Spring Valley leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 32% of adults in Spring Valley typically vote, below the U.S. average of about 62%. Among adults in Spring Valley, ~9% vote Democratic, ~23% Republican, and ~68% 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 6 of 59 neighbors.
Spring Valley runs about 28 points more Republican than Missouri as a whole.
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.
Areas with low college attainment vote Republican. About 12% of adults in Spring Valley hold a bachelor's degree, about 10 points below the Missouri average of 22%.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Spring Valley, MO sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Spring Valley looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Spring Valley is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 42%, about 15 points below the Missouri average of 57%. Renters vote less often than owners, and about 60% of households in Spring Valley rent, compared to around 32% in nearby cities. High food insecurity lines up with lower turnout, and about 32% of adults in Spring Valley report food insecurity, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Noel, MO R+52
- Southwest City, MO R+53
- Sulphur Springs, AR R+62
- Ginger Blue, MO R+66
- Lanagan, MO R+69
- Coy, MO R+77
- Anderson, MO R+68
- Bosky Dell, MO R+67
- Maysville, AR R+61
- Havenhurst, MO R+68
Cities with Similar Populations
- Leasburg, NC R+44
- West Burke, VT R+11
- Dayton Center, MI R+42
- Weir, KS R+55
- Hedrick, IA R+50
- Willow City, TX R+70
- Laurens, NY R+23
- Alden, IA R+45
- Badger, IA R+40
- Stonewall, OK R+60
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Sources and methodology
Precinct-level voting records used to fit the model come from Missouri 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.