84107 leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 56% of adults in 84107 typically vote, below the U.S. average of about 62%. Among adults in 84107, ~35% vote Democratic, ~21% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How 84107 compares
Among zip codes within 15 miles, 84107 leans more Democratic than 25 of 42 neighbors.
84107 runs about 46 points more Democratic than Utah as a whole. Utah leans Republican overall, while 84107 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 84107. The northwest side is the most Democratic-leaning (D+36) and the southwest side is the least Democratic-leaning (D+9), a spread of about 27 points.
Why 84107 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 84107, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 84107 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 84107 sits in the top quarter (about 38%, above 79% of zip codes). 84107 runs against the grain of Utah, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 84107, UT sits in the top tenth 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 84107 looks the way it does
Renters vote less often than owners. About 54% of households in 84107 rent, about 29 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and 84107 sits in the top quarter on routine-care measures. 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.