84520 is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 48% of adults in 84520 typically vote, below the U.S. average of about 62%. Among adults in 84520, ~8% vote Democratic, ~40% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.
How 84520 compares
84520 runs about 46 points more Republican than Utah as a whole.
Why 84520 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 84520, not a ranked or complete list of what matters most.
Rural areas vote Republican. Fewer than 1% of residents in 84520 live in densely developed areas, about 31 points below the Utah average of 32%. Low college attainment predicts Republican voting, and 84520 sits in the bottom quarter (about 11%, below 92% of zip codes).
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 84520, UT sits in the bottom quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 84520 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 84520 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Low high-school completion lines up with lower turnout, and about 87% of adults in 84520 have completed high school, below 75% of zip codes. High-crime urban areas turn out at lower rates, and 84520 sits in the top 15% on a violent-crime measure. 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 Utah Lieutenant Governor's Office, 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.