23103 leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About more than 99% of adults in 23103 typically vote, above the U.S. average of about 62%. Among adults in 23103, ~44% vote Democratic, ~56% Republican, and ~0% don't vote. The map below shows estimated turnout by block group.
How 23103 compares
Among zip codes within 15 miles, 23103 leans more Republican than 17 of 26 neighbors.
23103 runs about 17 points more Republican than Virginia as a whole. Virginia leans Democratic overall, while 23103 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 23103. The northwest side is the most Republican-leaning (R+20) and the south side is the least Republican-leaning (R+4), a spread of about 16 points.
Why 23103 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 23103, not a ranked or complete list of what matters most.
23103 votes against the grain of Virginia. Virginia leans Democratic overall, while 23103 runs about 17 points more Republican.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 23103, 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 23103 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 23103 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 77%, about 17 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in 23103 have completed high school, above 86% 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.