Manchester leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 90% of adults in Manchester typically vote, above the U.S. average of about 62%. Among adults in Manchester, ~29% vote Democratic, ~61% Republican, and ~10% don't vote. The map below shows estimated turnout by block group.
How Manchester compares
Among cities within 25 miles, Manchester leans more Republican than 65 of 105 neighbors.
Manchester runs about 64 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while Manchester is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Manchester. The northeast side is the most Republican-leaning (R+41) and the southwest side is the least Republican-leaning (R+29), a spread of about 12 points.
Why Manchester 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 Manchester, not a ranked or complete list of what matters most.
Manchester votes against the grain of Maryland. Maryland leans Democratic overall, while Manchester runs about 64 points more Republican. Dense places usually vote Democratic, but Manchester runs against that pattern. A high family-household share predicts Republican voting, and about 80% of households in Manchester are family households, above 89% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Manchester, MD 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 Manchester looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in Manchester have completed high school, about 6 points above the Maryland average of 91%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Melrose, MD R+38
- Hampstead, MD R+29
- Hobart, PA R+38
- Glenville, PA R+51
- Upperco, MD R+29
- Rockville, PA R+54
- Freeland, MD R+26
- Parkville, PA R+26
- Westminster, MD R+23
- Hanover, PA R+29
Cities with Similar Populations
- Chipley, FL R+60
- Isanti, MN R+31
- Flanders, NJ R+6
- Platte City, MO R+19
- Green River, WY R+50
- Ellisville, MS R+51
- North Merrick, NY R+19
- Augusta, KS R+42
- Nanakuli, HI D+5
- Elizabeth, CO R+43
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.