22101 leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.
About 93% of adults in 22101 typically vote, above the U.S. average of about 62%. Among adults in 22101, ~65% vote Democratic, ~28% Republican, and ~7% don't vote. The map below shows estimated turnout by block group.
How 22101 compares
Among zip codes within 15 miles, 22101 leans more Democratic than 26 of 126 neighbors.
22101 runs about 34 points more Democratic than Virginia as a whole.
Why 22101 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 22101, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 86% of adults in 22101 hold a bachelor's degree, about 57 points above the U.S. average of 28%. Dense areas vote Democratic, and 22101 sits in the top fifth on density (about 90%, above 88% of zip codes).
Population density and Democratic lean
Places with high population density tend to lean Democratic; 22101, VA sits in the top quarter nationally on this measure.
Why turnout in 22101 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 22101 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 81%, about 21 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in 22101 have completed high school, above 90% of zip codes. 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.