37415 leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 71% of adults in 37415 typically vote, above the U.S. average of about 62%. Among adults in 37415, ~30% vote Democratic, ~41% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 37415 compares
Among zip codes within 15 miles, 37415 leans more Republican than 12 of 30 neighbors.
37415 runs about 14 points more Democratic than Tennessee as a whole.
Politics vary noticeably by block within 37415. The northeast side is the most split-leaning (R+29) and the southwest side is the least split-leaning (Even), a spread of about 28 points.
Why 37415 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 37415, not a ranked or complete list of what matters most.
37415 votes Republican even though it is densely developed (about 74%, far above the Tennessee average of 21%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 37415, 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 37415 looks the way it does
Turnout in 37415 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.