38225 is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 74% of adults in 38225 typically vote, above the U.S. average of about 62%. Among adults in 38225, ~12% vote Democratic, ~63% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How 38225 compares
Among zip codes within 15 miles, 38225 leans more Republican than 3 of 8 neighbors.
38225 runs about 38 points more Republican than Tennessee as a whole.
Why 38225 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 38225, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 38225, about 98% of residents are non-Hispanic white, about 25 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%. Car-dependent areas vote Republican, and about 86% of residents in 38225 drive to work alone, above 89% of zip codes.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 38225, 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 38225 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 38225 sits in the bottom quarter on routine-care measures. 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.