Joppa leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.
About 89% of adults in Joppa typically vote, above the U.S. average of about 62%. Among adults in Joppa, ~34% vote Democratic, ~55% Republican, and ~11% don't vote. The map below shows estimated turnout by block group.
How Joppa compares
Among cities within 25 miles, Joppa leans more Republican than 86 of 125 neighbors.
Joppa runs about 52 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while Joppa is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Joppa. The southeast side runs the most Democratic (D+9) and the west side runs the most Republican (R+43), a spread of about 52 points.
Why Joppa 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 Joppa, not a ranked or complete list of what matters most.
Joppa votes Republican even though it is densely developed (about 43%, about 7 points above the U.S. average of 36%). Here an older population outweighs the Democratic lean that density usually predicts. Joppa runs against the grain of Maryland, 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; Joppa, MD sits above the national average 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 Joppa looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Joppa 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 66%, about 6 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Joppatowne, MD D+5
- Upper Falls, MD R+39
- Edgewood, MD D+34
- Pleasant Hills, MD R+17
- Bel Air South, MD Even
- Kingsville, MD R+32
- Abingdon, MD D+8
- Gunpowder, MD Even
- Bel Air, MD R+8
Cities with Similar Populations
- Whitehall, NY R+40
- San Quentin, CA D+41
- Sinking Spring, PA Even
- Clarkson, KY R+63
- Peralta, NM R+17
- Constantine, MI R+42
- Yellville, AR R+57
- Shenandoah, TX R+26
- Manhattan, MT R+36
- Phoenix Lake, CA R+27
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Sources and methodology
Precinct-level voting records used to fit the model come from Maryland State Board 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.