The 55th United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, D.C., from March 4, 1897, to March 4, 1899, during the first two years of William McKinley's presidency. The apportionment of seats in the House of Representatives was based on the 1890 United States census. Both chambers had a Republican majority. There was one African-American member, George Henry White, a Republican from the state of North Carolina, and one Kaw member, Charles Curtis, a Republican from Kansas.

Major events

Major legislation

Treaties ratified

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

[[File:Membership_of_the_55th_United_States_Senate_by_state.svg|thumb|350px|Senate composition by state ]]

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 ended with this Congress, requiring re-election in 1898; Class 2 meant their term began in the last Congress, requiring re-election in 1900; and Class 3 meant their term began in this Congress, requiring re-election in 1902.

Alabama

Arkansas

California

Colorado

Connecticut

Delaware

Florida

Georgia

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New York

North Carolina

North Dakota

Ohio

Oregon

Pennsylvania

Rhode Island

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming

House of Representatives

The names of members of the House of Representatives are preceded by their district numbers.

Alabama

Arkansas

California

Colorado

Connecticut

Delaware

Florida

Georgia

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New York

North Carolina

North Dakota

Ohio

Oregon

Pennsylvania

Rhode Island

South Carolina

South Dakota

Both representatives were elected statewide on a general ticket.

Tennessee

Texas

Utah

Vermont

Virginia

Washington

Both representatives were elected statewide on a general ticket.

West Virginia

Wisconsin

Wyoming

Non-voting members

[[File:55 us house membership.png|thumb|

Changes in membership

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

Senate

House of Representatives

Committees

Senate

House of Representatives

Joint committees

Caucuses

Employees

Legislative branch agency directors

Senate

House of Representatives