Oakmont leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 95% of adults in Oakmont typically vote, above the U.S. average of about 62%. Among adults in Oakmont, ~57% vote Democratic, ~38% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How Oakmont compares
Among cities within 25 miles, Oakmont leans more Democratic than 222 of 247 neighbors.
Oakmont runs about 23 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Oakmont sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within Oakmont. The west side is the most Democratic-leaning (D+30) and the north side is the least Democratic-leaning (D+15), a spread of about 16 points.
Why Oakmont 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 Oakmont, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 87% of residents in Oakmont live in densely developed areas, about 50 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Oakmont sits in the top quarter (about 58%, above 96% of cities). Oakmont runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Oakmont, PA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Oakmont looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Oakmont 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 73%, about 13 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 99% of adults in Oakmont have completed high school, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Verona, PA D+26
- Blawnox, PA D+20
- Fox Chapel, PA D+21
- Harwick, PA R+18
- Indianola, PA Even
- Springdale, PA R+7
- Cheswick, PA R+7
- Aspinwall, PA D+46
- Rural Ridge, PA R+6
- Sharpsburg, PA D+26
Cities with Similar Populations
- Greensburg, KY R+66
- Mount Pleasant, TN R+52
- Taylor Mill, KY R+22
- Lewistown, MT R+40
- Elm City, NC R+28
- Goodrich, MI R+31
- Lewisberry, PA R+38
- Calabash, NC R+32
- Cochituate, MA D+43
- Glen Head, NY R+12
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.