20755 leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 57% of adults in 20755 typically vote, near the U.S. average of about 62%. Among adults in 20755, ~39% vote Democratic, ~18% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How 20755 compares
Among zip codes within 15 miles, 20755 leans more Democratic than 25 of 70 neighbors.
20755 runs about 8 points more Democratic than Maryland as a whole.
Politics vary noticeably by block within 20755. The northwest side is the most Democratic-leaning (D+48) and the north side is the least Democratic-leaning (D+32), a spread of about 17 points.
Why 20755 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 20755, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 52% of adults in 20755 hold a bachelor's degree, about 24 points above the U.S. average of 28%. Density combined with diversity predicts Democratic voting, and non-Hispanic white share in 20755 is about 39%, about 33 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 35% of adults in 20755 have never been married, above 78% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 20755, MD sits in the top quarter nationally on this measure.
Why turnout in 20755 looks the way it does
Renters vote less often than owners. About 88% of households in 20755 rent, about 63 points above the U.S. average of 25%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.