Arizona's 20th legislative district

Arizona's 20th legislative district is one of 30 in the state, consisting of a section of Pima County. As of 2023, there are 56 precincts in the district, all in Pima, with a total registered voter population of 125,451. The district has an overall population of 238,486.

Following the 2020 United States redistricting cycle, the Arizona Independent Redistricting Commission (AIRC) redrew legislative district boundaries in Arizona. The 20th district was drawn as a majority Latino constituency, with 53% of residents being Hispanic or Latino. According to the AIRC, the district is outside of competitive range and considered leaning Democratic.

Political representation
The district is represented in the 56th Arizona State Legislature, which convenes from January 1, 2023 to December 31, 2024, by Sally Ann Gonzales (D-Tucson) in the Arizona Senate and by Alma Hernandez (D-Tucson) and Betty Villegas (D-Tucson) in the Arizona House of Representatives.

On July 31, 2023, Betty Villegas was admitted into the House to fill the vacancy caused when Democratic Representative Andrés Cano resigned.

Election results
The 2022 elections were the first in the newly-drawn district.