22042 leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 65% of adults in 22042 typically vote, near the U.S. average of about 62%. Among adults in 22042, ~47% vote Democratic, ~18% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How 22042 compares
Among zip codes within 15 miles, 22042 leans more Democratic than 40 of 119 neighbors.
22042 runs about 38 points more Democratic than Virginia as a whole.
Politics vary noticeably by block within 22042. The northeast side is the most Democratic-leaning (D+50) and the southeast side is the least Democratic-leaning (D+33), a spread of about 17 points.
Why 22042 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 22042, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 96% of residents in 22042 live in densely developed areas, about 60 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 22042 sits in the top quarter (about 53%, above 91% of zip codes). A high never-married share predicts Democratic voting, and about 37% of adults in 22042 have never been married, above 83% of zip codes.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; 22042, VA sits in the top tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 22042 looks the way it does
Turnout in 22042 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.