Marietta leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 61% of adults in Marietta typically vote, near the U.S. average of about 62%. Among adults in Marietta, ~23% vote Democratic, ~39% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How Marietta compares
Among cities within 25 miles, Marietta leans more Republican than 30 of 56 neighbors.
Marietta runs about 23 points more Republican than North Carolina as a whole.
Politics vary noticeably by neighborhood within Marietta. The northeast side is the most Republican-leaning (R+63) and the north side is the least Republican-leaning (R+10), a spread of about 53 points.
Why Marietta 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 Marietta, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in Marietta hold a bachelor's degree, about 16 points below the North Carolina average of 27%.
Food insecurity and voter turnout
Places with high food insecurity tend to turn out at a lower rate; Marietta, NC sits in the top tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in Marietta looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Marietta is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 49%, about 11 points below the North Carolina average of 61%. High food insecurity lines up with lower turnout, and about 28% of adults in Marietta report food insecurity, above 94% of cities. Low high-school completion lines up with lower turnout, and about 80% of adults in Marietta have completed high school, below 90% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lake View, SC R+20
- Fairmont, NC Even
- Proctorville, NC R+33
- Kemper, SC R+22
- Orrum, NC R+42
- Fair Bluff, NC Even
- Hinson Crossroads, NC R+40
- Echo, NC R+18
- McDonald, NC R+32
- Fork, SC R+50
Cities with Similar Populations
- Lyman, WA R+30
- Hollister, FL R+71
- Roggen, CO R+68
- Eckford, MI R+50
- Glenwood, IN R+67
- March ARB, CA Even
- Union Grove, TN R+67
- Ponemah, MN D+71
- Brush Creek, TN R+67
- Flingsville, KY R+60
Sources and methodology
Precinct-level voting records used to fit the model come from North Carolina State Board 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.