| CONGRESS | SENATOR | TERM BEGAN | TERM ENDED | COMMENTS |
|---|---|---|---|---|
| Class 1 | ||||
| 1st | Jonathan Elmer (PRO-ADMIN) | Mar. 4, 1789 | Mar. 3, 1791 | |
| 2nd-5th | John Rutherfurd (PRO-ADMIN, F) | Mar. 4, 1791 | Nov. 26, 1798 | Resigned |
| 5th | Franklin Davenport (F) | Dec. 5, 1798 | Mar. 3, 1799 | Appointed |
| 6th | James Schureman (F) | Mar. 4, 1799 | Feb. 16, 1801 | Resigned |
| 6th | Aaron Ogden (F) | Feb. 28, 1801 | Mar. 3, 1803 | |
| 8th-10th | John Condit (R) | Sept. 1, 18031 | Mar. 3, 1809 | Appointed, then elected |
| 11th-13th | John Lambert (R) | Mar. 4, 1809 | Mar. 3, 1815 | |
| 14th-16th | James J. Wilson (R) | Mar. 4, 1815 | Jan. 8, 1821 | Resigned |
| 16th-18th | Samuel L. Southard (R) | Jan. 26, 1821 | Mar. 3, 18232 | Appointed, then elected; resigned |
| 18th-19th | Joseph McIlvaine (ADAMS-CLAY R, ADAMS) | Nov. 12, 1823 | Aug. 19, 1826 | Died |
| 19th-20th | Ephraim Bateman (ADAMS) | Nov. 9, 1826 | Jan. 12, 1829 | Resigned |
| 20th-22nd | Mahlon Dickerson (J) | Jan. 30, 1829 | Mar. 3, 1833 | |
| 23rd-27th | Samuel L. Southard (AJ, W) | Mar. 4, 1833 | Jun. 26, 1842 | Died |
| 27th-31st | William L. Dayton (W) | Jul. 2, 1842 | Mar. 3, 1851 | Appointed, then elected |
| 32nd-33rd | Robert F. Stockton (D) | Mar. 4, 1851 | Jan. 10, 1853 | Resigned |
| 33rd-37th | John R. Thomson (D) | Mar. 4, 1853 | Sept. 12, 1862 | Died |
| 37th | Richard S. Field (R) | Nov. 21, 1862 | Jan. 14, 1863 | Appointed |
| 37th | James W. Wall (D) | Jan. 14, 1863 | Mar. 3, 1863 | |
| 38th-39th | William Wright (D) | Mar. 4, 1863 | Nov. 1, 1866 | Died |
| 39th-40th | Frederick T. Frelinghuysen (R) | Nov. 12, 1866 | Mar. 3, 1869 | Appointed, then elected |
| 41st-43rd | John P. Stockton (D) | Mar. 4, 1869 | Mar. 3, 1875 | |
| 44th-46th | Theodore F. Randolph (D) | Mar. 4, 1875 | Mar. 3, 1881 | |
| 47th-49th | William J. Sewell (R) | Mar. 4, 1881 | Mar. 3, 1887 | |
| 50th-52nd | Rufus Blodgett (D) | Mar. 4, 1887 | Mar. 3, 1893 | |
| 53rd-55th | James Smith Jr. (D) | Mar. 4, 1893 | Mar. 3, 1899 | |
| 56th-61st | John Kean (R) | Mar. 4, 1899 | Mar. 3, 1911 | |
| 62nd-64th | James E. Martine (D) | Mar. 4, 1911 | Mar. 3, 1917 | |
| 65th-67th | Joseph S. Frelinghuysen (R) | Mar. 4, 1917 | Mar. 3, 1923 | |
| 68th-70th | Edward I. Edwards (D) | Mar. 4, 1923 | Mar. 3, 1929 | |
| 71st-73rd | Hamilton F. Kean (R) | Mar. 4, 1929 | Mar. 3, 1935 | |
| 74th-75th | A. Harry Moore (D) | Jan. 3, 1935 | Jan. 18, 1938 | Resigned |
| 75th | John G. Milton (D) | Jan. 18, 1938 | Nov. 8, 1938 | Appointed |
| 75th-78th | W. Warren Barbour (R) | Nov. 9, 1938 | Nov. 22, 1943 | Died |
| 78th | Arthur Walsh (D) | Nov. 26, 1943 | Dec. 6, 1944 | Appointed |
| 78th-85th | Howard A. Smith (R) | Dec. 7, 1944 | Jan. 3, 1959 | |
| 86th-97th | Harrison A. Williams Jr. (D) | Jan. 3, 1959 | Mar. 11, 1982 | Resigned |
| 97th | Nicholas F. Brady (R) | Apr. 12, 1982 | Dec. 27, 1982 | Appointed, then resigned |
| 98th-106th | Frank R. Launtenberg3 (D) | Dec. 27, 1982 | Jan. 3, 2001 | |
| 107th-109th | Jon S. Corzine (D) | Jan. 3, 2001 | Jan. 17, 2006 | Resigned |
| 109th-118th | Robert Menendez (D) | Jan. 17, 2006 | Aug. 20, 2024 | Appointed, then elected. Resigned. |
| 118th- | George S. Helmy (D) | Aug. 23, 2024 | Present | Appointed |
| Class 2 | ||||
| 1st | William Paterson (PRO-ADMIN) | Mar. 4, 1789 | Nov. 13, 1790 | Resigned |
| 1st-2nd | Philemon Dickinson (PRO-ADMIN) | Nov. 23, 1790 | Mar. 3, 1793 | |
| 3rd-4th | Frederick Frelinghuysen (PRO-ADMIN, F) | Mar. 4, 1793 | Nov. 12, 1796 | Resigned |
| 4th-5th | Richard Stockton (R) | Nov. 12, 1796 | Mar. 3, 1799 | |
| 6th-8th | Jonathan Dayton (F) | Mar. 4, 1799 | Mar. 3, 1805 | |
| 9th-11th | Aaron Kitchell (R) | Mar. 4, 1805 | Mar. 12, 1809 | Resigned |
| 11th-14th | John Condit (R) | Mar. 21, 1809 | Mar. 3, 1817 | Appointed, then elected |
| 15th-20th | Mahlon Dickerson (R, CR, J) | Mar. 4, 1817 | Jan. 30, 1829 | Resigned |
| 21st-23rd | Theodore Frelinghuysen (AJ) | Mar. 4, 1829 | Mar. 3, 1835 | |
| 24th-26th | Garret D. Wall (J, D) | Mar. 4, 1835 | Mar. 3, 1841 | |
| 27th-32nd | Jacob W. Miller (W) | Mar. 4, 1841 | Mar. 3, 1853 | |
| 33rd-35th | William Wright (D) | Mar. 4, 1853 | Mar. 3, 1859 | |
| 36th-38th | John C. Ten Ecyk (R) | Mar. 4, 1859 | Mar. 3, 1865 | |
| 39th | John P. Stockton4 (D) | Mar. 15, 1865 | Mar. 27, 1866 | |
| 39th-41st | Alexander G. Cattell5 (R) | Sept. 19, 1866 | Mar. 3, 1871 | |
| 42nd-44th | Frederick T. Frelinghuysen (R) | Mar. 4, 1871 | Mar. 3, 1877 | |
| 45th-53rd | John R. McPherson (D) | Mar. 4, 1877 | Mar. 3, 1895 | |
| 54th-57th | William J. Sewell (R) | Mar. 4, 1895 | Dec. 27, 1901 | Died |
| 57th-59th | John F. Dryden (R) | Jan. 29, 1902 | Mar. 3, 1907 | |
| 60th-62nd | Frank O. Briggs (R) | Mar. 4, 1907 | Mar. 3, 1913 | |
| 63rd-65th | William Hughes (D) | Mar. 4, 1913 | Jan. 30, 1918 | Died |
| 65th | David Baird (R) | Feb. 23, 1918 | Mar. 3, 1919 | Appointed, then elected |
| 66th-71st | Walter E. Edge (R) | Mar. 4, 1919 | Nov. 21, 1929 | Resigned |
| 71st | David Baird Jr. (R) | Nov. 30, 1929 | Dec. 2, 1930 | Appointed |
| 71st-72nd | Dwight W. Morrow (R) | Dec. 3, 1930 | Oct. 5, 1931 | Died |
| 72nd-74th | W. Warren Barbour (R) | Dec. 1, 1931 | Jan. 3, 1937 | Appointed, then elected |
| 75th-77th | William H. Smathers6 (D) | Apr. 15, 1937 | Jan. 3, 1943 | |
| 78th-80th | Albert W. Hawkes (R) | Jan. 3, 1943 | Jan. 3, 1949 | |
| 81st-83rd | Robert C. Hendrickson (R) | Jan. 3, 1949 | Jan. 3, 1955 | |
| 84th-95th | Clifford P. Case (R) | Jan. 3, 1955 | Jan. 3, 1979 | |
| 96th-104th | William W. Bradley (D) | Jan. 3, 1979 | Jan. 3, 1997 | |
| 105th-107th | Robert G. Torricelli (D) | Jan. 3, 1997 | Jan. 3, 2003 | |
| 108th-113th | Frank R. Lautenberg (D) | Jan. 3, 2003 | Jun. 3, 2013 | Died |
| 113th | Jeffrey S. Chiesa (R) | Jun. 6, 2013 | Oct. 30, 2013 | Appointed |
| 113th- | Cory A. Booker (D) | Oct. 31, 2013 | Present | |
1. Vacancy from Mar. 3 to Sept. 1, 1803, because of failure of legislature to elect.
2. Appointed by governor to fill vacancy; then elected; resigned to serve as secretary of the navy under President James Monroe.
3. Elected to full term commencing Jan. 3, 1983, and was subsequently appointed by governor, Dec. 27, 1982, to complete the unexpired term of Nicholas F. Brady, ending Jan. 3, 1983.
4. Stockton’s elected was contested, and the Senate declared the seat vacant.
5. Elected to fill unexpired term of John P. Stockton, unseated. Vacancy from Mar. 28 to Sept. 18, 1866.
6. Elected Nov. 3, 1936. Took oath Apr. 15, 1937. Served as a state senator during interim.
