The U.S. House of Representatives has 435 voting members. This number has been fixed by law since the Apportionment Act of 1911 and was reaffirmed by the Reapportionment Act of 1929, which capped the size of the House at 435 members
. These voting members represent the 50 states, with the number of representatives from each state determined proportionally based on population as measured by the decennial census
. In addition to the 435 voting members, there are 6 non-voting delegates representing the District of Columbia and U.S. territories such as Guam, the U.S. Virgin Islands, the Commonwealth of the Northern Mariana Islands, and American Samoa, plus a resident commissioner from Puerto Rico who also does not have a vote on the House floor
