Sulphur Springs is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About 57% of adults in Sulphur Springs typically vote, near the U.S. average of about 62%. Among adults in Sulphur Springs, ~9% vote Democratic, ~48% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How Sulphur Springs compares
Among cities within 25 miles, Sulphur Springs leans more Republican than 55 of 78 neighbors.
Sulphur Springs runs about 39 points more Republican than Tennessee as a whole.
Why Sulphur Springs 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 Sulphur Springs, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Sulphur Springs, about 98% of residents are non-Hispanic white, about 26 points above the U.S. average of 72%; about 17% of adults hold a bachelor's degree, about 5 points below the Tennessee average of 22%. Rural areas vote Republican, and Sulphur Springs sits in the bottom quarter on density (about 5%, below 78% of cities). A high family-household share predicts Republican voting, and about 84% of households in Sulphur Springs are family households, above 96% of cities.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Sulphur Springs, TN sits below the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Sulphur Springs looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Sulphur Springs is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Powells Crossroads, TN R+71
- Timberlinks, TN R+41
- Whitwell, TN R+70
- Shirleyton, TN R+71
- Signal Mountain, TN R+28
- Lone Oak, TN R+71
- Walden, TN R+31
- Guild, TN R+52
- Jasper, TN R+62
- Red Bank, TN R+7
Cities with Similar Populations
- Frakes, KY R+82
- Abercrombie, ND R+43
- Blissfield, OH R+64
- Duck, WV R+60
- Walcksville, PA R+38
- Maxim, GA R+64
- North Litchfield Beach, SC R+37
- Dalton, AR R+72
- Gallina, NM D+17
- Wheeler, WA R+49
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.