St. Mary's County Health Data
St. Mary's County, Maryland
CDC County Health RankingsHealth Score
77/100
Excellent
Life Expectancy
77.0 yr
Uninsured Rate
5.3%
Health Statistics
Life Expectancy
77.0 yr
State avg 77.0 yr
National avg 77.5 yr
Uninsured Rate
5.3%
State avg 6.4%
National avg 9%
Primary Care Providers
37
per 100K population
National avg 82
Mental Health Providers
152
per 100K population
National avg 350
Poor / Fair Health
16.5%
State avg 16.0%
National avg 19.6%
Healthcare Access
Primary Care Physicians
30.6
per 100K residentsCDC: 36.7 per 100K
Dentists
14.0
per 100K residents
Nurse Practitioners & PAs
7.0
per 100K residents
Provider counts from CMS NPPES (National Provider Identifier Registry). Data current as of 2026.
Chronic Disease & Behavioral Health
These prevalence estimates come from the CDC PLACES program (Population-Level Analysis and Community Estimates), which combines BRFSS survey data with statistical modeling to produce county-level rates. Estimates are age-adjusted to enable fair comparisons across counties with different age distributions. Use them to spot where St. Mary's County differs most from state and national norms.
Most prevalent chronic conditions
| Measure | St. Mary's | State avg | National avg | Vs state |
|---|---|---|---|---|
| Obesity | 37.2% | 36.4% | 37.6% | 0.8 pts worse than state |
| Diabetes | 10.3% | 10.7% | 11.2% | near state average |
| High Blood Pressure | 32.6% | 34.1% | 33.5% | 1.5 pts better than state |
| Depression | 21.5% | 21.8% | 24.1% | near state average |
Health-risk behaviors
| Measure | St. Mary's | State avg | National avg | Vs state |
|---|---|---|---|---|
| Current Cigarette Smoking | 12.7% | 12.9% | 16.3% | near state average |
| Binge Drinking | 17.7% | 16.5% | 17.8% | 1.2 pts worse than state |
| Physical Inactivity | 22.3% | 23.7% | 27.0% | 1.4 pts better than state |
Preventive-care uptake
| Measure | St. Mary's | State avg | National avg | Vs state |
|---|---|---|---|---|
| Annual Routine Checkup | 76.5% | 77.4% | 74.9% | 0.9 pts worse than state |
| Dental Visit (past year) | 64.3% | 62.7% | 57.3% | 1.6 pts better than state |
| Mammography (women 50–74) | 77.4% | 79.0% | 73.3% | 1.6 pts worse than state |
Daily-life impact
| Measure | St. Mary's | State avg | National avg | Vs state |
|---|---|---|---|---|
| Frequent Mental Distress | 16.9% | 17.0% | 18.6% | near state average |
| Short Sleep Duration | 37.7% | 38.2% | 37.3% | near state average |
These rates are part of the CDC PLACES survey. Compare St. Mary's County nationally on dental visit (past year).
Source: CDC PLACES, 2023 release · age-adjusted prevalence (%). Confidence intervals are available on individual rankings pages.
Data Story
St. Mary's County mental health provider density lower than median
Health data brief for St. Mary's County, Maryland.
St. Mary’s County has 152 mental health providers per 100,000 residents. This is lower than the national median of 250 per 100,000 residents. Life expectancy in the county is 77.0 years, which matches both the Maryland state average and the national average. The uninsured rate in the county is 5.3%, lower than the state average of 6.4% and the national average of 10%. Additionally, 16.5% of the population reports poor or fair health, which is close to the national average of 17%. Regarding clinical care, the county has 37 primary care providers per 100,000 residents, which is lower than the national median of 70 per 100,000. These statistics are reported by the CDC and the National Plan and Provider Enumeration System. Explore state-level data.
Sources
- CDC County Health Rankings v2
- HHS NPPES
Get Care in St. Mary's County, Maryland
Direct contact information for hospitals and community health resources serving this county. Hospital quality ratings come from CMS Care Compare — the federal program that measures hospital performance on safety, patient experience, and outcomes.
Hospitals near you
Compare all on Medicare.gov →Medstar Saint Mary's Hospital
EReHealth Insurance
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Frequently Asked Questions
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Data Sources
Health data sourced from the County Health Rankings & Roadmaps, a collaboration between the Robert Wood Johnson Foundation and the University of Wisconsin Population Health Institute.
Data is informational only. Not medical or health advice. Coverage varies by county and reporting year.