The 6th United States Congress was the 6th meeting of the legislative branch of the United States federal government, consisting of the Senate and the House of Representatives. It initially met at Congress Hall in Philadelphia, Pennsylvania and then was the first congress to meet in the new Capitol Building in Washington, D.C.. Its term was from March 4, 1799, to March 4, 1801, during the last two years of John Adams's presidency. It was the last Congress of the 18th century and the first to convene in the 19th. The apportionment of seats in House of Representatives was based on the 1790 United States census. Both chambers had a Federalist majority. This was the last Congress in which the Federalist Party controlled the presidency or either chamber of Congress.

Major events

! | States for Jefferson ! | States for Burr ! States casting blank ballots

Major legislation

Party summary

The count below identifies party affiliations at the beginning of the first session of this Congress, and includes members from vacancies and newly admitted states, when they were first seated. Changes resulting from subsequent replacements are shown below in the "Changes in membership" section.

Senate

House of Representatives

Leadership

Senate

House of Representatives

Members

This list is arranged by chamber, then by state. Senators are listed by class, and representatives are listed by district.

Senate

Senators were elected by the state legislatures every two years, with one-third beginning new six-year terms with each Congress. Preceding the names in the list below are Senate class numbers, which indicate the cycle of their election. In this Congress, Class 1 meant their term began in the last Congress, requiring re-election in 1802; Class 2 meant their term began in this Congress, requiring re-election in 1804; and Class 3 meant their term ended with this Congress, requiring re-election in 1800.

Connecticut

Delaware

Georgia

Kentucky

Maryland

Massachusetts

New Hampshire

New Jersey

New York

North Carolina

Pennsylvania

Rhode Island

South Carolina

Tennessee

Vermont

Virginia

[Senators' party membership by state at the opening of the 6th Congress in March 1799.

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House of Representatives

The names of members of the House of Representatives elected statewide on the general ticket or otherwise at-large, are preceded by an "At-large," and the names of those elected from districts, whether plural or single member, are preceded by their district numbers.

Connecticut

All representatives were elected statewide on a general ticket.

Delaware

Georgia

Both representatives were elected statewide on a general ticket.

Kentucky

Maryland

Massachusetts

New Hampshire

All representatives were elected statewide on a general ticket.

New Jersey

New York

North Carolina

Pennsylvania

The 4th district was a plural district with two representatives.

Rhode Island

Both representatives were elected statewide on a general ticket.

South Carolina

Tennessee

Vermont

Virginia

Non-voting members

Changes in membership

The count below reflects changes from the beginning of the first session of this Congress

Senate

There were 7 resignations and 1 vacancy at the beginning of Congress. The Federalists had a 1-seat net loss and the Democratic-Republicans had a 2-seat net gain.

House of Representatives

There were 6 resignations and 3 deaths. The Federalists had a 4-seat net loss and the Democratic-Republicans had a 3-seat net gain.

Committees

Lists of committees and their party leaders.

Senate

House of Representatives

Joint committees

Administrative officers

Senate

House of Representatives