85027 leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 59% of adults in 85027 typically vote, near the U.S. average of about 62%. Among adults in 85027, ~27% vote Democratic, ~32% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How 85027 compares
Among zip codes within 15 miles, 85027 leans more Republican than 38 of 54 neighbors.
85027 runs about 4 points more Republican than Arizona as a whole.
Politics vary noticeably by block within 85027. The west side runs the most Democratic (D+4) and the northeast side runs the most Republican (R+21), a spread of about 25 points.
Why 85027 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 85027, not a ranked or complete list of what matters most.
85027 votes Republican even though it is densely developed (about 97%, far above the Arizona average of 39%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Never-married share, developed land, and voter turnout
Places that combine a never-married-heavy adult population and a heavily developed built environment tend to turn out at a lower rate, as 85027, AZ does.
Why turnout in 85027 looks the way it does
Renters vote less often than owners. About 41% of households in 85027 rent, about 16 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 5% of homes in 85027 have more than one occupant per room, above 85% 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.