| Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2006, 2012, 2018, and 2024. The next election will be in 2030. |
C |
Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2004, 2010, 2016, and 2022. The next election will be in 2028. |
| # |
Senator |
Party |
Dates in office |
Electoral history |
T |
T |
Electoral history |
Dates in office |
Party |
Senator |
# |
| 1 |
 Charles Carroll (Annapolis) |
Pro- Admin. |
Mar 4, 1789 – Nov 30, 1792 |
Elected in 1788. |
1 |
1st |
1 |
Elected in 1788. |
Mar 4, 1789 – Dec 10, 1797 |
Pro- Admin. |
John Henry (Dorchester County) |
1 |
| Re-elected in 1791.Resigned to remain in the Maryland Senate. |
2 |
2nd |
| Vacant |
Nov 30, 1792 – Jan 10, 1793 |
|
| 2 |
 Richard Potts (Frederick) |
Pro- Admin. |
Jan 10, 1793 – Oct 24, 1796 |
Elected to finish Carroll's term.Resigned. |
| 3rd |
| 4th |
2 |
Re-elected in 1795.Resigned to become Governor of Maryland. |
| Vacant |
Oct 24, 1796 – Nov 30, 1796 |
|
| 3 |
 John Eager Howard (Baltimore County) |
Federalist |
Nov 30, 1796 – Mar 3, 1803 |
Elected to finish Carroll's term. |
| Re-elected in 1796.Lost re-election. |
3 |
5th |
| Elected to finish Henry's term.Resigned. |
Dec 11, 1797 – Dec 1, 1800 |
Federalist |
James Lloyd (Chestertown) |
2 |
| 6th |
| |
Dec 1, 1800 – Dec 12, 1800 |
Vacant |
| Elected to finish Henry's term. |
Dec 12, 1800 – Nov 19, 1801 |
Federalist |
 William Hindman (Talbot County) |
3 |
| 7th |
3 |
Appointed to fill the vacancy after the Legislature failed to elect.Retired when successor elected. |
| Elected to finish term.Resigned to become Governor of Maryland. |
Nov 19, 1801 – Nov 12, 1806 |
Democratic- Republican |
 Robert Wright (Chestertown) |
4 |
| 4 |
 Samuel Smith (Baltimore) |
Democratic- Republican |
Mar 4, 1803 – Mar 3, 1815 |
Elected in 1802.[3] |
4 |
8th |
| 9th |
| |
Nov 12, 1806 – Nov 25, 1806 |
Vacant |
| Elected to finish Wright's term. |
Nov 25, 1806 – Mar 3, 1813 |
Democratic- Republican |
 Philip Reed (Chestertown) |
5 |
| 10th |
4 |
Re-elected in 1806. |
| Re-elected in 1809.[4][data missing] |
5 |
11th |
| 12th |
| 13th |
5 |
Legislature failed to elect. |
Mar 3, 1813 – May 21, 1813 |
Vacant |
| Elected in 1813 to finish term.[data missing] |
May 21, 1813 – Mar 3, 1819 |
Federalist |
Robert Henry Goldsborough (Easton) |
6 |
| Vacant |
Mar 4, 1815 – Jan 29, 1816 |
Legislature failed to elect |
6 |
14th |
| 5 |
 Robert Goodloe Harper (Baltimore) |
Federalist |
Jan 29, 1816 – Dec 6, 1816 |
Elected to finish term.Resigned. |
| Vacant |
Dec 6, 1816 – Dec 20, 1816 |
|
| 6 |
 Alexander Hanson (Elkridge) |
Federalist |
Dec 20, 1816 – Apr 23, 1819 |
Elected to finish the vacant term that happened from 1815 to 1816.Died. |
| 15th |
| 16th |
6 |
Legislature did not elect until after the term began. |
Mar 4, 1819 – Dec 20, 1819 |
Vacant |
| Vacant |
Apr 23, 1819 – Dec 21, 1819 |
|
| 7 |
 William Pinkney (Baltimore) |
Democratic- Republican |
Dec 20, 1819 – Feb 25, 1822 |
Elected in 1819 to finish the vacant term that happened from 1815 to 1816. |
Elected late in 1819. |
Dec 21, 1819 – Jan 14, 1826 |
Democratic- Republican |
 Edward Lloyd (Wye Mills) |
7 |
| Re-elected in 1821.Died. |
7 |
17th |
| Vacant |
Feb 25, 1822 – Dec 17, 1822 |
|
| 8 |
 Samuel Smith (Baltimore) |
Democratic- Republican |
Dec 17, 1822 – Mar 3, 1833 |
Elected to finish Pinkney's term. |
| 18th |
| Jacksonian |
19th |
7 |
Re-elected in 1825.Resigned. |
Jacksonian |
| |
Jan 14, 1826 – Jan 24, 1826 |
Vacant |
| Elected to finish Lloyd's term. |
Jan 24, 1826 – Dec 20, 1834 |
National Republican |
 Ezekiel F. Chambers (Chestertown) |
8 |
| Re-elected in 1827. |
8 |
20th |
| 21st |
| 22nd |
8 |
Re-elected in 1831.Resigned to become judge of the Maryland Court of Appeals. |
| 9 |
 Joseph Kent (Bladensburg) |
National Republican |
Mar 4, 1833 – Nov 24, 1837 |
Elected in 1833.Died. |
9 |
23rd |
| |
Dec 20, 1834 – Jan 13, 1835 |
Vacant |
| Elected to finish Chambers's term.Died. |
Jan 13, 1835 – Oct 5, 1836 |
National Republican |
Robert Henry Goldsborough (Easton) |
9 |
| 24th |
| |
Oct 5, 1836 – Dec 31, 1836 |
Vacant |
| Elected to finish Chambers's term. |
Dec 31, 1836 – Oct 24, 1840 |
National Republican |
John S. Spence (Berlin) |
10 |
| Whig |
25th |
9 |
Re-elected in 1837.Died. |
Whig |
| Vacant |
Nov 24, 1837 – Jan 4, 1838 |
|
| 10 |
William Duhurst Merrick (Port Tobacco) |
Whig |
Jan 4, 1838 – Mar 3, 1845 |
Elected to finish Kent's term. |
| Re-elected in 1839.[data missing] |
10 |
26th |
| |
Oct 24, 1840 – Jan 5, 1841 |
Vacant |
| Elected to finish Spence's term.[data missing] |
Jan 5, 1841 – Mar 3, 1843 |
Whig |
 John Leeds Kerr (Easton) |
11 |
| 27th |
| 28th |
10 |
Elected in 1843. |
Mar 4, 1843 – Dec 20, 1862 |
Whig |
 James Pearce (Chestertown) |
12 |
| 11 |
 Reverdy Johnson (Annapolis) |
Whig |
Mar 4, 1845 – Mar 7, 1849 |
Election year unknown.Resigned to become U.S. Attorney General. |
11 |
29th |
| 30th |
| 31st |
11 |
Re-elected in 1849. |
| Vacant |
Mar 7, 1849 – Dec 6, 1849 |
|
| 12 |
 David Stewart (Baltimore) |
Democratic |
Dec 6, 1849 – Jan 12, 1850 |
Appointed to continue Johnson's term.Retired when successor elected. |
| 13 |
 Thomas Pratt (Annapolis) |
Whig |
Jan 12, 1850 – Mar 3, 1857 |
Elected to finish Johnson's term. |
| Re-elected in 1851. |
12 |
32nd |
| 33rd |
| 34th |
12 |
Re-elected in 1855. |
| 14 |
 Anthony Kennedy (Baltimore) |
American |
Mar 4, 1857 – Mar 3, 1863 |
Election year unknown. [data missing] |
13 |
35th |
Democratic |
| 36th |
| Union |
37th |
13 |
Re-elected in 1860.Died. |
| |
Dec 20, 1862 – Dec 29, 1862 |
Vacant |
| Appointed to continue Pearce's term.Elected in 1864 to finish Pearce's term.Died. |
Dec 29, 1862 – Feb 14, 1865 |
Union |
 Thomas Holliday Hicks (East New Market) |
13 |
| 15 |
 Reverdy Johnson (Annapolis) |
Union |
Mar 4, 1863 – Jul 10, 1868 |
Election year unknown.Resigned to become U.S. Ambassador to the United Kingdom of Great Britain and Ireland. |
14 |
38th |
| |
Feb 14, 1865 – Mar 9, 1865 |
Vacant |
| Democratic |
39th |
| Elected to finish Pearce's term.[data missing] |
Mar 9, 1865 – Mar 3, 1867 |
Unconditional Union |
 John Creswell (Elkton) |
14 |
| 40th |
14 |
Philip F. Thomas (D) was elected but failed to qualify due to his support for the Confederacy. |
Mar 4, 1867 – Mar 7, 1868 |
Vacant |
| Elected to finish Thomas's term.[data missing] |
Mar 7, 1868 – Mar 3, 1873 |
Democratic |
 George Vickers (Chestertown) |
15 |
| Vacant |
Jul 10, 1868 – Jul 13, 1868 |
|
| 16 |
 William Whyte (Baltimore) |
Democratic |
Jul 13, 1868 – Mar 3, 1869 |
Appointed to finish Johnson's term.Retired. |
| 17 |
 William T. Hamilton (Hagerstown) |
Democratic |
Mar 4, 1869 – Mar 3, 1875 |
Election year unknown.Retired to run for governor. |
15 |
41st |
| 42nd |
| 43rd |
15 |
Election year unknown.[data missing] |
Mar 4, 1873 – Mar 3, 1879 |
Democratic |
 George R. Dennis (Kingston) |
16 |
| 18 |
 William Whyte (Baltimore) |
Democratic |
Mar 4, 1875 – Mar 3, 1881 |
Elected in 1874.Retired. |
16 |
44th |
| 45th |
| 46th |
16 |
Elected in 1878.[5][data missing] |
Mar 4, 1879 – Mar 3, 1885 |
Democratic |
 James Black Groome (Elkton) |
17 |
| 19 |
 Arthur P. Gorman (Laurel) |
Democratic |
Mar 4, 1881 – Mar 3, 1899 |
Elected in 1880. |
17 |
47th |
| 48th |
| 49th |
17 |
Elected in 1884.Re-elected in 1890.Died. |
Mar 4, 1885 – Feb 24, 1891 |
Democratic |
 Ephraim Wilson (Snow Hill) |
18 |
| Re-elected in 1886. |
18 |
50th |
| 51st |
| |
Feb 24, 1891 – Nov 19, 1891 |
Vacant |
| 52nd |
18 |
| Appointed to continue Wilson's term.Elected in 1892 to finish Wilson's term.Unknown if retired or lost re-election. |
Nov 19, 1891 – Mar 3, 1897 |
Democratic |
 Charles H. Gibson (Easton) |
19 |
| Elected in 1892.Lost re-election. |
19 |
53rd |
| 54th |
| 55th |
19 |
Elected in 1896.[7]Retired. |
Mar 4, 1897 – Mar 3, 1903 |
Republican |
 George L. Wellington (Cumberland) |
20 |
| 20 |
 Louis E. McComas (Hagerstown) |
Republican |
Mar 4, 1899 – Mar 3, 1905 |
Elected in 1898.Retired to become judge of the U.S. Court of Appeals. |
20 |
56th |
| 57th |
| 58th |
20 |
Elected in 1902.[8]Died. |
Mar 4, 1903 – Jun 4, 1906 |
Democratic |
 Arthur P. Gorman (Laurel) |
21 |
| 21 |
 Isidor Rayner (Baltimore) |
Democratic |
Mar 4, 1905 – Nov 25, 1912 |
Elected in 1904. |
21 |
59th |
| |
Jun 4, 1906 – Jun 8, 1906 |
Vacant |
| Appointed to continue Gorman's term.Elected in 1908 to finish Gorman's term.Died. |
Jun 8, 1906 – Mar 17, 1908 |
Democratic |
 William Whyte (Baltimore) |
22 |
| 60th |
| |
Mar 17, 1908 – Mar 25, 1908 |
Vacant |
| Elected to finish Gorman's term, having already been elected to the next term. |
Mar 25, 1908 – Mar 3, 1921 |
Democratic |
 John Walter Smith (Snow Hill) |
23 |
| 61st |
21 |
Elected in 1908. |
| Re-elected in 1910.Died. |
22 |
62nd |
| Vacant |
Nov 25, 1912 – Nov 29, 1912 |
|
| 22 |
 William P. Jackson (Salisbury) |
Republican |
Nov 29, 1912 – Jan 28, 1914 |
Appointed to continue Rayner's term.Retired when successor elected. |
| 63rd |
| 23 |
 Blair Lee (Silver Spring) |
Democratic |
Jan 28, 1914 – Mar 3, 1917 |
Elected in 1913 to finish Rayner's term.Lost re-election. |
| 64th |
22 |
Re-elected in 1914.Lost re-election. |
| 24 |
 Joseph I. France (Port Deposit) |
Republican |
Mar 4, 1917 – Mar 3, 1923 |
Elected in 1916.Lost re-election. |
23 |
65th |
| 66th |
| 67th |
23 |
Elected in 1920.Lost re-election. |
Mar 4, 1921 – Mar 3, 1927 |
Republican |
 Ovington Weller (Baltimore) |
24 |
| 25 |
 William Cabell Bruce (Baltimore) |
Democratic |
Mar 4, 1923 – Mar 3, 1929 |
Elected in 1922.Lost re-election. |
24 |
68th |
| 69th |
| 70th |
24 |
Elected in 1926. |
Mar 4, 1927 – Jan 3, 1951 |
Democratic |
 Millard Tydings (Havre de Grace) |
25 |
| 26 |
 Phillips Lee Goldsborough (Cambridge) |
Republican |
Mar 4, 1929 – Jan 3, 1935 |
Elected in 1928.Retired to run for governor. |
25 |
71st |
| 72nd |
| 73rd |
25 |
Re-elected in 1932. |
| 27 |
 George L. P. Radcliffe (Baltimore) |
Democratic |
Jan 3, 1935 – Jan 3, 1947 |
Elected in 1934. |
26 |
74th |
| 75th |
| 76th |
26 |
Re-elected in 1938. |
| Re-elected in 1940.Lost renomination. |
27 |
77th |
| 78th |
| 79th |
27 |
Re-elected in 1944.Lost re-election. |
| 28 |
 Herbert O'Conor (Baltimore) |
Democratic |
Jan 3, 1947 – Jan 3, 1953 |
Elected in 1946.Retired. |
28 |
80th |
| 81st |
| 82nd |
28 |
Elected in 1950. |
Jan 3, 1951 – Jan 3, 1963 |
Republican |
 John Marshall Butler (Baltimore) |
26 |
| 29 |
 J. Glenn Beall (Frostburg) |
Republican |
Jan 3, 1953 – Jan 3, 1965 |
Elected in 1952. |
29 |
83rd |
| 84th |
| 85th |
29 |
Re-elected in 1956.Retired. |
| Re-elected in 1958.Lost re-election. |
30 |
86th |
| 87th |
| 88th |
30 |
Elected in 1962.Lost re-election. |
Jan 3, 1963 – Jan 3, 1969 |
Democratic |
 Daniel Brewster (Glyndon) |
27 |
| 30 |
 Joseph Tydings (Aberdeen) |
Democratic |
Jan 3, 1965 – Jan 3, 1971 |
Elected in 1964.Lost re-election. |
31 |
89th |
| 90th |
| 91st |
31 |
Elected in 1968. |
Jan 3, 1969 – Jan 3, 1987 |
Republican |
 Charles Mathias (Frederick) |
28 |
| 31 |
 J. Glenn Beall Jr. (Frostburg) |
Republican |
Jan 3, 1971 – Jan 3, 1977 |
Elected in 1970.Lost re-election. |
32 |
92nd |
| 93rd |
| 94th |
32 |
Re-elected in 1974. |
| 32 |
 Paul Sarbanes (Baltimore) |
Democratic |
Jan 3, 1977 – Jan 3, 2007 |
Elected in 1976. |
33 |
95th |
| 96th |
| 97th |
33 |
Re-elected in 1980.Retired. |
| Re-elected in 1982. |
34 |
98th |
| 99th |
| 100th |
34 |
Elected in 1986. |
Jan 3, 1987 – Jan 3, 2017 |
Democratic |
 Barbara Mikulski (Baltimore) |
29 |
| Re-elected in 1988. |
35 |
101st |
| 102nd |
| 103rd |
35 |
Re-elected in 1992. |
| Re-elected in 1994. |
36 |
104th |
| 105th |
| 106th |
36 |
Re-elected in 1998. |
| Re-elected in 2000.Retired. |
37 |
107th |
| 108th |
| 109th |
37 |
Re-elected in 2004. |
| 33 |
 Ben Cardin (Baltimore) |
Democratic |
Jan 3, 2007 – Jan 3, 2025 |
Elected in 2006. |
38 |
110th |
| 111th |
| 112th |
38 |
Re-elected in 2010.Retired. |
| Re-elected in 2012. |
39 |
113th |
| 114th |
| 115th |
39 |
Elected in 2016. |
Jan 3, 2017 – present |
Democratic |
 Chris Van Hollen (Kensington) |
30 |
| Re-elected in 2018.Retired. |
40 |
116th |
| 117th |
| 118th |
40 |
Re-elected in 2022. |
| 34 |
 Angela Alsobrooks (Upper Marlboro) |
Democratic |
Jan 3, 2025 – present |
Elected in 2024. |
41 |
119th |
| 120th |
| 121st |
41 |
To be determined in the 2028 election. |
| To be determined in the 2030 election. |
42 |
122nd |
| # |
Senator |
Party |
Years in office |
Electoral history |
T |
C |
T |
Electoral history |
Years in office |
Party |
Senator |
# |
| Class 1 |
Class 3 |