Name Took office Left office Party Notes/Events
1 Benjamin Contee.jpg Benjamin Contee March 4, 1789 March 3, 1791 Anti-Administration
2 Williampinkney (1).jpg William Pinkney March 4, 1791 November, 1791 Pro-Administration resigned
3 John Francis Mercer.jpg John Francis Mercer February 5, 1792 March 3, 1793 Anti-Administration
4 Uriah Forrest.jpg Uriah Forrest March 4, 1793 November 8, 1794 Pro-Administration resigned
5 No image.svg Benjamin Edwards January 2, 1795 March 3, 1795 Pro-Administration
6 No image.svg Jeremiah Crabb March 4, 1795 June 1, 1796 Federalist resigned
7 No image.svg William Craik December 5, 1796 March 3, 1801 Federalist
8 No image.svg Thomas Plater March 4, 1801 March 3, 1805 Federalist
9 No image.svg Patrick Magruder March 4, 1805 March 3, 1807 Democratic-Republican
10 PBkey.jpg Philip Barton Key March 4, 1807 March 3, 1813 Federalist
11 Alexanderhanson.jpg Alexander Contee Hanson March 4, 1813 1816 Federalist resigned
12 No image.svg George Peter October 7, 1816 March 3, 1819 Federalist
13 No image.svg Henry Ridgely Warfield March 4, 1819 March 3, 1823 Federalist
March 4, 1823 March 3, 1825 Adams Federalist
14 No image.svg George Peter March 4, 1825 March 3, 1827 Jacksonian
15 No image.svg George Corbin Washington March 4, 1827 March 3, 1829 Adams
March 4, 1829 March 3, 1833 Anti-Jacksonian
17 No image.svg James Turner March 4, 1833 March 3, 1837 Jacksonian
18 No image.svg John Tolley Hood Worthington March 4, 1837 March 3, 1841 Democratic
19 No image.svg James Wray Williams March 4, 1841 December 2, 1842 Democratic died
20 No image.svg Charles S. Sewall January 2, 1843 March 3, 1843 Democratic
21 No image.svg John Wethered March 4, 1843 March 3, 1845 Whig
22 Thomas ligon maryland.jpg Thomas Watkins Ligon March 4, 1845 March 3, 1849 Democratic
23 No image.svg Edward Hammond March 4, 1849 March 3, 1853 Democratic
24 No image.svg Joshua Van Sant March 4, 1853 March 3, 1855 Democratic
25 No image.svg James Morrison Harris March 4, 1855 March 3, 1861 Know-Nothing
26 No image.svg Cornelius Lawrence Ludlow Leary March 4, 1861 March 3, 1863 Unionist
27 Henry Winter Davis.jpg Henry Winter Davis March 4, 1863 March 3, 1865 Unconditional Unionist
28 Hon. Charles E. Phelps, Maryland - NARA - 527033.jpg Charles Edward Phelps March 4, 1865 March 3, 1867 Unconditional Unionist
March 4, 1867 March 4, 1869 Conservative
29 Thomas Swann of Maryland - photo portrait seated.jpg Thomas Swann March 4, 1869 March 3, 1873 Democratic Redistricted to the 4th district
30 No image.svg William James O'Brien March 4, 1873 March 3, 1877 Democratic
31 William Kimmel of Maryland - photo portrait seated circa 1865 to 1880.jpg William Kimmel March 4, 1877 March 3, 1881 Democratic
32 No image.svg Fetter Schrier Hoblitzell March 4, 1881 March 3, 1885 Democratic
33 No image.svg William Hinson Cole March 4, 1885 July 8, 1886 Democratic died
34 No image.svg Harry Welles Rusk November 2, 1886 March 3, 1897 Democratic
35 No image.svg William Samuel Booze March 4, 1897 March 3, 1899 Republican
36 No image.svg Frank Charles Wachter March 4, 1899 March 3, 1907 Democratic
37 No image.svg Harry Benjamin Wolf March 4, 1907 March 3, 1909 Democratic
38 No image.svg John Kronmiller March 4, 1909 March 3, 1911 Republican
39 No image.svg George Konig March 4, 1911 May 31, 1913 Democratic died
40 No image.svg Charles Pearce Coady November 4, 1913 March 3, 1921 Democratic
41 No image.svg John Boynton Philip Clayton Hill March 4, 1921 March 3, 1927 Republican
42 No image.svg Vincent Palmisano March 4, 1927 January 3, 1939 Democratic
43 ThomasD'AlesandroJrOfficial.jpg Thomas D'Alesandro, Jr. January 3, 1939 May 16, 1947 Democratic resigned to become Mayor of Baltimore
44 No image.svg Edward Garmatz July 15, 1947 January 3, 1973 Democratic
45 Paul Sarbanes.jpg Paul Sarbanes January 3, 1973 January 3, 1977 Democratic Redistricted from the 4th district
46 Barbara Mikulski.jpg Barbara Mikulski January 3, 1977 January 3, 1987 Democratic
47 Ben Cardin, official Senate photo portrait.jpg Benjamin Cardin January 3, 1987 January 3, 2007 Democratic
48 John Sarbanes, official 110th Congress photo portrait 2.jpg John Sarbanes January 3, 2007 Incumbent Democratic