85086 leans Republican by roughly 28 points: about 36% of voters vote Democratic and 64% Republican.
About 88% of adults in 85086 typically vote, above the U.S. average of about 62%. Among adults in 85086, ~32% vote Democratic, ~56% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How 85086 compares
Among zip codes within 15 miles, 85086 leans more Republican than 15 of 16 neighbors.
85086 runs about 23 points more Republican than Arizona as a whole.
Politics vary noticeably by block within 85086. The southeast side is the most Republican-leaning (R+47) and the west side is the least Republican-leaning (R+22), a spread of about 24 points.
Why 85086 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 85086, not a ranked or complete list of what matters most.
85086 votes Republican even though it is densely developed (about 74%, far above the Arizona average of 39%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 76% of households in 85086 are family households, above 83% of zip codes.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 85086, AZ sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 85086 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 85086 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in 85086 have completed high school, above 89% 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.