Warren County leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 74% of adults in Warren County typically vote, above the U.S. average of about 62%. Among adults in Warren County, ~22% vote Democratic, ~52% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Warren County compares
Among counties within 50 miles, Warren County leans more Republican than 5 of 9 neighbors.
Warren County runs about 39 points more Republican than Pennsylvania as a whole.
Politics vary noticeably by city within Warren County. The northwest side is the most Republican-leaning (R+58) and the east side is the least Republican-leaning (R+23), a spread of about 35 points.
Why Warren County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Warren County. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Warren County, PA sits above the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Warren County looks the way it does
Turnout in Warren County 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 Counties
- Forest County, PA R+24
- Chautauqua County, NY R+16
- McKean County, PA R+43
- Cattaraugus County, NY R+29
- Venango County, PA R+42
- Elk County, PA R+42
- Erie County, PA Even
- Crawford County, PA R+39
- Clarion County, PA R+50
- Jefferson County, PA R+55
Counties with Similar Populations
- Colleton County, SC R+17
- Isle of Wight County, VA R+17
- Graham County, AZ R+39
- Finney County, KS R+25
- Woodford County, IL R+40
- Gloucester County, VA R+38
- Dallas County, AL D+38
- Champaign County, OH R+51
- Guernsey County, OH R+50
- Susquehanna County, PA R+45
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.