20632 leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 83% of adults in 20632 typically vote, above the U.S. average of about 62%. Among adults in 20632, ~31% vote Democratic, ~52% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How 20632 compares
Among zip codes within 15 miles, 20632 leans more Republican than 17 of 25 neighbors.
20632 runs about 55 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while 20632 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 20632. The north side is the most Republican-leaning (R+32) and the south side is the least Republican-leaning (R+18), a spread of about 14 points.
Why 20632 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 20632, not a ranked or complete list of what matters most.
20632 votes against the grain of Maryland. Maryland leans Democratic overall, while 20632 runs about 55 points more Republican. A high family-household share predicts Republican voting, and about 82% of households in 20632 are family households, above 95% of zip codes.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 20632, MD sits above the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 20632 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 20632 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 67%, about 7 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 90% of households in 20632 own their home, above 87% of zip codes. High high-school completion lines up with higher turnout, and about 97% of adults in 20632 have completed high school, above 86% of zip codes. 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.