24121 leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 92% of adults in 24121 typically vote, above the U.S. average of about 62%. Among adults in 24121, ~26% vote Democratic, ~66% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.
How 24121 compares
Among zip codes within 15 miles, 24121 leans more Republican than 6 of 12 neighbors.
24121 runs about 49 points more Republican than Virginia as a whole. Virginia leans Democratic overall, while 24121 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 24121. The north side is the most Republican-leaning (R+62) and the southeast side is the least Republican-leaning (R+28), a spread of about 34 points.
Why 24121 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 24121, not a ranked or complete list of what matters most.
24121 votes against the grain of Virginia. Virginia leans Democratic overall, while 24121 runs about 49 points more Republican.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 24121, VA sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 24121 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 24121 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 71%, about 11 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 89% of households in 24121 own their home, above 84% 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.