85615 leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 79% of adults in 85615 typically vote, above the U.S. average of about 62%. Among adults in 85615, ~24% vote Democratic, ~55% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How 85615 compares
Among zip codes within 15 miles, 85615 is the most Republican-leaning.
85615 runs about 34 points more Republican than Arizona as a whole.
Why 85615 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 85615. The lean here lands roughly where demographic data alone would predict.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 85615, AZ sits in the bottom quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 85615 looks the way it does
Homeowners vote more often than renters. About 91% of households in 85615 own their home, about 18 points above the Arizona average of 73%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
Sources and methodology
Precinct-level voting records used to fit the model come from Arizona Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.