86034 is a Democratic stronghold. About 81% of voters here vote Democratic and 19% Republican.
About 63% of adults in 86034 typically vote, near the U.S. average of about 62%. Among adults in 86034, ~51% vote Democratic, ~12% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 86034 compares
86034 runs about 67 points more Democratic than Arizona as a whole. Arizona leans Republican overall, while 86034 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 86034. The southwest side is the most Democratic-leaning (D+68) and the south side is the least Democratic-leaning (D+55), a spread of about 13 points.
Why 86034 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 86034, not a ranked or complete list of what matters most.
86034 votes against the grain of Arizona. Arizona leans Republican overall, while 86034 runs about 67 points more Democratic. A high never-married share predicts Democratic voting, and about 55% of adults in 86034 have never been married, above 97% of zip codes.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 86034, AZ sits in the bottom tenth 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 86034 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 86034 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 40%, about 14 points below the Arizona average of 54%. 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.