27603 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 79% of adults in 27603 typically vote, above the U.S. average of about 62%. Among adults in 27603, ~47% vote Democratic, ~32% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How 27603 compares
Among zip codes within 15 miles, 27603 leans more Democratic than 10 of 27 neighbors.
27603 runs about 23 points more Democratic than North Carolina as a whole. North Carolina leans Republican overall, while 27603 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 27603. The north side runs the most Democratic (D+60) and the southeast side runs the most Republican (R+12), a spread of about 72 points.
Why 27603 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 27603, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 50% of adults in 27603 hold a bachelor's degree, about 22 points above the U.S. average of 28%. Density combined with diversity predicts Democratic voting, and non-Hispanic white share in 27603 is about 59%, below 78% of zip codes. A high never-married share predicts Democratic voting, and about 39% of adults in 27603 have never been married, above 87% of zip codes.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 27603, NC sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 27603 looks the way it does
Turnout in 27603 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.