21562 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 67% of adults in 21562 typically vote, near the U.S. average of about 62%. Among adults in 21562, ~15% vote Democratic, ~52% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 21562 compares
Among zip codes within 15 miles, 21562 leans more Republican than 6 of 18 neighbors.
21562 runs about 84 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while 21562 is one of the few Republican-leaning pockets.
Why 21562 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 21562, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 21562, about 97% of residents are non-Hispanic white, about 24 points above the U.S. average of 72%; about 14% of adults hold a bachelor's degree, about 24 points below the Maryland average of 38%. Car-dependent areas vote Republican, and about 85% of residents in 21562 drive to work alone, above 88% of zip codes. 21562 runs against the grain of Maryland, a Republican-leaning pocket in a Democratic-leaning state.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 21562, MD sits below the national average on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 21562 looks the way it does
Turnout in 21562 sits close to the national pattern. 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.