85928 is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 64% of adults in 85928 typically vote, near the U.S. average of about 62%. Among adults in 85928, ~15% vote Democratic, ~49% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How 85928 compares
85928 sits in a sparsely populated area with few comparable zip codes nearby.
85928 runs about 48 points more Republican than Arizona as a whole.
Politics vary noticeably by block within 85928. The east side is the most Republican-leaning (R+63) and the north side is the least Republican-leaning (R+30), a spread of about 33 points.
Why 85928 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 85928, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in 85928 drive to work alone, about 13 points above the U.S. average of 74%.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; 85928, AZ sits in the top quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 85928 looks the way it does
Turnout in 85928 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.