86020 is a Democratic stronghold. About 75% of voters here vote Democratic and 25% Republican.
About 58% of adults in 86020 typically vote, near the U.S. average of about 62%. Among adults in 86020, ~44% vote Democratic, ~14% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How 86020 compares
86020 runs about 56 points more Democratic than Arizona as a whole. Arizona leans Republican overall, while 86020 is one of the few Democratic-leaning pockets.
Why 86020 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 86020, not a ranked or complete list of what matters most.
86020 votes against the grain of Arizona. Arizona leans Republican overall, while 86020 runs about 56 points more Democratic. A high never-married share predicts Democratic voting, and about 55% of adults in 86020 have never been married, above 97% of zip codes.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 86020, 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 86020 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 86020 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 37%, about 17 points below the Arizona average of 54%. High food insecurity lines up with lower turnout, and about 45% of adults in 86020 report food insecurity, in the top fraction of zip codes. Low high-school completion lines up with lower turnout, and about 70% of adults in 86020 have completed high school, below 98% 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.