Rosedale leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 67% of adults in Rosedale typically vote, near the U.S. average of about 62%. Among adults in Rosedale, ~43% vote Democratic, ~24% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Rosedale compares
Among cities within 25 miles, Rosedale leans more Democratic than 91 of 129 neighbors.
Politically, Rosedale sits close to the rest of Maryland.
Politics vary noticeably by neighborhood within Rosedale. The northwest side runs the most Democratic (D+69) and the southeast side runs the most Republican (R+19), a spread of about 88 points.
Why Rosedale 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 Rosedale, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 94% of residents in Rosedale 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 37% of adults in Rosedale have never been married, above 90% of cities.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Rosedale, MD sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Rosedale looks the way it does
Turnout in Rosedale 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
- Overlea, MD D+24
- Rossville, MD D+45
- Nottingham, MD D+30
- Essex, MD D+10
- Parkville, MD D+39
- Dundalk, MD R+7
- Middle River, MD D+14
- Carney, MD D+14
- Perry Hall, MD D+6
- White Marsh, MD D+8
Cities with Similar Populations
- South Milwaukee, WI D+5
- Lahaina, HI D+17
- Dover, FL R+32
- Harrison, OH R+51
- Old Hickory, TN R+18
- Owens Cross Roads, AL R+41
- Morris Plains, NJ D+11
- South Amboy, NJ R+13
- Tarzana, CA D+21
- Neosho, MO R+51
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.