Spring Valley leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 86% of adults in Spring Valley typically vote, above the U.S. average of about 62%. Among adults in Spring Valley, ~26% vote Democratic, ~60% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Spring Valley compares
Among cities within 25 miles, Spring Valley leans more Republican than 39 of 105 neighbors.
Spring Valley runs about 28 points more Republican than Ohio as a whole.
Politics vary noticeably by neighborhood within Spring Valley. The south side is the most Republican-leaning (R+44) and the west side is the least Republican-leaning (R+21), a spread of about 24 points.
Why Spring Valley 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 Spring Valley, not a ranked or complete list of what matters most.
Spring Valley votes Republican even though it is densely developed (about 20%, modestly below the Ohio average of 34%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Spring Valley, OH sits in the top quarter nationally 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 Spring Valley looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Spring Valley 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 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Spring Valley have completed high school, above 82% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Roxanna, OH R+45
- Bellbrook, OH R+19
- Trebeins, OH R+27
- New Burlington, OH R+59
- Maple Corner, OH R+56
- Xenia, OH R+27
- Centerville, OH R+4
- Corwin, OH R+59
- Waynesville, OH R+50
- Lytle, OH R+45
Cities with Similar Populations
- Trinidad, CA D+47
- Peachland, NC R+54
- Loma, CO R+54
- Osceola Mills, PA R+50
- Winterhaven, CA D+24
- Ellsworth Afb, SD R+26
- Concord, GA R+67
- Red Rock, AZ R+43
- Belmont, MS R+78
- Maidens, VA R+26
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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.