Cosby, TN Political Map | Democrat & Republican Areas in Cosby

By the BestNeighborhood data science team. Last updated May 2026.

Cosby is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.

 

About 61% of adults in Cosby typically vote, near the U.S. average of about 62%. Among adults in Cosby, ~10% vote Democratic, ~51% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.

How Cosby compares

Among cities within 25 miles, Cosby leans more Republican than 37 of 51 neighbors.

Cosby runs about 39 points more Republican than Tennessee as a whole.

Why Cosby leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Cosby. The lean here lands roughly where demographic data alone would predict.

Walkability and Republican lean

Places with a low walkability score tend to lean Republican; Cosby, TN sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Cosby looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Cosby is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Low high-school completion lines up with lower turnout, and about 87% of adults in Cosby have completed high school, below 73% of cities. Learn more about the findings and methodology on the political spectrum map.

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.