Fairfield leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 72% of adults in Fairfield typically vote, above the U.S. average of about 62%. Among adults in Fairfield, ~32% vote Democratic, ~40% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Fairfield compares
Among cities within 25 miles, Fairfield leans more Republican than 46 of 140 neighbors.
Politically, Fairfield sits close to the rest of Ohio.
Politics vary noticeably by neighborhood within Fairfield. The east side runs the most Democratic (D+19) and the southwest side runs the most Republican (R+37), a spread of about 55 points.
Why Fairfield 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 Fairfield, not a ranked or complete list of what matters most.
Fairfield votes Republican even though it is densely developed (about 88%, far above the Ohio average of 34%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Fairfield, OH sits in the top tenth nationally on this measure.
Why turnout in Fairfield looks the way it does
Turnout in Fairfield 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
- Forest Park, OH D+58
- Fairplay, OH R+64
- Springdale, OH D+23
- Greenhills, OH D+7
- Dunlap, OH R+52
- Hamilton, OH R+25
- Glendale, OH D+16
- Woodlawn, OH D+63
- Ross, OH R+61
- Mount Healthy, OH D+36
Cities with Similar Populations
- Lancaster, SC R+18
- Bartlett, TN R+16
- Prattville, AL R+36
- Woodland Hills, CA D+23
- Owasso, OK R+25
- Alvin, TX R+42
- Middletown, DE D+16
- West Orange, NJ D+51
- North Lauderdale, FL D+51
- Lake Mary, FL R+9
All Local Stats
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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.