Countryside leans Democratic by roughly 22 points: about 61% of voters vote Democratic and 39% Republican.
About 85% of adults in Countryside typically vote, above the U.S. average of about 62%. Among adults in Countryside, ~52% vote Democratic, ~33% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Countryside compares
Among cities within 25 miles, Countryside leans more Democratic than 67 of 158 neighbors.
Countryside runs about 16 points more Democratic than Virginia as a whole.
Why Countryside 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 Countryside, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 60% of adults in Countryside hold a bachelor's degree, about 32 points above the U.S. average of 28%. Dense areas vote Democratic, and Countryside sits in the top fifth on density (about 78%, above 94% of cities).
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Countryside, VA sits in the top 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 Countryside looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Countryside 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 76%, about 16 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Cascades, VA D+28
- Dulles Town Center, VA D+26
- Sterling, VA D+23
- Lowes Island, VA D+20
- Sugarland, MD D+13
- Dranesville, VA D+32
- Ashburn, VA D+23
- Lansdowne, VA D+23
- Broadlands, VA D+21
- Poolesville, MD D+12
Cities with Similar Populations
- Earlimart, CA D+4
- Mineola, TX R+60
- Union Park, FL D+5
- Warr Acres, OK D+3
- Independence, KS R+36
- Port Salerno, FL R+19
- Westlake, LA R+58
- Santa Teresa, NM R+4
- Maxton, NC R+11
- Middlefield, OH R+53
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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.