20064 is a Democratic stronghold. About 81% of voters here vote Democratic and 19% Republican.
About 40% of adults in 20064 typically vote, below the U.S. average of about 62%. Among adults in 20064, ~32% vote Democratic, ~8% Republican, and ~60% don't vote. The map below shows estimated turnout by block group.
How 20064 compares
Among zip codes within 15 miles, 20064 leans more Democratic than 63 of 126 neighbors.
20064 runs about 21 points more Republican than the District of Columbia as a whole.
Why 20064 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 20064, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 20064 live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 98% of adults in 20064 have never been married, in the top fraction of zip codes.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 20064, DC sits in the bottom tenth nationally 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 20064 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 20064 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 35%, about 34 points below the the District of Columbia average of 69%. High food insecurity lines up with lower turnout, and about 58% of adults in 20064 report food insecurity, in the top fraction of zip codes. High-crime urban areas turn out at lower rates, and 20064 sits in the top 15% on a violent-crime measure. 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 District of Columbia 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.