84604 leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 62% of adults in 84604 typically vote, near the U.S. average of about 62%. Among adults in 84604, ~25% vote Democratic, ~37% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How 84604 compares
Among zip codes within 15 miles, 84604 leans more Republican than 2 of 16 neighbors.
84604 runs about 4 points more Democratic than Utah as a whole.
Politics vary noticeably by block within 84604. The southeast side runs the most Democratic (Even) and the northwest side runs the most Republican (R+31), a spread of about 31 points.
Why 84604 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 84604, not a ranked or complete list of what matters most.
84604 votes Republican even though it is densely developed (about 90%, far above the Utah average of 32%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Homeownership and voter turnout
Places with renter-heavy households tend to turn out at a lower rate; 84604, UT sits in the bottom tenth nationally on this measure.
Why turnout in 84604 looks the way it does
Renters vote less often than owners. About 51% of households in 84604 rent, about 26 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 6% of homes in 84604 have more than one occupant per room, above 90% 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 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.