Lower Marlboro leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About more than 99% of adults in Lower Marlboro typically vote, above the U.S. average of about 62%. Among adults in Lower Marlboro, ~41% vote Democratic, ~63% Republican, and ~-4% don't vote. The map below shows estimated turnout by block group.
How Lower Marlboro compares
Among cities within 25 miles, Lower Marlboro leans more Republican than 104 of 128 neighbors.
Lower Marlboro runs about 52 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while Lower Marlboro is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Lower Marlboro. The north side is the most Republican-leaning (R+28) and the east side is the least Republican-leaning (R+17), a spread of about 10 points.
Why Lower Marlboro 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 Lower Marlboro, not a ranked or complete list of what matters most.
Lower Marlboro votes against the grain of Maryland. Maryland leans Democratic overall, while Lower Marlboro runs about 52 points more Republican. Dense places usually vote Democratic, but Lower Marlboro runs against that pattern. A high family-household share predicts Republican voting, and about 80% of households in Lower Marlboro are family households, above 89% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Lower Marlboro, MD sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Lower Marlboro looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Lower Marlboro 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 73%, about 13 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in Lower Marlboro own their home, about 20 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 99% of adults in Lower Marlboro have completed high school, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Owings, MD R+20
- Aquasco, MD D+19
- Huntingtown, MD R+17
- Baden, MD D+23
- Eagle Harbor, MD D+21
- Sunderland, MD R+15
- Dunkirk, MD R+18
- Chesapeake Beach, MD R+5
- Malcolm, MD Even
- Benedict, MD R+7
Cities with Similar Populations
- Carson Spring, TN R+70
- Vogel Center, MI R+56
- North Belgrade, ME R+6
- Buxton, OR R+26
- Rutledge, MO R+72
- Kings Creek, SC R+75
- Little Creek, MS R+46
- Aultman, PA R+50
- Lupton, AZ D+55
- Beaman, MO R+69
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.