The district came into existence when the
U.S. state of
Oregon was admitted to the
Union on February 14, 1859. Its first representative,
La Fayette Grover, had been elected in June 1858 in anticipation of statehood, but since Congress delayed action until February 1859, Grover served only 17 days as Representative. The district ceased to exist after the
1890 U.S. census apportioned another representative to Oregon beginning with the
53rd United States Congress which convened on March 3, 1893.
Binger Hermann was Oregon's last at-large Representative. He represented
Oregon's 1st congressional district beginning in 1893. == List of members representing the district ==