85705 leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 44% of adults in 85705 typically vote, below the U.S. average of about 62%. Among adults in 85705, ~28% vote Democratic, ~16% Republican, and ~56% don't vote. The map below shows estimated turnout by block group.
How 85705 compares
Among zip codes within 15 miles, 85705 leans more Democratic than 20 of 33 neighbors.
85705 runs about 33 points more Democratic than Arizona as a whole. Arizona leans Republican overall, while 85705 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 85705. The southeast side is the most Democratic-leaning (D+62) and the northwest side is the least Democratic-leaning (D+8), a spread of about 54 points.
Why 85705 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 85705, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in 85705 live in densely developed areas, about 62 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 47% of adults in 85705 have never been married, above 93% of zip codes. 85705 runs against the grain of Arizona, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 85705, 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 85705 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 85705 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 44%, about 10 points below the Arizona average of 54%. Renters vote less often than owners, and about 53% of households in 85705 rent, about 28 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 27% of adults in 85705 report food insecurity, above 91% 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.