Mount Rainier is a Democratic stronghold. About 87% of voters here vote Democratic and 13% Republican.
About 52% of adults in Mount Rainier typically vote, below the U.S. average of about 62%. Among adults in Mount Rainier, ~45% vote Democratic, ~7% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How Mount Rainier compares
Among cities within 25 miles, Mount Rainier leans more Democratic than 174 of 208 neighbors.
Mount Rainier runs about 45 points more Democratic than Maryland as a whole.
Politics vary noticeably by neighborhood within Mount Rainier. The south side is the most Democratic-leaning (D+84) and the north side is the least Democratic-leaning (D+62), a spread of about 22 points.
Why Mount Rainier 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 Mount Rainier, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Mount Rainier live in densely developed areas, about 63 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Mount Rainier sits in the top quarter (about 36%, above 83% of cities). A high never-married share predicts Democratic voting, and about 44% of adults in Mount Rainier have never been married, above 96% of cities.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Mount Rainier, MD sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Mount Rainier looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Mount Rainier is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 69% of households in Mount Rainier rent, compared to around 44% in nearby cities. High food insecurity lines up with lower turnout, and about 24% of adults in Mount Rainier report food insecurity, above 90% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Brentwood, MD D+68
- North Brentwood, MD D+70
- Cottage City, MD D+68
- Colmar Manor, MD D+65
- Chillum, MD D+63
- Hyattsville, MD D+57
- Edmonston, MD D+67
- University Park, MD D+59
- Riverdale Park, MD D+56
- Bladensburg, MD D+68
Cities with Similar Populations
- Sugarmill Woods, FL R+33
- Lizella, GA R+31
- Ingleside, IL R+5
- Lebanon, KY R+38
- Caro, MI R+36
- New Square, NY R+98
- Cut Off, LA R+78
- Moab, UT R+5
- Hastings-on-Hudson, NY D+51
- Bridgewater, VA R+21
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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.