Sandy Spring leans heavily Democratic by roughly 42 points: about 71% of voters vote Democratic and 29% Republican.
About 79% of adults in Sandy Spring typically vote, above the U.S. average of about 62%. Among adults in Sandy Spring, ~56% vote Democratic, ~23% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Sandy Spring compares
Among cities within 25 miles, Sandy Spring leans more Democratic than 86 of 198 neighbors.
Sandy Spring runs about 14 points more Democratic than Maryland as a whole.
Why Sandy Spring 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 Sandy Spring, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 66% of adults in Sandy Spring hold a bachelor's degree, about 38 points above the U.S. average of 28%. Dense areas vote Democratic, and Sandy Spring sits in the top fifth on density (about 34%, above 82% of cities). A high never-married share predicts Democratic voting, and about 35% of adults in Sandy Spring have never been married, above 87% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Sandy Spring, MD sits in the top quarter nationally on this measure.
Why turnout in Sandy Spring looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Sandy 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 74%, about 14 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 93% of households in Sandy Spring own their home, about 18 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ashton, MD D+38
- Brinklow, MD D+17
- Olney, MD D+40
- Brookeville, MD D+29
- Spencerville, MD D+25
- Cloverly, MD D+48
- Highland, MD D+21
- Aspen Hill, MD D+48
- Colesville, MD D+55
- Glenmont, MD D+51
Cities with Similar Populations
- Kaibito, AZ D+34
- Bellport, NY D+25
- Bovina, TX R+48
- Kasota, MN R+26
- Bayou Gauche, LA R+87
- Ovid, NY R+21
- Keysville, GA R+26
- Reinbeck, IA R+37
- Minong, WI R+28
- Durham, OR D+36
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Maryland State Board 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.