1818–19 United States Senate elections

← 1816 & 1817 Dates vary by state 1820 & 1821 →
14 of the 42 seats in the United States Senate (plus special elections) 22 seats needed for a majority
Majority party Minority party   Party Democratic-Republican Federalist Last election 25 seats 13 seats Seats before 28 12 Seats won 14 0 Seats after 30 9 Seat change 3 3 Seats up 11 3
Results:      Dem-Republican hold      Dem-Republican gain      Legislature Failed To Elect
Majority Party before election Democratic-Republican Elected Majority Party Democratic-Republican

The 1818–19 United States Senate elections were held on various dates in various states. As these U.S. Senate elections were prior to the ratification of the Seventeenth Amendment in 1913, senators were chosen by state legislatures. Senators were elected over a wide range of time throughout 1818 and 1819, and a seat may have been filled months late or remained vacant due to legislative deadlock.^[1] In these elections, terms were up for the senators in Class 3.

The Democratic-Republican Party gained two seats. The Federalists had only three seats being contested, of which they lost two and the third was left vacant due to a failure to elect.

Results summary

Senate party division, 16th Congress (1819–1821)

• Majority party: Democratic-Republican (30–37)
• Minority party: Federalist (9)
• Vacant: 3–0
• Total seats: 42–46

Change in composition

Before the elections

After the admission of Illinois.

Result of the general elections