States are represented in the House of Representatives in approximate proportion to their populations, with every state guaranteed at least one seat. There are currently 435 voting representatives. Five delegates and one resident commissioner serve as non-voting members of the House, although they can vote in committee. Representatives must be 25 years old and must have been U.S. citizens for at least 7 years. Representatives serve 2-year terms.
Interaction Between the House and Senate
Read up on the relationship between the two chambers with these essays by the Senate Historian's Office.
Profiles of Members of Congress
Pictorial Directory (105th Congress-present) (GPO-FDSYS)
New Member Pictorial Directory: 114th Congress (GPO-FDSYS)
Link to tables of information on the history of the House of Representatives.