When Arizona became a state in 1912, it was allocated a single seat in the United States House of Representatives, whose member was elected at-large, or statewide.

The 62nd United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, D.C., from March 4, 1911, to March 4, 1913, during the final two years of William H. Taft's presidency.