37206 is a Democratic stronghold. About 76% of voters here vote Democratic and 24% Republican.
About 64% of adults in 37206 typically vote, near the U.S. average of about 62%. Among adults in 37206, ~49% vote Democratic, ~15% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How 37206 compares
Among zip codes within 15 miles, 37206 leans more Democratic than 25 of 31 neighbors.
37206 runs about 81 points more Democratic than Tennessee as a whole. Tennessee leans Republican overall, while 37206 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 37206. The southwest side is the most Democratic-leaning (D+66) and the east side is the least Democratic-leaning (D+34), a spread of about 31 points.
Why 37206 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 37206, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 60% of adults in 37206 hold a bachelor's degree, about 31 points above the U.S. average of 28%. Dense areas vote Democratic, and 37206 sits in the top fifth on density (about 96%, above 92% of zip codes). 37206 runs against the grain of Tennessee, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 37206, TN sits in the top tenth nationally on this measure.
Why turnout in 37206 looks the way it does
Turnout in 37206 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.