20625 leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 74% of adults in 20625 typically vote, above the U.S. average of about 62%. Among adults in 20625, ~26% vote Democratic, ~48% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 20625 compares
Among zip codes within 15 miles, 20625 leans more Republican than 10 of 17 neighbors.
20625 runs about 59 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while 20625 is one of the few Republican-leaning pockets.
Why 20625 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 20625, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 2% of adults in 20625 hold a bachelor's degree, about 35 points below the Maryland average of 38%. A high family-household share predicts Republican voting, and about 81% of households in 20625 are family households, above 94% of zip codes. 20625 runs against the grain of Maryland, a Republican-leaning pocket in a Democratic-leaning state.
Renting and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 20625, MD sits in the bottom tenth nationally on this measure.
Why turnout in 20625 looks the way it does
Homeowners vote more often than renters. More than 99% of households in 20625 own their home, about 23 points above the Maryland average of 77%. 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.