19701 leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 77% of adults in 19701 typically vote, above the U.S. average of about 62%. Among adults in 19701, ~51% vote Democratic, ~26% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 19701 compares
Among zip codes within 15 miles, 19701 leans more Democratic than 21 of 29 neighbors.
19701 runs about 17 points more Democratic than Delaware as a whole.
Politics vary noticeably by block within 19701. The northwest side is the most Democratic-leaning (D+56) and the east side is the least Democratic-leaning (D+13), a spread of about 43 points.
Why 19701 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 19701, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 19701 is about 48%, about 24 points below the U.S. average of 72%. High college attainment predicts Democratic voting, and 19701 sits in the top quarter (about 38%, above 79% of zip codes).
Population density and Democratic lean
Places with high population density tend to lean Democratic; 19701, DE sits in the top quarter nationally on this measure.
Why turnout in 19701 looks the way it does
Turnout in 19701 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.