Cannon County is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 70% of adults in Cannon County typically vote, above the U.S. average of about 62%. Among adults in Cannon County, ~11% vote Democratic, ~59% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Cannon County compares
Among counties within 50 miles, Cannon County leans more Republican than 19 of 21 neighbors.
Cannon County runs about 39 points more Republican than Tennessee as a whole.
Politics vary noticeably by city within Cannon County. The south side is the most Republican-leaning (R+75) and the northeast side is the least Republican-leaning (R+63), a spread of about 12 points.
Why Cannon 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 Cannon County, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 10% of residents in Cannon County live in densely developed areas, about 12 points below the Tennessee average of 21%. A high white share with below-average college attainment predicts Republican voting, and Cannon County fits that profile on both counts.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Cannon County, TN sits in the bottom tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Cannon County looks the way it does
Turnout in Cannon County sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Warren County, TN R+62
- DeKalb County, TN R+63
- Rutherford County, TN R+16
- Coffee County, TN R+55
- Bedford County, TN R+51
- Smith County, TN R+64
- White County, TN R+66
- Wilson County, TN R+39
- Van Buren County, TN R+71
- Grundy County, TN R+68
Counties with Similar Populations
- Jefferson County, FL R+20
- San Juan County, UT R+19
- Moultrie County, IL R+54
- Mills County, IA R+33
- Harrison County, OH R+56
- Carbon County, WY R+57
- Clay County, AR R+62
- Las Animas County, CO R+13
- Fulton County, PA R+70
- Livingston County, MO R+52
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.