An independent, nonpartisan civic resourcePublic data. Public knowledge.
Congress by the numbers

How many members of Congress are there?

Congress has 535 voting members: 100 senators and 435 representatives. Six more members of the House represent the District of Columbia and the territories and cannot vote on final passage of bills, which brings the total to 541.

Roster checked Nov 7, 2026Sources linked below

Seats in each chamber

Each of the 50 states has two senators. The 435 House seats are divided among the states by population after each census, and every state has at least one.

Seats and currently serving members, roster checked Nov 7, 2026
GroupSeatsServingDemocratRepublicanIndependent
U.S. Senate10010045532
U.S. House, voting members4354332142181
U.S. House, non-voting members66330

The serving count is lower than the seat count when a seat is vacant. On the roster date, the states with fewer serving voting House members than seats were Florida, Texas.

This table counts members in office. People elected on November 3, 2026 take office on January 3, 2027. See the 2026 election results.

Non-voting members of the House

The District of Columbia, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands and the U.S. Virgin Islands each elect one member. Puerto Rico’s is called the resident commissioner, and the others are delegates. They have no senators.

Congress members by state

Seats come from the 2020 Census apportionment and apply until the next one. Open a state to see who holds them.

Congress by the numbers

Sources & methodology

  1. The Constitution of the United States ↗
    Library of Congress, Constitution Annotated — Senate seats per state and minimum ages for members
  2. 2020 Census apportionment results, Table 1 ↗
    U.S. Census Bureau — House seats for each state, based on a House of 435 members
  3. United States Congress legislators dataset ↗
    unitedstates / GovTrack contributors — Biographical details, terms, official contact details and committees

Dates and coverage differ by source. How we use this data · Suggest a correction