Costello is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 70% of adults in Costello typically vote, above the U.S. average of about 62%. Among adults in Costello, ~13% vote Democratic, ~57% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Costello compares
Among cities within 25 miles, Costello leans more Republican than 45 of 47 neighbors.
Costello runs about 63 points more Republican than Pennsylvania as a whole.
Why Costello 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 Costello, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in Costello live in densely developed areas, about 32 points below the Pennsylvania average of 33%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Costello, PA sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Costello looks the way it does
Turnout in Costello sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Austin, PA R+67
- Wharton, PA R+64
- Odin, PA R+67
- Sizerville, PA R+55
- Gardeau, PA R+57
- Inez, PA R+61
- Emporium, PA R+44
- Conrad, PA R+64
- Cameron, PA R+56
- Wrights, PA R+61
Cities with Similar Populations
- Kadesh, LA R+63
- Oklahoma Flat, TX R+76
- Vale, TN R+71
- West Pelham, MA D+58
- Bodcaw, AR R+62
- Keysburg, KY R+63
- Fremont Center, NY R+19
- Scobeville, MO R+75
- Hampden, AL D+41
- Biscay, MN R+53
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.