38391 is a true toss-up. About 49% of voters here vote Democratic and 51% Republican.
About 58% of adults in 38391 typically vote, near the U.S. average of about 62%. Among adults in 38391, ~29% vote Democratic, ~30% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How 38391 compares
Among zip codes within 15 miles, 38391 sits roughly in the middle of the political spectrum, with 1 neighbors leaning further in the place's direction and 6 leaning the other way.
38391 runs about 27 points more Democratic than Tennessee as a whole.
Politics vary noticeably by block within 38391. The southwest side runs the most Democratic (D+26) and the northeast side runs the most Republican (R+41), a spread of about 68 points.
Why 38391 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 38391. The lean here lands roughly where demographic data alone would predict.
Population density and Republican lean
Places with low population density tend to lean Republican; 38391, TN sits in the bottom quarter nationally on this measure.
Why turnout in 38391 looks the way it does
Areas with low high-school completion turn out at lower rates. About 81% of adults in 38391 have completed high school, about 9 points below the U.S. average of 90%. 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.