20036 is a Democratic stronghold. About 86% of voters here vote Democratic and 14% Republican.
About 71% of adults in 20036 typically vote, above the U.S. average of about 62%. Among adults in 20036, ~61% vote Democratic, ~10% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 20036 compares
Among zip codes within 15 miles, 20036 leans more Democratic than 88 of 123 neighbors.
20036 runs about 12 points more Republican than the District of Columbia as a whole.
Politics vary noticeably by block within 20036. The north side is the most Democratic-leaning (D+82) and the southwest side is the least Democratic-leaning (D+63), a spread of about 19 points.
Why 20036 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 20036, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 94% of adults in 20036 hold a bachelor's degree, about 66 points above the U.S. average of 28%. Dense areas vote Democratic, and 20036 sits in the top fifth on density (more than 99%, in the top fraction of zip codes). A high never-married share predicts Democratic voting, and about 75% of adults in 20036 have never been married, in the top fraction of zip codes.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 20036, 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 20036 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 20036 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 77%, about 17 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and more than 99% of adults in 20036 have completed high school, in the top fraction 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.