Millville leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About more than 99% of adults in Millville typically vote, above the U.S. average of about 62%. Among adults in Millville, ~51% vote Democratic, ~57% Republican, and ~-8% don't vote. The map below shows estimated turnout by block group.
How Millville compares
Among cities within 25 miles, Millville leans more Republican than 11 of 55 neighbors.
Millville runs about 22 points more Republican than Delaware as a whole. Delaware leans Democratic overall, while Millville is one of the few Republican-leaning pockets.
Why Millville leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Millville, not a ranked or complete list of what matters most.
Millville votes Republican even though it is densely developed (about 55%, modestly above the Delaware average of 43%). Here an older population outweighs the Democratic lean that density usually predicts. Millville runs against the grain of Delaware, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Millville, DE sits in the top quarter 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 Millville looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Millville 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 70%, about 10 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in Millville own their home, about 19 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in Millville have completed high school, above 93% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ocean View, DE R+7
- Bethany Beach, DE D+7
- Frankford, DE R+17
- South Bethany, DE D+11
- Dagsboro, DE R+22
- Selbyville, DE R+19
- Long Neck, DE R+20
- Fenwick Island, DE D+3
- Riverdale, DE R+16
- Millsboro, DE R+12
Cities with Similar Populations
- Fairview, MT R+72
- Lorida, FL R+60
- Connelly Springs, NC R+55
- Red House, WV R+60
- Newark, IL R+38
- Augusta, AR R+18
- Vaiden, MS D+3
- Gallant, AL R+86
- Pine Grove, GA R+72
- Uniontown, KY R+63
All Local Stats
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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.