87th United States Congress

The apportionment of seats in the House of Representatives was based on the 1950 United States census, along with two seats temporarily added in 1959 (one member each from recently admitted states of Alaska and Hawaii).

With President Kennedy being sworn in on January 20, 1961, this gave the Democrats an overall federal government trifecta for the first time since the 82nd Congress in 1952.

Senators are popularly elected statewide every two years, with one-third beginning new six-year terms with each Congress.

Currently, this is the last Congressional session in which the Democratic Party commanded all Senate seats from the Deep South, a unity broken when a Republican defeated the appointed successor to Lyndon Johnson's seat in a 1961 Senate special election.

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

Senate President Lyndon Johnson (L) and House Speaker Sam Rayburn seated behind President John Kennedy during his first State of the Union address on January 30, 1961.
The official Joint Resolution of Congress proposing what became the 24th Amendment as contained in the National Archives
Senators' party membership by state at the opening of the 87th Congress in January 1961
2 Democrats
1 Democrat and 1 Republican
2 Republicans
House seats by party holding plurality in state
80+% Democratic
80+% Republican
60+% to 80% Democratic
60+% to 80% Republican
Up to 60% Democratic
Up to 60% Republican