23505 leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 59% of adults in 23505 typically vote, near the U.S. average of about 62%. Among adults in 23505, ~40% vote Democratic, ~19% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How 23505 compares
Among zip codes within 15 miles, 23505 leans more Democratic than 25 of 46 neighbors.
23505 runs about 30 points more Democratic than Virginia as a whole.
Politics vary noticeably by block within 23505. The east side is the most Democratic-leaning (D+54) and the southwest side is the least Democratic-leaning (D+20), a spread of about 34 points.
Why 23505 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 23505, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 91% of residents in 23505 live in densely developed areas, about 54 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 41% of adults in 23505 have never been married, above 89% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 23505, VA sits in the top tenth nationally on this measure.
Why turnout in 23505 looks the way it does
Renters vote less often than owners. About 63% of households in 23505 rent, about 38 points above the U.S. average of 25%. 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.