Eighty Four leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 85% of adults in Eighty Four typically vote, above the U.S. average of about 62%. Among adults in Eighty Four, ~28% vote Democratic, ~57% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Eighty Four compares
Among cities within 25 miles, Eighty Four leans more Republican than 138 of 252 neighbors.
Eighty Four runs about 31 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by neighborhood within Eighty Four. The south side is the most Republican-leaning (R+46) and the northwest side is the least Republican-leaning (R+26), a spread of about 20 points.
Why Eighty Four 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 Eighty Four, not a ranked or complete list of what matters most.
Eighty Four votes Republican even though it is densely developed (about 28%, modestly below the Pennsylvania average of 33%). Here an older population outweighs the Democratic lean that density usually predicts. A high family-household share predicts Republican voting, and about 76% of households in Eighty Four are family households, above 77% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Eighty Four, PA sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Eighty Four looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Eighty Four 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 71%, about 11 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in Eighty Four own their home, about 17 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 97% of adults in Eighty Four have completed high school, above 88% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Venetia, PA R+19
- Vanceville, PA R+44
- Canonsburg, PA R+14
- Finleyville, PA R+29
- Strabane, PA R+12
- Meadowlands, PA R+22
- Houston, PA R+20
- Lawrence, PA R+12
- Bentleyville, PA R+37
- Van Voorhis, PA R+42
Cities with Similar Populations
- Carle Place, NY R+16
- Centerville, IN R+51
- Cache, OK R+49
- West Union, SC R+61
- Guilderland, NY D+29
- Norlina, NC D+15
- Boonville, NC R+63
- Oronoco, MN R+16
- Quitman, TX R+70
- Rio Hondo, TX R+14
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.