Maryland Health Data
Health scores and healthcare access for all 24 counties.
County Health Rankings & Roadmaps 2025Life expectancy
77 yr
Unweighted mean across reporting counties (24/24)
Uninsured rate
6.4%
Unweighted mean across reporting counties (24/24)
County health score
72.6/100
Unweighted mean across reporting counties (24/24)
How to read this state summary
A distribution of county estimates, not resident prevalence
Counties are equally weighted in every summary below. Missing or suppressed counties are excluded per measure, so coverage can differ from one measure to another. These values describe the distribution of published county estimates; the source data does not include the measure denominators needed to estimate a resident-level statewide prevalence.
- Middle half of county scores
- 56.5–88.4
- Median county score
- 78.1
- Reporting coverage
- 100%
Highest County Health Scores
CDC PLACES 2022–2023 measure years
County-estimate coverage for selected measures
Obesity
36.4%
Unweighted mean across reporting counties
Median 36.8% · range 25.9–41.9% · 24/24 counties
Diabetes
10.7%
Unweighted mean across reporting counties
Median 10.4% · range 8.5–13.7% · 24/24 counties
Lack of health insurance (18–64)
8.7%
Unweighted mean across reporting counties
Median 8.4% · range 6–13% · 24/24 counties
Counties are equally weighted. Missing or suppressed counties are excluded per measure. The summaries describe county estimates, not resident prevalence.
Compare nationally
Put Maryland's county estimates in context
Open an existing CDC PLACES ranking to compare reporting counties using the measure’s published estimate year.
All Maryland Counties
| County | Health Score |
|---|---|
| Howard County | 99/100 |
| Calvert County | 93/100 |
| Anne Arundel County | 91/100 |
| Carroll County | 91/100 |
| Frederick County | 90/100 |
| Harford County | 90/100 |
| Queen Anne's County | 88/100 |
| Montgomery County | 88/100 |
| Talbot County | 80/100 |
| Baltimore County | 80/100 |
| Worcester County | 79/100 |
| Charles County | 79/100 |
| St. Mary's County | 77/100 |
| Kent County | 76/100 |
| Cecil County | 66/100 |
| Garrett County | 65/100 |
| Prince George's County | 61/100 |
| Washington County | 57/100 |
| Allegany County | 56/100 |
| Wicomico County | 54/100 |
| Dorchester County | 50/100 |
| Somerset County | 47/100 |
| Baltimore city | 44/100 |
| Caroline County | 43/100 |
— = data pending.
Looking for health insurance?
eHealth lets you compare plans from top carriers — individual, family, and Medicare.
Independent third-party service
Data Sources
Health data sourced from the County Health Rankings & Roadmaps 2025, published by the University of Wisconsin Population Health Institute with support from the Robert Wood Johnson Foundation .
Data is informational only. Not medical or health advice. Coverage varies by county and reporting year.