28139 leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 77% of adults in 28139 typically vote, above the U.S. average of about 62%. Among adults in 28139, ~20% vote Democratic, ~57% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 28139 compares
Among zip codes within 15 miles, 28139 leans more Republican than 5 of 12 neighbors.
28139 runs about 45 points more Republican than North Carolina as a whole.
Politics vary noticeably by block within 28139. The northeast side is the most Republican-leaning (R+59) and the east side is the least Republican-leaning (R+35), a spread of about 25 points.
Why 28139 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 28139. The lean here lands roughly where demographic data alone would predict.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 28139, NC sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 28139 looks the way it does
Turnout in 28139 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 Zip Codes
Zip Codes with Similar Populations
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.