37828 leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 94% of adults in 37828 typically vote, above the U.S. average of about 62%. Among adults in 37828, ~27% vote Democratic, ~67% Republican, and ~6% don't vote. The map below shows estimated turnout by block group.
How 37828 compares
Among zip codes within 15 miles, 37828 leans more Republican than 2 of 14 neighbors.
37828 runs about 12 points more Republican than Tennessee as a whole.
Politics vary noticeably by block within 37828. The east side is the most Republican-leaning (R+55) and the north side is the least Republican-leaning (R+41), a spread of about 15 points.
Why 37828 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 37828. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 37828, TN sits above the national average on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 37828 looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in 37828 have completed high school, about 10 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.