Mount Vernon leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 83% of adults in Mount Vernon typically vote, above the U.S. average of about 62%. Among adults in Mount Vernon, ~56% vote Democratic, ~27% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Mount Vernon compares
Among cities within 25 miles, Mount Vernon leans more Democratic than 78 of 192 neighbors.
Mount Vernon runs about 30 points more Democratic than Virginia as a whole.
Politics vary noticeably by neighborhood within Mount Vernon. The north side is the most Democratic-leaning (D+45) and the southeast side is the least Democratic-leaning (D+17), a spread of about 27 points.
Why Mount Vernon 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 Mount Vernon, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 64% of adults in Mount Vernon hold a bachelor's degree, about 36 points above the U.S. average of 28%. Dense areas vote Democratic, and Mount Vernon sits in the top fifth on density (about 80%, above 94% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Mount Vernon, VA sits in the top tenth nationally on this measure.
Why turnout in Mount Vernon looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Mount Vernon 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 74%, about 14 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Mount Vernon have completed high school, above 89% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Fort Belvoir, VA D+21
- Fort Hunt, VA D+38
- Franconia, VA D+46
- Belle View, VA D+44
- Jefferson Manor, VA D+50
- Huntington, VA D+57
- Alexandria, VA D+52
- Bryans Road, MD D+58
- Newington, VA D+37
Cities with Similar Populations
- Forestville, MD D+82
- Benton, LA R+58
- Skiatook, OK R+54
- Ponte Vedra Beach, FL R+29
- New Kingman-Butler, AZ R+36
- Mabank, TX R+65
- Moss Bluff, LA R+62
- Melvindale, MI Even
- Little Falls, NJ Even
- Grover Beach, CA D+10
All Local Stats
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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.