Mercer County Health Data
Mercer County, New Jersey
CDC County Health RankingsHealth Score
74/100
Average
Life Expectancy
78.4 yr
Uninsured Rate
8.7%
Health Statistics
Life Expectancy
78.4 yr
State avg 78.5 yr
National avg 77.5 yr
Uninsured Rate
8.7%
State avg 7.5%
National avg 9%
Primary Care Providers
90
per 100K population
National avg 82
Mental Health Providers
410
per 100K population
National avg 350
Poor / Fair Health
14.8%
State avg 15.0%
National avg 19.6%
Healthcare Access
Primary Care Physicians
30.3
per 100K residentsCDC: 90.4 per 100K
Dentists
5.0
per 100K residents
Nurse Practitioners & PAs
12.0
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 Mercer County differs most from state and national norms.
Most prevalent chronic conditions
| Measure | Mercer | State avg | National avg | Vs state |
|---|---|---|---|---|
| Obesity | 25.5% | 29.6% | 37.6% | 4.1 pts better than state |
| Diabetes | 9.8% | 9.2% | 11.2% | 0.6 pts worse than state |
| High Blood Pressure | 28.4% | 29.5% | 33.5% | 1.1 pts better than state |
| Depression | 15.1% | 16.5% | 24.1% | 1.4 pts better than state |
Health-risk behaviors
| Measure | Mercer | State avg | National avg | Vs state |
|---|---|---|---|---|
| Current Cigarette Smoking | 10.7% | 11.5% | 16.3% | 0.8 pts better than state |
| Binge Drinking | 15.2% | 17.3% | 17.8% | 2.1 pts better than state |
| Physical Inactivity | 23.9% | 23.8% | 27.0% | near state average |
Preventive-care uptake
| Measure | Mercer | State avg | National avg | Vs state |
|---|---|---|---|---|
| Annual Routine Checkup | 77.1% | 75.9% | 74.9% | 1.2 pts better than state |
| Dental Visit (past year) | 64.9% | 65.4% | 57.3% | near state average |
| Mammography (women 50–74) | 72.9% | 75.2% | 73.3% | 2.3 pts worse than state |
Daily-life impact
| Measure | Mercer | State avg | National avg | Vs state |
|---|---|---|---|---|
| Frequent Mental Distress | 15.2% | 16.0% | 18.6% | 0.8 pts better than state |
| Short Sleep Duration | 37.0% | 38.1% | 37.3% | 1.1 pts better than state |
These rates are part of the CDC PLACES survey. Compare Mercer County nationally on obesity.
Source: CDC PLACES, 2023 release · age-adjusted prevalence (%). Confidence intervals are available on individual rankings pages.
Data Story
Mental Health Provider Availability High in Mercer County
Health data brief for Mercer County, New Jersey.
Mercer County has 410 mental health providers for every 100,000 residents. This ratio is significantly higher than the national median of 250 providers per 100,000. For primary care, the county reports 90 providers per 100,000 people, which is also above the national median of 70. The local life expectancy is 78.4 years, nearly identical to the New Jersey state average of 78.5 years and higher than the national average of 77 years. Regarding health insurance, 8.7% of residents are uninsured, which is higher than the state average of 7.5% but lower than the national average of 10%. Additionally, 14.8% of the population reports poor or fair health, compared to the 17% seen nationally. See the CDC County Health Rankings methodology.
Sources
- CDC County Health Rankings v2
- HHS NPPES
Get Care in Mercer County, New Jersey
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 →Robert Wood Johnson University Hospital at Hamilton
ERCapital Health Medical Center - Hopewell
ERCapital Health Regional Medical Center
EReHealth Insurance
Compare health insurance plans from top carriers for Mercer County residents.
Compare Plans →HealthMarkets
Licensed agents for health, Medicare, and supplemental insurance in New Jersey.
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Frequently Asked Questions
What is the health ranking of Mercer County, NJ?
What is the life expectancy in Mercer County?
How does Mercer County health compare to the New Jersey average?
What health factors affect Mercer County?
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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.