The United States Congress includes the United States House of Representatives.
The United States Congress is the bicameral legislature of the federal government of the United States consisting of two chambers : the Senate and the House of Representatives . The Congress meets in the Capitol in Washington , D.C. Both senators and representatives are chosen through direct election , though vacancies in the Senate may be filled by a gubernatorial appointment . Congress has 535 voting members : 435 Representatives and 100 Senators . The members of the House of Representatives serve two-year terms representing the people of a single constituency , known as a `` district '' . The United States Senate is the upper chamber of the United States Congress which , along with the United States House of Representatives , the lower chamber , composes the legislature of the United States of America .