Erie County leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 79% of adults in Erie County typically vote, above the U.S. average of about 62%. Among adults in Erie County, ~34% vote Democratic, ~45% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Erie County compares
Among counties within 50 miles, Erie County leans more Republican than 2 of 10 neighbors.
Politically, Erie County sits close to the rest of Ohio.
Politics vary noticeably by city within Erie County. The north side runs the most Democratic (D+15) and the southwest side runs the most Republican (R+43), a spread of about 58 points.
Why Erie County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Erie County, not a ranked or complete list of what matters most.
Erie County votes Republican even though it is densely developed (about 53%, well above the Ohio average of 34%). Here an older population outweighs the Democratic lean that density usually predicts.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Erie County, OH 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 Erie County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Erie County 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 64%, above 72% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Huron County, OH R+44
- Sandusky County, OH R+33
- Ottawa County, OH R+30
- Lorain County, OH R+5
- Seneca County, OH R+35
- Ashland County, OH R+50
- Crawford County, OH R+51
- Richland County, OH R+27
- Medina County, OH R+25
- Cuyahoga County, OH D+35
Counties with Similar Populations
- Grays Harbor County, WA R+8
- Van Buren County, MI R+20
- Jackson County, GA R+54
- Walton County, FL R+50
- Valencia County, NM R+13
- Cayuga County, NY R+17
- Chatham County, NC R+3
- Hancock County, OH R+32
- Walker County, TX R+20
- Cheshire County, NH Even
Sources and methodology
Precinct-level voting records used to fit the model come from Ohio Secretary of State, 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.