84331 is a Republican stronghold. About 11% of voters here vote Democratic and 89% Republican.
About 61% of adults in 84331 typically vote, near the U.S. average of about 62%. Among adults in 84331, ~7% vote Democratic, ~54% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 84331 compares
Among zip codes within 15 miles, 84331 leans more Republican than 6 of 8 neighbors.
84331 runs about 56 points more Republican than Utah as a whole.
Why 84331 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 84331, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 3% of residents in 84331 live in densely developed areas, about 29 points below the Utah average of 32%. A high family-household share predicts Republican voting, and about 76% of households in 84331 are family households, above 83% of zip codes.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 84331, 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 84331 looks the way it does
Turnout in 84331 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.