Charlestown leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 75% of adults in Charlestown typically vote, above the U.S. average of about 62%. Among adults in Charlestown, ~31% vote Democratic, ~44% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Charlestown compares
Among cities within 25 miles, Charlestown leans more Republican than 54 of 113 neighbors.
Charlestown runs about 47 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while Charlestown is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Charlestown. The southwest side is the most Republican-leaning (R+25) and the north side is the least Republican-leaning (R+12), a spread of about 13 points.
Why Charlestown 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 Charlestown, not a ranked or complete list of what matters most.
Charlestown votes against the grain of Maryland. Maryland leans Democratic overall, while Charlestown runs about 47 points more Republican.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as Charlestown, MD does.
Why turnout in Charlestown looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Charlestown 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 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Charlestown have completed high school, above 82% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- North East, MD R+26
- Principio Furnace, MD R+28
- Theodore, MD R+56
- Perryville, MD R+22
- Perry Point, MD R+14
- Frenchtown, MD R+30
- Red Point, MD R+32
- Port Deposit, MD R+45
- Havre de Grace, MD D+5
- Colonial Acres, MD R+11
Cities with Similar Populations
- Chesilhurst, NJ D+24
- Hampton, AR R+56
- Genoa, WV R+70
- Fitzwilliam, NH Even
- Reagan, TN R+77
- Friendsville, MD R+56
- Wisner, LA R+12
- Banner, KY R+66
- Gibson, LA R+19
- Peletier, NC R+51
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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.