Blue Ash, OH Political Map | Democrat & Republican Areas in Blue Ash

By the BestNeighborhood data science team. Last updated May 2026.

Blue Ash leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.

 

About 87% of adults in Blue Ash typically vote, above the U.S. average of about 62%. Among adults in Blue Ash, ~48% vote Democratic, ~39% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.

How Blue Ash compares

Among cities within 25 miles, Blue Ash leans more Democratic than 125 of 146 neighbors.

Blue Ash runs about 21 points more Democratic than Ohio as a whole. Ohio leans Republican overall, while Blue Ash is one of the few Democratic-leaning pockets.

Politics vary noticeably by neighborhood within Blue Ash. The northeast side is the most Democratic-leaning (D+18) and the east side is the least Democratic-leaning (Even), a spread of about 16 points.

Why Blue Ash 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 Blue Ash, not a ranked or complete list of what matters most.

Dense areas vote Democratic. About 96% of residents in Blue Ash live in densely developed areas, about 60 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Blue Ash sits in the top quarter (about 63%, above 97% of cities). Blue Ash runs against the grain of Ohio, a Democratic-leaning pocket in a Republican-leaning state.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Blue Ash, OH 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 Blue Ash looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Blue Ash 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 74%, about 14 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Blue Ash have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.

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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.