86001 leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 67% of adults in 86001 typically vote, near the U.S. average of about 62%. Among adults in 86001, ~46% vote Democratic, ~21% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 86001 compares
Among zip codes within 15 miles, 86001 leans more Democratic than 3 of 4 neighbors.
86001 runs about 44 points more Democratic than Arizona as a whole. Arizona leans Republican overall, while 86001 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 86001. The east side runs the most Democratic (D+50) and the northwest side runs the most Republican (R+20), a spread of about 70 points.
Why 86001 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 86001, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 54% of adults in 86001 hold a bachelor's degree, about 25 points above the U.S. average of 28%. Dense areas vote Democratic, and 86001 sits in the top fifth on density (about 74%, above 80% of zip codes). 86001 runs against the grain of Arizona, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 86001, AZ sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 86001 looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in 86001 have completed high school, about 9 points above the Arizona average of 87%. 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.