23320 leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 78% of adults in 23320 typically vote, above the U.S. average of about 62%. Among adults in 23320, ~46% vote Democratic, ~32% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How 23320 compares
Among zip codes within 15 miles, 23320 leans more Democratic than 15 of 38 neighbors.
23320 runs about 12 points more Democratic than Virginia as a whole.
Politics vary noticeably by block within 23320. The west side is the most Democratic-leaning (D+48) and the southeast side is the least Democratic-leaning (D+2), a spread of about 46 points.
Why 23320 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 23320, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 23320 is about 49%, about 24 points below the U.S. average of 72%. High college attainment predicts Democratic voting, and 23320 sits in the top quarter (about 38%, above 79% of zip codes).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 23320, VA sits in the top quarter 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 23320 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 23320 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 68%, about 8 points above the U.S. average of 60%. 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 Virginia Department 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.