Member
Party
Term
Congress
Electoral history
John Vining (Dover )
Pro- Administration
March 4, 1789 – March 3, 1793
1st 2nd
Elected in 1789 .Re-elected in 1790 . Retired.
John Patten (Dover )
Anti- Administration
March 4, 1793 – February 14, 1794
3rd
Elected in 1792 . Lost election contest.
Henry Latimer (Newport )
Pro- Administration
February 14, 1794 – February 7, 1795
3rd
Won election contest. Lost re-election.
John Patten (Dover )
Democratic- Republican
March 4, 1795 – March 3, 1797
4th
Elected in 1794 . Retired.
James A. Bayard (Wilmington )
Federalist
March 4, 1797 – March 3, 1803
5th 6th 7th
Elected in 1796 .Re-elected in 1798 .Re-elected in 1800 . Lost re-election.
Caesar Augustus Rodney (Wilmington )
Democratic- Republican
March 4, 1803 – March 3, 1805
8th
Elected in 1802 . Lost re-election.
Vacant
March 4, 1805 – October 1, 1805
9th
James A. Bayard was elected in 1804 but declined to serve, having also been elected U.S. senator.
James M. Broom (Wilmington )
Federalist
October 1, 1805 – October 6, 1807
9th 10th
Elected October 1, 1805 to finish Bayard's term and seated December 2, 1805.Re-elected in 1806 , but declined the seat.
Nicholas Van Dyke (New Castle )
Federalist
October 6, 1807 – March 3, 1811
10th 11th
Elected to finish Broom's term .Re-elected in 1808 . Retired.
Henry M. Ridgely (Dover )
Federalist
March 4, 1811 – March 3, 1815
12th 13th
Elected in 1810 .Re-elected in 1812 . Retired.
Thomas Clayton (Dover )
Federalist
March 4, 1815 – March 3, 1817
14th
Elected in 1814 . Lost re-election.
Louis McLane (Wilmington )
Federalist [ a]
March 4, 1817 – March 3, 1825
15th 16th 17th 18th 19th
Elected in 1816 .Re-elected in 1818 .Re-elected in 1820 .Re-elected in 1822 .Re-elected in 1824 .Re-elected in 1826 but declined to serve having been elected U.S. senator .
Jacksonian
March 4, 1825 – March 3, 1827
Vacant
March 3, 1827 – October 2, 1827
20th
Kensey Johns Jr. (New Castle )
Anti- Jacksonian
October 2, 1827 – March 3, 1831
20th 21st
Elected October 2, 1827 to finish McLane's term and seated December 3, 1827.Re-elected in 1828 . Retired.
John J. Milligan (Wilmington )
Anti- Jacksonian
March 4, 1831 – March 3, 1837
22nd 23rd 24th 25th
Elected in 1830 .Re-elected in 1832 .Re-elected in 1834 .Re-elected in 1836 . Lost re-election.
Whig
March 4, 1837 – March 3, 1839
Thomas Robinson Jr. (Georgetown )
Democratic
March 4, 1839 – March 3, 1841
26th
Elected in 1838 . Lost re-election.
George B. Rodney (New Castle )
Whig
March 4, 1841 – March 3, 1845
27th 28th
Elected in 1840 .Re-elected in 1842 . Retired.
John W. Houston (Georgetown )
Whig
March 4, 1845 – March 3, 1851
29th 30th 31st
Elected in 1844 .Re-elected in 1846 .Re-elected in 1848 . Retired.
George R. Riddle (Wilmington )
Democratic
March 4, 1851 – March 3, 1855
32nd 33rd
Elected in 1850 .Re-elected in 1852 . Lost re-election.
Elisha D. Cullen (Georgetown )
Know Nothing
March 4, 1855 – March 3, 1857
34th
Elected in 1854 . Lost re-election.
William G. Whiteley (New Castle )
Democratic
March 4, 1857 – March 3, 1861
35th 36th
Elected in 1856 .Re-elected in 1858 . Retired.
George P. Fisher (Dover )
Union
March 4, 1861 – March 3, 1863
37th
Elected in 1860 . Lost re-election.
William Temple (Smyrna )
Democratic
March 4, 1863 – May 28, 1863
38th
Elected in 1862 . Died.
Vacant
May 28, 1863 – December 7, 1863
38th
Nathaniel B. Smithers (Dover )
Union
December 7, 1863 – March 3, 1865
38th
Elected to finish Temple's term . Lost re-election.
John A. Nicholson (Dover )
Democratic
March 4, 1865 – March 3, 1869
39th 40th
Elected in 1864 .Re-elected in 1866 . Retired.
Benjamin T. Biggs (Summit Bridge )
Democratic
March 4, 1869 – March 3, 1873
41st 42nd
Elected in 1868 .Re-elected in 1870 . Retired.
James R. Lofland (Milford )
Republican
March 4, 1873 – March 3, 1875
43rd
Elected in 1872 . Lost re-election.
James Williams (Kenton )
Democratic
March 4, 1875 – March 3, 1879
44th 45th
Elected in 1874 .Re-elected in 1876 . Retired.
Edward L. Martin (Seaford )
Democratic
March 4, 1879 – March 3, 1883
46th 47th
Elected in 1878 .Re-elected in 1880 . Retired.
Charles B. Lore (Wilmington )
Democratic
March 4, 1883 – March 3, 1887
48th 49th
Elected in 1882 .Re-elected in 1884 . Retired.
John B. Penington (Dover )
Democratic
March 4, 1887 – March 3, 1891
50th 51st
Elected in 1886 .Re-elected in 1888 . Retired.
John W. Causey (Milford )
Democratic
March 4, 1891 – March 3, 1895
52nd 53rd
Elected in 1890 .Re-elected in 1892 . Retired.
Jonathan S. Willis (Milford )
Republican
March 4, 1895 – March 3, 1897
54th
Elected in 1894 . Lost re-election.
L. Irving Handy (Newark )
Democratic
March 4, 1897 – March 3, 1899
55th
Elected in 1896 . Lost re-election.
John H. Hoffecker (Smyrna )
Republican
March 4, 1899 – June 16, 1900
56th
Elected in 1898 . Died.
Vacant
June 16, 1900 – November 6, 1900
Walter O. Hoffecker (Smyrna )
Republican
November 6, 1900 – March 3, 1901
Elected to finish his father's term . Retired.
L. Heisler Ball (Faulkland )
Republican
March 4, 1901 – March 3, 1903
57th
Elected in 1900 . Retired to run for U.S. senator .
Henry A. Houston (Millsboro )
Democratic
March 4, 1903 – March 3, 1905
58th
Elected in 1902 . Retired.
Hiram R. Burton (Lewes )
Republican
March 4, 1905 – March 3, 1909
59th 60th
Elected in 1904 .Re-elected in 1906 . Lost renomination.
William H. Heald (Wilmington )
Republican
March 4, 1909 – March 3, 1913
61st 62nd
Elected in 1908 .Re-elected in 1910 . Retired.
Franklin Brockson (Clayton )
Democratic
March 4, 1913 – March 3, 1915
63rd
Elected in 1912 . Lost re-election.
Thomas W. Miller (Wilmington )
Republican
March 4, 1915 – March 3, 1917
64th
Elected in 1914 . Lost re-election.
Albert F. Polk (Georgetown )
Democratic
March 4, 1917 – March 3, 1919
65th
Elected in 1916 . Lost re-election.
Caleb R. Layton (Georgetown )
Republican
March 4, 1919 – March 3, 1923
66th 67th
Elected in 1918 .Re-elected in 1920 . Lost re-election.
William H. Boyce (Dover )
Democratic
March 4, 1923 – March 3, 1925
68th
Elected in 1922 . Lost re-election.
Robert G. Houston (Georgetown )
Republican
March 4, 1925 – March 3, 1933
69th 70th 71st 72nd
Elected in 1924 .Re-elected in 1926 .Re-elected in 1928 .Re-elected in 1930 . Retired.
Wilbur L. Adams (Wilmington )
Democratic
March 4, 1933 – January 3, 1935
73rd
Elected in 1932 . Retired to run for U.S. senator .
J. George Stewart (Wilmington )
Republican
January 3, 1935 – January 3, 1937
74th
Elected in 1934 . Lost re-election.
William F. Allen (Seaford )
Democratic
January 3, 1937 – January 3, 1939
75th
Elected in 1936 . Lost re-election.
George S. Williams (Millsboro )
Republican
January 3, 1939 – January 3, 1941
76th
Elected in 1938 . Lost re-election.
Philip A. Traynor (Wilmington )
Democratic
January 3, 1941 – January 3, 1943
77th
Elected in 1940 . Lost re-election.
Earle D. Willey (Dover )
Republican
January 3, 1943 – January 3, 1945
78th
Elected in 1942 . Lost re-election.
Philip A. Traynor (Wilmington )
Democratic
January 3, 1945 – January 3, 1947
79th
Elected in 1944 . Lost re-election.
J. Caleb Boggs (Wilmington )
Republican
January 3, 1947 – January 3, 1953
80th 81st 82nd
Elected in 1946 .Re-elected in 1948 .Re-elected in 1950 . Retired to run for Governor of Delaware .
Herbert Warburton (Wilmington )
Republican
January 3, 1953 – January 3, 1955
83rd
Elected in 1952 . Retired to run for U.S. senator .
Harris McDowell (Middletown )
Democratic
January 3, 1955 – January 3, 1957
84th
Elected in 1954 . Lost re-election.
Harry G. Haskell Jr. (Wilmington )
Republican
January 3, 1957 – January 3, 1959
85th
Elected in 1956 . Lost re-election.
Harris McDowell (Middletown )
Democratic
January 3, 1959 – January 3, 1967
86th 87th 88th 89th
Elected in 1958 .Re-elected in 1960 .Re-elected in 1962 .Re-elected in 1964 . Lost re-election.
William Roth (Wilmington )
Republican
January 3, 1967 – December 31, 1970
90th 91st
Elected in 1966 .Re-elected in 1968 . Retired to run for U.S. senator and resigned after the election.
Vacant
December 31, 1970 – January 3, 1971
91st
Pete du Pont (Rockland )
Republican
January 3, 1971 – January 3, 1977
92nd 93rd 94th
Elected in 1970 .Re-elected in 1972 .Re-elected in 1974 . Retired to run for Governor of Delaware .
Thomas B. Evans Jr. (Wilmington )
Republican
January 3, 1977 – January 3, 1983
95th 96th 97th
Elected in 1976 .Re-elected in 1978 .Re-elected in 1980 . Lost re-election.
Tom Carper (Wilmington )
Democratic
January 3, 1983 – January 3, 1993
98th 99th 100th 101st 102nd
Elected in 1982 .Re-elected in 1984 .Re-elected in 1986 .Re-elected in 1988 .Re-elected in 1990 . Retired to run for Governor of Delaware .
Mike Castle (Wilmington )
Republican
January 3, 1993 – January 3, 2011
103rd 104th 105th 106th 107th 108th 109th 110th 111th
Elected in 1992 .Re-elected in 1994 .Re-elected in 1996 .Re-elected in 1998 .Re-elected in 2000 .Re-elected in 2002 .Re-elected in 2004 .Re-elected in 2006 .Re-elected in 2008 . Retired to run for U.S. senator .
John Carney (Wilmington )
Democratic
January 3, 2011 – January 3, 2017
112th 113th 114th
Elected in 2010 .Re-elected in 2012 .Re-elected in 2014 . Retired to run for Governor of Delaware .
Lisa Blunt Rochester (Wilmington )
Democratic
January 3, 2017 – present
115th 116th 117th 118th
Elected in 2016 .Re-elected in 2018 .Re-elected in 2020 .Re-elected in 2022 . Retiring at the end of term to run for U.S. Senator .