Arizona's 21st legislative district

Arizona's 21st legislative district is one of 30 in the state, consisting of sections of Cochise County, Pima County, and Santa Cruz County. As of 2023, there are 70 precincts in the district, with a total registered voter population of 130,490. The district has an overall population of 244,412.

Following the 2020 United States redistricting cycle, the Arizona Independent Redistricting Commission (AIRC) redrew legislative district boundaries in Arizona. The 21st district was drawn as a majority Latino constituency, with 58% 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 Rosanna Gabaldón (D-Sahuarita) in the Arizona Senate and by Consuelo Hernandez (D-Sunnyside) and Stephanie Stahl Hamilton (D-Tucson) in the Arizona House of Representatives.

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