Doncaster leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 88% of adults in Doncaster typically vote, above the U.S. average of about 62%. Among adults in Doncaster, ~36% vote Democratic, ~52% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Doncaster compares
Among cities within 25 miles, Doncaster leans more Republican than 79 of 108 neighbors.
Doncaster runs about 47 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while Doncaster is one of the few Republican-leaning pockets.
Why Doncaster 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 Doncaster, not a ranked or complete list of what matters most.
Doncaster votes against the grain of Maryland. Maryland leans Democratic overall, while Doncaster runs about 47 points more Republican. A high family-household share predicts Republican voting, and about 78% of households in Doncaster are family households, above 85% of cities.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; Doncaster, MD sits in the top tenth nationally on this measure.
Why turnout in Doncaster looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in Doncaster have completed high school, about 6 points above the Maryland average of 91%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Quantico, VA D+38
- Nanjemoy, MD R+20
- Marbury, MD D+19
- Quantico Base, VA R+5
- Cherry Hill, VA D+51
- Triangle, VA D+43
- Indian Head, MD D+26
- Welcome, MD R+33
- Ripley, MD D+35
Cities with Similar Populations
- Coalton, OH R+63
- Ridott, IL R+44
- Harpertown, WV R+56
- Apple Valley, UT R+65
- Belton, KY R+64
- Lowry, MN R+43
- Mark, IL R+29
- Sale City, GA R+61
- Falling Water, TN R+41
- Cold Spring, PA R+47
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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.