United States congressional delegations from Arizona

These are tables of congressional delegations from Arizona to the United States House of Representatives and the United States Senate.

List of members of the Arizonan United States House delegation, their terms in office, district boundaries, and the district political ratings according to the CPVI. The delegation has a total of 9 members, with 5 Republicans, and 4 Democrats.

Tables showing membership in the Arizona federal House delegation throughout history of statehood in the United States.

After the 1940 census, a second seat was added. For six years, the seats were elected at-large statewide on a general ticket. In 1949, districts were used.

After the 2010 Census, Arizona gained one seat.

Tables showing membership in the Arizona federal Senate delegation throughout history of statehood in the United States.

As of April 2015^[update], there are two former U.S. Senators from the U.S. State of Arizona who are currently living at this time, two from Class 1.

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