38363 is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 66% of adults in 38363 typically vote, near the U.S. average of about 62%. Among adults in 38363, ~10% vote Democratic, ~56% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How 38363 compares
Among zip codes within 15 miles, 38363 is the least Republican-leaning.
38363 runs about 37 points more Republican than Tennessee as a whole.
Politics vary noticeably by block within 38363. The southeast side is the most Republican-leaning (R+74) and the south side is the least Republican-leaning (R+59), a spread of about 15 points.
Why 38363 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 38363, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 13% of adults in 38363 hold a bachelor's degree, about 9 points below the Tennessee average of 22%. Car-dependent areas vote Republican, and about 83% of residents in 38363 drive to work alone, above 82% of zip codes.
High-school completion and voter turnout
Places with low high-school-completion share tend to turn out at a lower rate; 38363, TN sits in the bottom tenth nationally on this measure.
Why turnout in 38363 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 38363 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.