Arizona Congressional Candidates 2025. Arizona has 9 congressional districts. Former president donald trump, seen here on october 9, 2022, in mesa, ariz.,.

District 3, which includes south and west phoenix, is a democratic stronghold left open when current rep. The district covers most of the state’s western region, including parts of la paz, maricopa, mohave, and yuma counties and the cities of kingman and lake havasu city.