Rock Spring leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 91% of adults in Rock Spring typically vote, above the U.S. average of about 62%. Among adults in Rock Spring, ~66% vote Democratic, ~25% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How Rock Spring compares
Among neighborhoods within 5 miles, Rock Spring leans more Democratic than 4 of 34 neighbors.
Rock Spring runs about 38 points more Democratic than Virginia as a whole.
Politics vary noticeably by block within Rock Spring. The south side is the most Democratic-leaning (D+48) and the northeast side is the least Democratic-leaning (D+37), a spread of about 11 points.
Why Rock Spring leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Rock Spring, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 84% of adults in Rock Spring hold a bachelor's degree, about 56 points above the U.S. average of 28%.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; Rock Spring, Arlington, VA sits in the top quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Rock Spring looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Rock Spring 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 80%, about 20 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 93% of households in Rock Spring own their home, compared to around 63% in nearby neighborhoods. High high-school completion lines up with higher turnout, and more than 99% of adults in Rock Spring have completed high school, above 95% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Williamsburg, Arlington, VA D+53
- Arlington-East Falls, Arlington, VA D+57
- Waverly Hills, Arlington, VA D+49
- Donaldson Run, Arlington, VA D+57
- Cherrydale, Arlington, VA D+57
- The Palisades, Washington, DC D+68
- Bluemont, Arlington, VA D+60
- Madison Condominium, Falls Church, VA D+45
- Ballston-Virginia Square, Arlington, VA D+58
- Lyon Village, Arlington, VA D+63
Neighborhoods with Similar Populations
- Mosswood, Oakland, CA D+82
- San Antonio Creekside, San Antonio, TX D+11
- Alma, San Jose, CA D+36
- Sunnyland, Washington, IL R+22
- Roosevelt-Toledo, Toledo, OH D+89
- Bryce Canyon North, Oxnard, CA D+36
- Gaffney Lane, Oregon City, OR R+4
- Morristown Historic District, Morristown, NJ D+27
- Monterey, Jacksonville, FL D+15
- Harlan Ranch, Clovis, CA R+17
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.