37043 leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 74% of adults in 37043 typically vote, above the U.S. average of about 62%. Among adults in 37043, ~25% vote Democratic, ~49% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 37043 compares
Among zip codes within 15 miles, 37043 leans more Republican than 5 of 12 neighbors.
Politically, 37043 sits close to the rest of Tennessee.
Politics vary noticeably by block within 37043. The southeast side is the most Republican-leaning (R+51) and the northwest side is the least Republican-leaning (R+20), a spread of about 32 points.
Why 37043 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 37043. The lean here lands roughly where demographic data alone would predict.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; 37043, TN sits in the top quarter nationally on this measure.
Why turnout in 37043 looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in 37043 have completed high school, about 8 points above the Tennessee average of 88%. 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.