19810 leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 83% of adults in 19810 typically vote, above the U.S. average of about 62%. Among adults in 19810, ~51% vote Democratic, ~32% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How 19810 compares
Among zip codes within 15 miles, 19810 leans more Democratic than 40 of 57 neighbors.
19810 runs about 10 points more Democratic than Delaware as a whole.
Politics vary noticeably by block within 19810. The northeast side is the most Democratic-leaning (D+34) and the north side is the least Democratic-leaning (D+18), a spread of about 16 points.
Why 19810 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 19810, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 92% of residents in 19810 live in densely developed areas, about 55 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 19810 sits in the top quarter (about 55%, above 92% of zip codes).
Population density and Democratic lean
Places with high population density tend to lean Democratic; 19810, DE sits in the top quarter nationally on this measure.
Why turnout in 19810 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 19810 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 71%, about 11 points above the U.S. average of 60%. 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 Delaware Department 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.