Supply leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 84% of adults in Supply typically vote, above the U.S. average of about 62%. Among adults in Supply, ~24% vote Democratic, ~59% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Supply compares
Among cities within 25 miles, Supply leans more Republican than 33 of 42 neighbors.
Supply runs about 40 points more Republican than North Carolina as a whole.
Politics vary noticeably by neighborhood within Supply. The southeast side is the most Republican-leaning (R+51) and the north side is the least Republican-leaning (R+35), a spread of about 16 points.
Why Supply 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 Supply, not a ranked or complete list of what matters most.
Supply votes Republican even though it is densely developed (about 43%, well above the North Carolina average of 27%). Here an older population outweighs the Democratic lean that density usually predicts.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Supply, NC sits in the top quarter nationally on this measure.
Why turnout in Supply looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Supply is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 62%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Holden Beach, NC R+37
- Varnamtown, NC R+50
- Lennon Crossroads, NC R+35
- Shallotte, NC R+40
- Varnum, NC R+30
- Bolivia, NC R+34
- Piney Grove, NC R+18
- Ocean Isle Beach, NC R+36
- Oak Island, NC R+30
- Grissettown, NC R+40
Cities with Similar Populations
- White Marsh, MD D+8
- Kodak, TN R+63
- Airway Heights, WA R+16
- Gloucester Point, VA R+33
- Linthicum, MD D+3
- Elwood, IN R+43
- Alden, NY R+29
- Lake Arbor, MD D+87
- Rising Sun, MD R+48
- McGregor, TX R+41
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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.