85345 is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.
About 58% of adults in 85345 typically vote, near the U.S. average of about 62%. Among adults in 85345, ~28% vote Democratic, ~30% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How 85345 compares
Among zip codes within 15 miles, 85345 leans more Republican than 37 of 60 neighbors.
Politically, 85345 sits close to the rest of Arizona.
Politics vary noticeably by block within 85345. The southeast side runs the most Democratic (D+11) and the southwest side runs the most Republican (R+10), a spread of about 20 points.
Why 85345 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 85345. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 85345, AZ sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 85345 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 85345 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Crowded housing lines up with lower turnout, and about 4% of homes in 85345 have more than one occupant per room, above 82% of zip codes. 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.