Sudley leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 50% of adults in Sudley typically vote, below the U.S. average of about 62%. Among adults in Sudley, ~30% vote Democratic, ~20% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How Sudley compares
Among cities within 25 miles, Sudley leans more Democratic than 54 of 134 neighbors.
Sudley runs about 12 points more Democratic than Virginia as a whole.
Politics vary noticeably by neighborhood within Sudley. The northwest side is the most Democratic-leaning (D+26) and the east side is the least Democratic-leaning (D+3), a spread of about 23 points.
Why Sudley 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 Sudley, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 94% of residents in Sudley live in densely developed areas, about 58 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 38% of adults in Sudley have never been married, above 92% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Sudley, VA sits in the top tenth nationally on this measure.
Why turnout in Sudley looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Sudley is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 38% of households in Sudley rent, above 93% of cities. High food insecurity lines up with lower turnout, and about 20% of adults in Sudley report food insecurity, above 81% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Bull Run, VA D+25
- Yorkshire, VA D+12
- Manassas Park, VA D+19
- Manassas, VA D+10
- Buckhall, VA D+5
- Centreville, VA D+26
- Linton Hall, VA D+9
- Clifton, VA D+19
- Bristow, VA R+23
Cities with Similar Populations
- Charlestown, MA D+53
- Chino Valley, AZ R+42
- Center Point, AL D+67
- Paradise Valley, AZ R+15
- Northfield, OH R+6
- Haughton, LA R+55
- Sherrelwood, CO D+22
- Oxford, AL R+37
- East Falmouth, MA D+16
- Clinton, NC R+9
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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.