Mountainville leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican.
About 67% of adults in Mountainville typically vote, near the U.S. average of about 62%. Among adults in Mountainville, ~38% vote Democratic, ~29% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Mountainville compares
Among neighborhoods within 5 miles, Mountainville leans more Democratic than 2 of 17 neighbors.
Mountainville runs about 14 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Mountainville sits clearly on the Democratic side.
Politics vary noticeably by block within Mountainville. The northwest side is the most Democratic-leaning (D+20) and the southwest side is the least Democratic-leaning (D+3), a spread of about 17 points.
Why Mountainville leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Mountainville, not a ranked or complete list of what matters most.
Mountainville votes against the grain of Pennsylvania. Pennsylvania is roughly evenly split, while Mountainville runs about 14 points more Democratic.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Mountainville, Allentown, PA sits in the top quarter nationally on this measure.
Why turnout in Mountainville looks the way it does
Turnout in Mountainville sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- salisbury, Allentown, PA R+2
- South Poplar, Allentown, PA D+17
- Fairview, Allentown, PA D+23
- Downtown, Allentown, PA D+38
- West Walnut, Allentown, PA D+30
- 1st Ward, Allentown, PA D+30
- Old Allentown, Allentown, PA D+34
- Jordan Heights, Allentown, PA D+36
- Overlook Park, Allentown, PA D+26
- West Park, Allentown, PA D+29
Neighborhoods with Similar Populations
- Sierra Linda, Oxnard, CA D+31
- Marysville Historic District, Marysville, OH R+21
- Westmore, Orem, UT R+18
- Wilson Park, Milwaukee, WI D+17
- South Atrisco, South Valley, NM D+20
- McKinley, Albuquerque, NM D+23
- Mainland Park, Texas City, TX R+20
- Hillendale, Oregon City, OR Even
- West Edgewood, Indianapolis, IN Even
- Centerville, Brownsville, PA R+34
Sources and methodology
Precinct-level voting records used to fit the model come from Pennsylvania Department of State, Bureau 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.