37345 is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About 66% of adults in 37345 typically vote, near the U.S. average of about 62%. Among adults in 37345, ~10% vote Democratic, ~56% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How 37345 compares
Among zip codes within 15 miles, 37345 leans more Republican than 1 of 8 neighbors.
37345 runs about 40 points more Republican than Tennessee as a whole.
Why 37345 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 37345, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 90% of residents in 37345 drive to work alone, about 16 points above the U.S. average of 74%. A high white share with below-average college attainment predicts Republican voting, and 37345 fits that profile on both counts.
Never-married share and voter turnout
Places with a low never-married share tend to turn out at a higher rate; 37345, TN sits below the national average on this measure.
Why turnout in 37345 looks the way it does
Turnout in 37345 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.