37337 is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 57% of adults in 37337 typically vote, near the U.S. average of about 62%. Among adults in 37337, ~9% vote Democratic, ~48% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How 37337 compares
Among zip codes within 15 miles, 37337 leans more Republican than 4 of 7 neighbors.
37337 runs about 38 points more Republican than Tennessee as a whole.
Why 37337 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 37337, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 37337, about 96% of residents are non-Hispanic white, about 24 points above the U.S. average of 72%; about 15% of adults hold a bachelor's degree, about 7 points below the Tennessee average of 22%.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 37337, TN sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 37337 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 37337 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Low high-school completion lines up with lower turnout, and about 82% of adults in 37337 have completed high school, below 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 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.