Hazelwood leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 61% of adults in Hazelwood typically vote, near the U.S. average of about 62%. Among adults in Hazelwood, ~42% vote Democratic, ~20% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How Hazelwood compares
Among cities within 25 miles, Hazelwood leans more Democratic than 119 of 174 neighbors.
Hazelwood runs about 55 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while Hazelwood is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within Hazelwood. The southeast side is the most Democratic-leaning (D+59) and the northwest side is the least Democratic-leaning (D+16), a spread of about 43 points.
Why Hazelwood 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 Hazelwood, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 89% of residents in Hazelwood live in densely developed areas, about 52 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 47% of adults in Hazelwood have never been married, above 97% of cities. Hazelwood runs against the grain of Missouri, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Hazelwood, MO sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Hazelwood looks the way it does
Renters vote less often than owners. About 40% of households in Hazelwood rent, about 15 points above the U.S. average of 25%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Florissant, MO D+51
- Calverton Park, MO D+53
- Berkeley, MO D+72
- Edmundson, MO D+27
- Woodson Terrace, MO D+30
- Kinloch, MO D+77
- St. Ann, MO D+25
- Bridgeton, MO D+16
- Ferguson, MO D+69
- Breckenridge Hills, MO D+33
Cities with Similar Populations
- Warrensburg, MO R+19
- Murrells Inlet, SC R+37
- Albemarle, NC R+34
- Westchase, FL R+6
- Lafayette, CA D+48
- Ennis, TX R+28
- Roanoke, TX R+27
- Cockeysville, MD D+25
- Gibsonia, PA R+11
- Whiting, NJ R+21
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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.