Rockdale is a Republican stronghold. About 14% of voters here vote Democratic and 86% Republican.
About 66% of adults in Rockdale typically vote, near the U.S. average of about 62%. Among adults in Rockdale, ~9% vote Democratic, ~57% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How Rockdale compares
Among cities within 25 miles, Rockdale leans more Republican than 51 of 71 neighbors.
Rockdale runs about 42 points more Republican than Tennessee as a whole.
Politics vary noticeably by neighborhood within Rockdale. The southeast side is the most Republican-leaning (R+76) and the north side is the least Republican-leaning (R+64), a spread of about 12 points.
Why Rockdale 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 Rockdale, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 82% of households in Rockdale are family households, about 16 points above the U.S. average of 67%.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Rockdale, TN sits in the top quarter nationally on this measure.
Why turnout in Rockdale looks the way it does
Homeowners vote more often than renters. About 91% of households in Rockdale own their home, about 13 points above the Tennessee average of 77%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Sandy Hook, TN R+68
- Summertown, TN R+74
- Three Oaks, TN R+76
- Screamer, TN R+70
- Mount Pleasant, TN R+52
- Mount Joy, TN R+69
- Southport, TN R+34
- Ethridge, TN R+74
- Rich, TN R+70
- Henryville, TN R+75
Cities with Similar Populations
- Long View, KY R+46
- Childress, VA R+55
- Trenary, MI R+27
- Hotevilla, AZ D+58
- Grapeville, PA R+22
- Oldport, MI R+37
- South Milford, IN R+55
- Barclay, MD R+52
- Steubenville, IN R+55
- Wise Forks, NC R+40
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.