19931 is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 74% of adults in 19931 typically vote, above the U.S. average of about 62%. Among adults in 19931, ~18% vote Democratic, ~56% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 19931 compares
Among zip codes within 15 miles, 19931 is the most Republican-leaning.
19931 runs about 67 points more Republican than Delaware as a whole. Delaware leans Democratic overall, while 19931 is one of the few Republican-leaning pockets.
Why 19931 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 19931, not a ranked or complete list of what matters most.
19931 votes against the grain of Delaware. Delaware leans Democratic overall, while 19931 runs about 67 points more Republican. Low college attainment predicts Republican voting, and 19931 sits in the bottom quarter (about 15%, below 81% of zip codes). A high family-household share predicts Republican voting, and about 77% of households in 19931 are family households, above 85% of zip codes.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 19931, DE 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 19931 looks the way it does
Homeowners vote more often than renters. About 94% of households in 19931 own their home, about 15 points above the Delaware average of 78%. Limited routine healthcare access lines up with lower turnout, and 19931 sits in the bottom quarter on routine-care measures. 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.