Overlea leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 67% of adults in Overlea typically vote, near the U.S. average of about 62%. Among adults in Overlea, ~42% vote Democratic, ~25% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Overlea compares
Among cities within 25 miles, Overlea leans more Democratic than 85 of 122 neighbors.
Overlea runs about 5 points more Republican than Maryland as a whole.
Politics vary noticeably by neighborhood within Overlea. The southwest side is the most Democratic-leaning (D+32) and the east side is the least Democratic-leaning (D+4), a spread of about 28 points.
Why Overlea 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 Overlea, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 92% of residents in Overlea live in densely developed areas, about 56 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Overlea sits in the top quarter (about 35%, above 82% of cities). A high never-married share predicts Democratic voting, and about 40% of adults in Overlea have never been married, above 94% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Overlea, MD sits in the top tenth nationally on this measure.
Why turnout in Overlea looks the way it does
Turnout in Overlea 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
- Nottingham, MD D+30
- Rosedale, MD D+28
- Rossville, MD D+45
- Parkville, MD D+39
- Carney, MD D+14
- Perry Hall, MD D+6
- White Marsh, MD D+8
- Essex, MD D+10
- Towson, MD D+43
- Middle River, MD D+14
Cities with Similar Populations
- Vineyard Haven, MA D+40
- Mays Chapel, MD D+15
- Duson, LA R+49
- Rockton, IL R+18
- Elizabeth, CO R+43
- Nanakuli, HI D+5
- New Haven, MI R+26
- North Merrick, NY R+19
- Noble, OK R+37
- Redlands, CO R+10
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.