First-Term Members of the House of Representatives and Senate, 64th - 113th Congresses [January 25, 2013] [open pdf - 305KB]
"This report provides summary data on the number of Senators and Members of the House of Representatives who first entered Congress between the 64th Congress (1915-1917) and the 113th Congress (2013-2014). First-term membership is divided into two broad categories in each chamber: Members chosen prior to the convening of a Congress, and those chosen after a Congress convenes. The resulting data, combining pre-convening and post-convening first-term Members, provide a count of all Members who served a first term in the House or Senate. Since the convening of the 64th Congress, 4,126 individuals have entered the House of Representatives for their first, or 'freshman,' terms as Representatives. An additional 26 have begun service as Delegates or Resident Commissioners. During the same period, 825 individuals began their first terms in the Senate."
CRS Report for Congress, R41283
U.S. Department of State: http://www.state.gov/