Markham leans Republican by roughly 28 points: about 36% of voters vote Democratic and 64% Republican.
About 82% of adults in Markham typically vote, above the U.S. average of about 62%. Among adults in Markham, ~30% vote Democratic, ~52% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Markham compares
Among cities within 25 miles, Markham leans more Republican than 57 of 87 neighbors.
Markham runs about 33 points more Republican than Virginia as a whole. Virginia leans Democratic overall, while Markham is one of the few Republican-leaning pockets.
Why Markham leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Markham, not a ranked or complete list of what matters most.
Markham votes against the grain of Virginia. Virginia leans Democratic overall, while Markham runs about 33 points more Republican. A high family-household share predicts Republican voting, and about 77% of households in Markham are family households, above 83% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Markham, 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 Markham looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Markham 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 75%, about 15 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Delaplane, VA R+28
- Hume, VA R+26
- Linden, VA R+33
- Happy Creek, VA R+24
- Chester Gap, VA R+22
- Marshall, VA R+20
- Rectortown, VA R+26
- Huntly, VA R+23
- Milldale, VA R+32
- Orlean, VA R+20
Cities with Similar Populations
- Zebulon, KY R+68
- Groos, MI R+34
- Lightwood, AL R+79
- Solon, MI R+5
- Montevallo, MO R+73
- Somerset, KS R+48
- Wonnie, KY R+64
- Pittsburg, IN R+57
- Lanagan, MO R+69
- St. Marie, MT R+62
All Local Stats
Home Services
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.