Foster Brook leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 81% of adults in Foster Brook typically vote, above the U.S. average of about 62%. Among adults in Foster Brook, ~24% vote Democratic, ~57% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How Foster Brook compares
Among cities within 25 miles, Foster Brook leans more Republican than 25 of 86 neighbors.
Foster Brook runs about 39 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by neighborhood within Foster Brook. The southeast side is the most Republican-leaning (R+48) and the north side is the least Republican-leaning (R+32), a spread of about 16 points.
Why Foster Brook 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 Foster Brook, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 87% of residents in Foster Brook drive to work alone, about 13 points above the U.S. average of 74%.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Foster Brook, PA sits in the top quarter nationally on this measure.
Why turnout in Foster Brook looks the way it does
Homeowners vote more often than renters. About 90% of households in Foster Brook own their home, about 11 points above the Pennsylvania average of 79%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Bradford, PA R+32
- Derrick City, PA R+47
- Sawyer City, PA R+49
- Limestone, NY R+41
- Gilmore, PA R+51
- Degolia, PA R+44
- South Bradford, PA R+39
- Chipmunk, NY R+39
- Summit, PA R+55
- Custer City, PA R+40
Cities with Similar Populations
- Lewellen, NE R+72
- Lilly, MO R+53
- Thornton, WI R+40
- Thorntonville, TX R+73
- Walsh, CO R+63
- East Millsboro, PA R+41
- Merriman, MI R+37
- New Cleveland, OH R+63
- South Heart, ND R+77
- East Meredith, NY R+23
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.