20608 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 73% of adults in 20608 typically vote, above the U.S. average of about 62%. Among adults in 20608, ~44% vote Democratic, ~29% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How 20608 compares
Among zip codes within 15 miles, 20608 leans more Democratic than 18 of 24 neighbors.
20608 runs about 9 points more Republican than Maryland as a whole.
Why 20608 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 20608. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 20608, MD sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 20608 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 20608 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 64%, above 58% 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.