89109 leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 49% of adults in 89109 typically vote, below the U.S. average of about 62%. Among adults in 89109, ~31% vote Democratic, ~18% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How 89109 compares
Among zip codes within 15 miles, 89109 leans more Democratic than 52 of 58 neighbors.
89109 runs about 31 points more Democratic than Nevada as a whole. Nevada leans Republican overall, while 89109 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 89109. The southeast side is the most Democratic-leaning (D+33) and the north side is the least Democratic-leaning (D+10), a spread of about 23 points.
Why 89109 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 89109, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 89109 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 89109 sits in the top quarter (about 37%, above 78% of zip codes). 89109 runs against the grain of Nevada, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 89109, NV sits in the top tenth nationally on this measure.
Why turnout in 89109 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 89109 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 67% of households in 89109 rent, about 42 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and about 84% of adults in 89109 have completed high school, below 84% 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 Nevada Secretary of State, 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.