Breckenridge Hills leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About 48% of adults in Breckenridge Hills typically vote, below the U.S. average of about 62%. Among adults in Breckenridge Hills, ~32% vote Democratic, ~16% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.
How Breckenridge Hills compares
Among cities within 25 miles, Breckenridge Hills leans more Democratic than 122 of 178 neighbors.
Breckenridge Hills runs about 52 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while Breckenridge Hills is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within Breckenridge Hills. The north side is the most Democratic-leaning (D+37) and the southeast side is the least Democratic-leaning (D+26), a spread of about 11 points.
Why Breckenridge 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 Breckenridge Hills, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Breckenridge Hills live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 48% of adults in Breckenridge Hills have never been married, above 98% of cities. Breckenridge Hills runs against the grain of Missouri, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Breckenridge Hills, MO sits in the top tenth nationally on this measure.
Why turnout in Breckenridge Hills looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Breckenridge Hills is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 43% of households in Breckenridge Hills rent, about 18 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 24% of adults in Breckenridge Hills report food insecurity, above 89% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Woodson Terrace, MO D+30
- St. John, MO D+32
- Overland, MO D+24
- Edmundson, MO D+27
- St. Ann, MO D+25
- Sycamore Hills, MO D+29
- Charlack, MO D+49
- Bel-Ridge, MO D+69
- Vinita Park, MO D+66
- Bellerive, MO D+56
Cities with Similar Populations
- Smithfield, PA R+55
- West Lebanon, NH D+49
- West Liberty, IA R+7
- Moody, TX R+65
- San Antonio, FL R+27
- Rising Sun, IN R+56
- Georgia, VT R+21
- Bayside, WI D+35
- Chauvin, LA R+75
- Elk Ridge, UT R+60
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.