84075 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 83% of adults in 84075 typically vote, above the U.S. average of about 62%. Among adults in 84075, ~26% vote Democratic, ~57% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How 84075 compares
Among zip codes within 15 miles, 84075 leans more Republican than 13 of 14 neighbors.
84075 runs about 17 points more Republican than Utah as a whole.
Politics vary noticeably by block within 84075. The southwest side is the most Republican-leaning (R+42) and the northeast side is the least Republican-leaning (R+30), a spread of about 12 points.
Why 84075 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 84075, not a ranked or complete list of what matters most.
84075 votes Republican even though it is densely developed (about 81%, far above the Utah average of 32%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 88% of households in 84075 are family households, in the top fraction of zip codes.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 84075, UT sits in the top quarter nationally on this measure.
Why turnout in 84075 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 84075 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 74%, about 14 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 89% of households in 84075 own their home, compared to around 71% in nearby zip codes. High high-school completion lines up with higher turnout, and about 96% of adults in 84075 have completed high school, 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 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.