37132 leans heavily Democratic by roughly 48 points: about 74% of voters vote Democratic and 26% Republican.
About 44% of adults in 37132 typically vote, below the U.S. average of about 62%. Among adults in 37132, ~33% vote Democratic, ~11% Republican, and ~56% don't vote. The map below shows estimated turnout by block group.
How 37132 compares
Among zip codes within 15 miles, 37132 is the most Democratic-leaning.
37132 runs about 77 points more Democratic than Tennessee as a whole. Tennessee leans Republican overall, while 37132 is one of the few Democratic-leaning pockets.
Why 37132 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 37132, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 37132 live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and more than 99% of adults in 37132 have never been married, in the top fraction of zip codes. 37132 runs against the grain of Tennessee, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 37132, TN sits in the top quarter nationally on this measure.
Why turnout in 37132 looks the way it does
Areas with low high-school completion turn out at lower rates. More than 99% of adults in 37132 have completed high school, about 10 points above the U.S. average of 90%. High-crime urban areas turn out at lower rates, and 37132 sits in the top 15% on a violent-crime measure. 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 Tennessee Secretary of State, Division of 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.