Great Mills leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 73% of adults in Great Mills typically vote, above the U.S. average of about 62%. Among adults in Great Mills, ~43% vote Democratic, ~31% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Great Mills compares
Among cities within 25 miles, Great Mills leans more Democratic than 89 of 91 neighbors.
Great Mills runs about 13 points more Republican than Maryland as a whole.
Politics vary noticeably by neighborhood within Great Mills. The east side runs the most Democratic (D+26) and the southeast side runs the most Republican (R+2), a spread of about 29 points.
Why Great Mills 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 Great Mills, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 60% of residents in Great Mills live in densely developed areas, about 23 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Great Mills sits in the top quarter (about 35%, above 82% of cities). A high never-married share predicts Democratic voting, and about 37% of adults in Great Mills have never been married, above 91% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Great Mills, MD sits in the top tenth nationally on this measure.
Why turnout in Great Mills looks the way it does
Turnout in Great Mills sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lexington Park, MD D+21
- California, MD R+3
- Callaway, MD R+18
- Patuxent River, MD D+3
- Park Hall, MD D+4
- Solomons, MD Even
- Valley Lee, MD R+14
- Dowell, MD R+2
- Drayden, MD R+18
- Hollywood, MD R+26
Cities with Similar Populations
- Mount Vernon, KY R+69
- Landrum, SC R+52
- Rayville, LA R+19
- Center, TX R+31
- Nekoosa, WI R+26
- West Livingston, TX R+31
- Seven Points, TX R+72
- Cumberland Hill, RI Even
- Tuba City, AZ D+41
- Wilmington Manor, DE D+31
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.