28403 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 70% of adults in 28403 typically vote, above the U.S. average of about 62%. Among adults in 28403, ~42% vote Democratic, ~28% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 28403 compares
Among zip codes within 15 miles, 28403 leans more Democratic than 10 of 11 neighbors.
28403 runs about 22 points more Democratic than North Carolina as a whole. North Carolina leans Republican overall, while 28403 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 28403. The northwest side runs the most Democratic (D+38) and the southwest side runs the most Republican (Even), a spread of about 39 points.
Why 28403 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 28403, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 90% of residents in 28403 live in densely developed areas, about 53 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 28403 sits in the top quarter (about 45%, above 85% of zip codes). A high never-married share predicts Democratic voting, and about 54% of adults in 28403 have never been married, above 97% of zip codes.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 28403, NC sits in the top 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 28403 looks the way it does
Turnout in 28403 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.