38037 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 63% of adults in 38037 typically vote, near the U.S. average of about 62%. Among adults in 38037, ~20% vote Democratic, ~43% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 38037 compares
Among zip codes within 15 miles, 38037 leans more Republican than 1 of 6 neighbors.
38037 runs about 6 points more Republican than Tennessee as a whole.
Politics vary noticeably by block within 38037. The southwest side is the most Republican-leaning (R+64) and the north side is the least Republican-leaning (R+8), a spread of about 55 points.
Why 38037 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 38037, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in 38037 drive to work alone, about 13 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and 38037 sits in the bottom quarter (about 10%, below 94% of zip codes).
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 38037, TN sits in the bottom 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 38037 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 38037 sits in the bottom 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 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.