County profile
St. Louis County, Missouri
Environmental & community health profile. Fused from EPA, CDC, CMS, and Census data into a single free view.
Opportunity Score
out of 100
Env
59
Disease
29
Provider
21
SDOH
37
Compound Signal Status
No compound signal at the 70th-percentile threshold
St. Louis County, Missouri does not show a compound signal, but its environmental risk score of 59 (59th percentile nationally) is notably above the median. This reflects elevated air quality, water contamination, toxic releases, or climate exposure. The other dimensions remain below the 70th-percentile compound-signal threshold, so the pattern here is concentrated risk in one area rather than converging multi-dimensional stress.
Environmental Factors
Air, water, and exposure indicators
Top environmental indicators for St. Louis County with state and national benchmarks. Full profile covers 40+ metrics on the platform.
| Indicator | St. Louis County | MO avg | US avg |
|---|---|---|---|
PM2.5 (annual mean) EPA AQS / EJSCREEN | 8.7 µg/m³ ▲ +17% vs MO | 7.5 | 7.4 |
Ozone EPA AQS / EJSCREEN | 65.9 ppb ▲ +17% vs MO | 56.4 | 57.1 |
Traffic Proximity EJSCREEN | 1,680,041 index ▲ +955% vs MO | 159,297 | 291,320 |
Days Above 95°F NOAA ACIS | 40 days/yr ▲ +275% vs MO | 11 | 25 |
Superfund Proximity EPA EJSCREEN | 0.39 score ▼ -41% vs MO | 0.66 | 0.16 |
Drinking Water Violations EPA EJSCREEN | 0.00 score ▼ -100% vs MO | 0.46 | 3.39 |
Health Outcomes
Chronic disease prevalence
CDC PLACES model-based prevalence estimates for adults in St. Louis County. Full profile covers 15+ health outcomes plus mortality on the platform.
| Condition | St. Louis County | MO avg | US avg |
|---|---|---|---|
Current Asthma % of adults with current asthma | 10.6% -1.5% vs MO | 10.8% | 10.6% |
COPD % of adults with diagnosed COPD | 6.5% ▼ -36% vs MO | 10.2% | 8.5% |
Diabetes % of adults with diagnosed diabetes | 11.5% ▼ -16% vs MO | 13.6% | 13.6% |
Coronary Heart Disease % of adults with CHD | 6.1% ▼ -27% vs MO | 8.3% | 7.8% |
Depression % of adults ever diagnosed with depression | 22.7% ▼ -9.5% vs MO | 25.1% | 22.9% |
Frequent Mental Distress % of adults with 14+ poor mental health days/month | 15.9% ▼ -12% vs MO | 18.1% | 17.1% |
On the full platform
What else is available for St. Louis County
The page above is a subset. The free Community account unlocks the full single-county profile — every indicator, every data source, demographics, historical trends, and mortality data. Professional unlocks multi-county comparison, compound signal analysis, service line rankings, and consultant-ready PDF reports.
Full Environmental Profile
All 40+ environmental metrics including toxic releases, hazardous site proximity, PFAS detection, pesticide exposure, and climate stress indicators.
Service Line Opportunities
See how St. Louis County ranks for respiratory, oncology, cardiovascular, renal, endocrine, and behavioral health service line opportunity.
Multi-County Comparison
Compare St. Louis County side-by-side with neighboring counties across every dimension.
Trend Analysis
5-year sparklines for health outcomes, SDOH measures, and mortality rates so you can see where the county is heading, not just where it is today.
PDF Report Export
Generate a consultant-ready environmental health briefing for St. Louis County with methodology citations — drops straight into a CHNA or grant application.
Nearby Counties
Counties bordering St. Louis County
Adjacent county profiles with their own scores and environmental health data. Source: Census Bureau County Adjacency File.
Franklin County
Missouri
43
Moderate
St. Louis city
Missouri
41
Moderate
Jefferson County
Missouri
39
Below Avg
St. Clair County
Illinois
39
Below Avg
Madison County
Illinois
37
Below Avg
St. Charles County
Missouri
32
Below Avg
Data sources: EPA AQS, EPA EJSCREEN, EPA TRI, CDC PLACES, CDC WONDER, CMS NPPES, Census ACS, County Health Rankings, NOAA ACIS, NCI State Cancer Profiles. Every score on this page is derived from publicly available federal data, fused by the Banana Analytics pipeline.
Methodology: See the full scoring methodology (v1.2.0) for weights, sensitivity analysis, and validation against county-level mortality data.
Last refreshed: April 17, 2026