Trees Mills leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 89% of adults in Trees Mills typically vote, above the U.S. average of about 62%. Among adults in Trees Mills, ~24% vote Democratic, ~65% Republican, and ~11% don't vote. The map below shows estimated turnout by block group.
How Trees Mills compares
Among cities within 25 miles, Trees Mills leans more Republican than 160 of 220 neighbors.
Trees Mills runs about 45 points more Republican than Pennsylvania as a whole.
Why Trees Mills leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Trees Mills. The lean here lands roughly where demographic data alone would predict.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Trees Mills, PA sits in the top quarter nationally on this measure.
Why turnout in Trees Mills looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Trees Mills 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 66%, about 6 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in Trees Mills own their home, about 17 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in Trees Mills have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Slickville, PA R+49
- Delmont, PA R+20
- Congruity, PA R+44
- Export, PA R+21
- Perryville, PA R+48
- Mamont, PA R+41
- Loyalhanna Woodlands Number 2, PA R+48
- Salina, PA R+50
- Forbes Road, PA R+40
- Claridge, PA R+28
Cities with Similar Populations
- Kinsey, MT R+81
- Ahsahka, ID R+65
- Nichols, FL R+46
- Bleiblerville, TX R+67
- Brantwood, WI R+39
- Elk, CA D+50
- St. George, IL R+38
- West Cameron, PA R+58
- White Fern, TN R+69
- Newtonburg, WI R+39
All Local Stats
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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.