Arizona's 3rd legislative district is one of 30 in the state, consisting of a section of Maricopa County.

As of 2023, there are 58 precincts in the district, all in Maricopa, with a total registered voter population of 175,721.

[2] Following the 2020 United States redistricting cycle, the Arizona Independent Redistricting Commission (AIRC) redrew legislative district boundaries in Arizona.

According to the AIRC, the district is outside of competitive range and considered leaning Republican.

[3] The district is represented in the 56th Arizona State Legislature, which convenes from January 1, 2023 to December 31, 2024, by John Kavanagh (R-Scottsdale) in the Arizona Senate and by Joseph Chaplik (R-Scottsdale) and Alexander Kolodin (R-Scottsdale) in the Arizona House of Representatives.