20110 leans slightly Democratic by roughly 14 points: about 57% of voters vote Democratic and 43% Republican.
About 67% of adults in 20110 typically vote, near the U.S. average of about 62%. Among adults in 20110, ~38% vote Democratic, ~29% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 20110 compares
Among zip codes within 15 miles, 20110 leans more Democratic than 11 of 38 neighbors.
20110 runs about 8 points more Democratic than Virginia as a whole.
Why 20110 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 20110, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 97% of residents in 20110 live in densely developed areas, about 61 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 34% of adults in 20110 have never been married, above 77% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 20110, VA sits in the top tenth nationally on this measure.
Why turnout in 20110 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 20110 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.