Hartly leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 78% of adults in Hartly typically vote, above the U.S. average of about 62%. Among adults in Hartly, ~22% vote Democratic, ~56% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Hartly compares
Among cities within 25 miles, Hartly leans more Republican than 81 of 98 neighbors.
Hartly runs about 58 points more Republican than Delaware as a whole. Delaware leans Democratic overall, while Hartly is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Hartly. The southwest side is the most Republican-leaning (R+51) and the southeast side is the least Republican-leaning (R+23), a spread of about 28 points.
Why Hartly 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 Hartly, not a ranked or complete list of what matters most.
Hartly votes against the grain of Delaware. Delaware leans Democratic overall, while Hartly runs about 58 points more Republican.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Hartly, DE sits below the national average on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Hartly looks the way it does
Turnout in Hartly 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 Cities
- Hazlettville, DE R+43
- Marydel, DE R+51
- Seeneytown, DE R+36
- Downs Chapel, DE R+41
- Marydel, MD R+48
- Kenton, DE R+40
- Cheswold, DE D+12
- Camden, DE Even
- Sandtown, DE R+47
- Wyoming, DE D+7
Cities with Similar Populations
- Locust Valley, NY R+16
- Simms, LA R+81
- Brodhead, KY R+72
- Marshalls Creek, PA Even
- Brownsville, KY R+67
- Clarksville, VA R+26
- Sunderland, MA D+48
- Hillsboro, TN R+69
- Le Center, MN R+34
- Lawrence, MI R+28
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.