20016 is a Democratic stronghold. About 85% of voters here vote Democratic and 15% Republican.
About 80% of adults in 20016 typically vote, above the U.S. average of about 62%. Among adults in 20016, ~68% vote Democratic, ~12% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How 20016 compares
Among zip codes within 15 miles, 20016 leans more Democratic than 94 of 131 neighbors.
20016 runs about 14 points more Republican than the District of Columbia as a whole.
Politics vary noticeably by block within 20016. The northeast side is the most Democratic-leaning (D+81) and the west side is the least Democratic-leaning (D+62), a spread of about 19 points.
Why 20016 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 20016, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 82% of adults in 20016 hold a bachelor's degree, about 54 points above the U.S. average of 28%. Dense areas vote Democratic, and 20016 sits in the top fifth on density (about 95%, above 91% of zip codes). A high never-married share predicts Democratic voting, and about 40% of adults in 20016 have never been married, above 87% of zip codes.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 20016, DC sits in the top 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 20016 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 20016 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 79%, about 19 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 99% of adults in 20016 have completed high school, above 97% 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 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.