Took office during the 113th Congress

| District | Representative | Took office | Switched party | Prior background | Birth year |
| Illinois 2 | Robin Kelly (D) | April 11, 2013 | No Succeeded Jesse Jackson Jr. (D) | Chief of staff for Treasurer Alexi Giannoulias Illinois House of Representatives | 1956 |
| South Carolina 1 | Mark Sanford (R) | May 15, 2013 | No Succeeded Tim Scott (R) | Governor of South Carolina U.S. House of Representatives U.S. Air Force Captain | 1960 |
| Missouri 8 | Jason Smith (R) | June 4, 2013 | No Succeeded Jo Ann Emerson (R) | Missouri House of Representatives | 1980 |
| Louisiana 5 | Vance McAllister (R) | November 16, 2013 | No Succeeded Rodney Alexander (R) | Business owner Louisiana National Guard | 1974 |
| Massachusetts 5 | Katherine Clark (D) | December 12, 2013 | No Succeeded Ed Markey (D) | Massachusetts Senate Massachusetts House of Representatives Melrose School Board | 1963 |
| Alabama 1 | Bradley Byrne (R) | January 8, 2014 | No Succeeded Jo Bonner (R) | Chancellor of the Alabama Community College System Alabama Senate Alabama State Board of Education | 1955 |
| Florida 13 | David Jolly (R) | March 13, 2014 | No Succeeded Bill Young (R) | Staffer for U.S. Representative Bill Young | 1972 |
| Florida 19 | Curt Clawson (R) | June 25, 2014 | No Succeeded Trey Radel (R) | Manufacturing businessman College basketball player | 1959 |
| New Jersey 1 | Donald Norcross (D) | November 12, 2014 | No Succeeded Rob Andrews (D) | New Jersey Senate New Jersey General Assembly | 1958 |
| North Carolina 12 | Alma Adams (D) | November 12, 2014 | No Succeeded Mel Watt (D) | North Carolina House of Representatives Greensboro City Council | 1946 |
| Virginia 7 | Dave Brat (R) | November 12, 2014 | No Succeeded Eric Cantor (R) | Professor | 1964 |