Rank | Senator (party-state) | Seniority date | Other factors |
1 | William Rufus de Vane King (J-AL) | December 14, 1819 | |
2 | Nehemiah Rice Knight (AJ-RI) | January 9, 1821 |
3 | Thomas Hart Benton (D-MO) | August 10, 1821 |
4 | William Hendricks (AJ-IN) | March 4, 1825 | Former representative |
5 | Elias Kent Kane (J-IL)[6] |
6 | Hugh Lawson White (AJ-TN) | October 28, 1825 |
7 | Ashur Robbins (AJ-RI) | October 31, 1825 |
8 | John Tyler (AJ-VA)[7] | March 4, 1827 |
9 | Daniel Webster (AJ-MA) | June 8, 1827 |
10 | John Middleton Clayton (AJ-DE)[8] | March 4, 1829 |
11 | Felix Grundy (D-TN) | October 19, 1829 |
12 | Bedford Brown (D-NC) | December 9, 1829 |
13 | Arnold Naudain (AJ-DE)[9] | January 13, 1830 |
14 | John McCracken Robinson (J-IL) | December 11, 1830 |
15 | Gideon Tomlinson (AJ-CT) | March 4, 1831 | Former representative (8 years); Connecticut 14th in population (1820) |
16 | Gabriel Moore (J-AL) | Former representative (8 years); Alabama 19th in population (1820) |
17 | Willie Person Mangum (AJ-NC)[10] | Former representative (3 years) |
18 | Thomas Ewing (AJ-OH) | Ohio 5th in population (1820) |
19 | Isaac Hill (D-NH)[11] | New Hampshire 15th in population (1820) |
20 | Samuel Prentiss (AJ-VT) | Vermont 16th in population (1820) |
21 | Henry Clay (AJ-KY) | November 10, 1831 |
22 | John Tipton (D-IN) | January 3, 1832 |
23 | John Black (J-MS) | November 12, 1832 |
24 | John Caldwell Calhoun (N-SC) | December 29, 1832 |
25 | Silas Wright, Jr. (D-NY) | January 4, 1833 |
26 | Samuel Lewis Southard (AJ-NJ) | March 4, 1833 | Former senator |
27 | Joseph Kent (AJ-MD) | Former representative (10 years) |
28 | Samuel McKean (J-PA) | Former representative (6 years) |
29 | Benjamin Swift (AJ-VT) | Former representative (4 years) |
30 | Nathaniel Pitcher Tallmadge (J-NY) | New York 1st in population (1830) |
31 | Thomas Morris (J-OH) | Ohio 4th in population (1830) |
32 | Ether Shepley (J-ME)[12] | Maine 12th in population (1830) |
33 | Nathan Smith (J-CT)[13] | Connecticut 16th in population (1830) |
34 | Lewis Fields Linn (J-MO) | October 25, 1833 |
35 | John Pendleton King (D-GA) | November 21, 1833 |
36 | William Campbell Preston (N-SC) | November 26, 1833 |
37 | Alexander Porter (AJ-LA)[14] | December 19, 1833 |
38 | Benjamin Watkins Leigh (AJ-VA)[15] | February 26, 1834 |
39 | James Buchanan (D-PA) | December 6, 1834 |
40 | Alfred Cuthbert (W-MD) | January 12, 1835 |
41 | Robert Henry Goldsborough (W-MD)[16] | January 13, 1835 |
42 | John Ruggles (J-ME) | January 20, 1835 |
43 | John Jordan Crittenden (AJ-KY) | March 4, 1835 | Former senator |
44 | Henry Hubbard (D-NH) | Former representative |
45 | John Davis (AJ-MA) | Former governor |
46 | Garret Dorset Wall (D-NJ) | New Jersey 14th in population (1830) |
47 | Robert John Walker (D-MS) | Mississippi 22nd in population (1830) |
| John Milton Niles (D-CT) | December 21, 1835 |
| William Lee Davidson Ewing (J-IL) | December 30, 1835 |
48 | Robert Carter Nicholas (J-LA) | January 13, 1836 |
| William Cabell Rives (J-VA) | March 4, 1836 |
| John Page (J-NH) | June 8, 1836 |
| Richard Henry Bayard (AJ-DE) | June 17, 1836 |
49 | Ambrose Hundley Sevier (J-AR) | September 18, 1836 | Former delegate |
50 | William Savin Fulton (D-AR) |
| Robert Strange (J-NC) | December 5, 1836 |
| Judah Dana (J-ME) | December 7, 1836 |
| Richard Elliott Parker (J-VA) | December 12, 1836 |
| John Selby Spence (AJ-MD) | December 31, 1836 |
| Thomas Clayton (AJ-DE) | January 9, 1837 |
| Alexander Mouton (D-LA) | January 12, 1837 |
51 | Lucius Lyon (D-MI) | January 26, 1837 | Former delegate |
52 | John Norvell (D-MI) |