Hanley Hills is a Democratic stronghold. About 88% of voters here vote Democratic and 12% Republican.
About 46% of adults in Hanley Hills typically vote, below the U.S. average of about 62%. Among adults in Hanley Hills, ~40% vote Democratic, ~6% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How Hanley Hills compares
Among cities within 25 miles, Hanley Hills leans more Democratic than 150 of 175 neighbors.
Hanley Hills runs about 94 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while Hanley Hills is one of the few Democratic-leaning pockets.
Why Hanley Hills 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 Hanley Hills, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 95% of residents in Hanley Hills live in densely developed areas, about 59 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 45% of adults in Hanley Hills have never been married, above 96% of cities. Hanley Hills runs against the grain of Missouri, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Hanley Hills, MO sits in the bottom tenth 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 Hanley Hills looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Hanley Hills 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 45%, about 12 points below the Missouri average of 57%. Renters vote less often than owners, and about 41% of households in Hanley Hills rent, about 16 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 34% of adults in Hanley Hills report food insecurity, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Vinita Terrace, MO D+68
- Vinita Park, MO D+66
- Greendale, MO D+78
- Pagedale, MO D+82
- Bel-Nor, MO D+68
- Charlack, MO D+49
- University City, MO D+69
- Sycamore Hills, MO D+29
- Velda City, MO D+87
- Bel-Ridge, MO D+69
Cities with Similar Populations
- Mount Ayr, IA R+43
- Forestville, WI R+31
- Blanchard, MI R+41
- Pocono Pines, PA R+12
- Coden, AL R+76
- Saxton, PA R+65
- Firth, ID R+69
- Leonard, OK R+41
- Ansonia, OH R+68
- Hermosa, SD R+58
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.