Cumberland County is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 75% of adults in Cumberland County typically vote, above the U.S. average of about 62%. Among adults in Cumberland County, ~17% vote Democratic, ~58% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Cumberland County compares
Among counties within 50 miles, Cumberland County leans more Republican than 3 of 20 neighbors.
Cumberland County runs about 27 points more Republican than Tennessee as a whole.
Politics vary noticeably by city within Cumberland County. The southeast side is the most Republican-leaning (R+67) and the northeast side is the least Republican-leaning (R+45), a spread of about 22 points.
Why Cumberland County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Cumberland County, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Cumberland County, about 93% of residents are non-Hispanic white, about 21 points above the U.S. average of 72%; about 18% of adults hold a bachelor's degree, about 10 points below the U.S. average of 28%.
Never-married share and voter turnout
Places with a low never-married share tend to turn out at a higher rate; Cumberland County, TN sits in the bottom tenth nationally on this measure.
Why turnout in Cumberland County looks the way it does
Turnout in Cumberland County 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 Counties
- Bledsoe County, TN R+66
- Morgan County, TN R+70
- White County, TN R+66
- Rhea County, TN R+63
- Roane County, TN R+57
- Fentress County, TN R+68
- Van Buren County, TN R+71
- Putnam County, TN R+43
- Overton County, TN R+67
- Meigs County, TN R+72
Counties with Similar Populations
- Granville County, NC R+7
- Washington County, NY R+23
- Tipton County, TN R+47
- St. Joseph County, MI R+35
- Columbia County, NY D+12
- Hood County, TX R+61
- Garfield County, CO R+5
- Rutland County, VT R+9
- Pittsylvania County, VA R+39
- Livingston County, NY R+19
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.