Erin is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 62% of adults in Erin typically vote, near the U.S. average of about 62%. Among adults in Erin, ~11% vote Democratic, ~51% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How Erin compares
Among cities within 25 miles, Erin leans more Republican than 10 of 53 neighbors.
Erin runs about 34 points more Republican than Tennessee as a whole.
Why Erin leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Erin, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 16% of adults in Erin hold a bachelor's degree, about 6 points below the Tennessee average of 22%.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Erin, TN sits below the national average on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Erin looks the way it does
Turnout in Erin 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 Cities
- Pollard, TN R+65
- Woolworth, TN R+67
- Cumberland City, TN R+63
- Tennessee Ridge, TN R+63
- Ellis Mills, TN R+67
- Carlisle, TN R+67
- Silvertop, TN R+67
- Throckmorton, TN R+68
- Slayden, TN R+66
- Needmore, TN R+65
Cities with Similar Populations
- Onaway, MI R+40
- L'Anse, MI R+17
- Port Hadlock-Irondale, WA D+22
- Wadesville, IN R+52
- Jasonville, IN R+58
- Corbett, OR R+3
- Keenesburg, CO R+61
- Andover, OH R+52
- Port Murray, NJ R+22
- Astatula, FL R+51
All Local Stats
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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.