23440 is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About more than 99% of adults in 23440 typically vote, above the U.S. average of about 62%. Among adults in 23440, ~15% vote Democratic, ~85% Republican, and ~0% don't vote. The map below shows estimated turnout by block group.
How 23440 compares
Among zip codes within 15 miles, 23440 is the most Republican-leaning.
23440 runs about 76 points more Republican than Virginia as a whole. Virginia leans Democratic overall, while 23440 is one of the few Republican-leaning pockets.
Why 23440 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 23440, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 23440, more than 99% of residents are non-Hispanic white, about 28 points above the U.S. average of 72%; about 2% of adults hold a bachelor's degree, about 26 points below the Virginia average of 29%. Rural areas vote Republican, and 23440 sits in the bottom quarter on density (fewer than 1%, in the bottom fraction of zip codes). 23440 runs against the grain of Virginia, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 23440, VA sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 23440 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 23440 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 66%, about 6 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 96% of households in 23440 own their home, about 21 points above the U.S. average of 75%. 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.