84020 leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 79% of adults in 84020 typically vote, above the U.S. average of about 62%. Among adults in 84020, ~35% vote Democratic, ~44% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How 84020 compares
Among zip codes within 15 miles, 84020 leans more Republican than 21 of 32 neighbors.
84020 runs about 9 points more Democratic than Utah as a whole.
Politics vary noticeably by block within 84020. The southwest side runs the most Democratic (Even) and the east side runs the most Republican (R+24), a spread of about 25 points.
Why 84020 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 84020, not a ranked or complete list of what matters most.
84020 votes Republican even though it is densely developed (about 79%, 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 77% of households in 84020 are family households, above 85% of zip codes.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 84020, UT sits in the top 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 84020 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 84020 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 75%, about 15 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in 84020 have completed high school, above 87% 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.