Oak Park leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 74% of adults in Oak Park typically vote, above the U.S. average of about 62%. Among adults in Oak Park, ~21% vote Democratic, ~53% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Oak Park compares
Among cities within 25 miles, Oak Park leans more Republican than 39 of 142 neighbors.
Oak Park runs about 43 points more Republican than Pennsylvania as a whole.
Why Oak Park 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 Oak Park, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 84% of households in Oak Park are family households, about 17 points above the U.S. average of 67%.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Oak Park, PA sits in the top quarter nationally on this measure.
Why turnout in Oak Park looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Oak Park 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 69%, about 9 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in Oak Park own their home, about 16 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Mooresburg, PA R+41
- Snydertown, PA R+47
- Northumberland, PA R+37
- Riverside, PA R+28
- Rushtown, PA R+45
- Sunbury, PA R+34
- Seven Points, PA R+53
- Danville, PA R+18
- Potts Grove, PA R+54
Cities with Similar Populations
- Indian Falls, CA R+6
- Redrock, NM R+45
- Pankeyville, IL R+61
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.