Merrimack County Health Data
Merrimack County, New Hampshire
CDC County Health RankingsHealth Score
86/100
Excellent
Life Expectancy
79.0 yr
Uninsured Rate
6.9%
Health Statistics
Life Expectancy
79.0 yr
State avg 78.3 yr
National avg 77.5 yr
Uninsured Rate
6.9%
State avg 6.7%
National avg 9%
Primary Care Providers
99
per 100K population
National avg 82
Mental Health Providers
540
per 100K population
National avg 350
Poor / Fair Health
13.0%
State avg 14.0%
National avg 19.6%
Healthcare Access
Primary Care Physicians
28.4
per 100K residentsCDC: 98.6 per 100K
Dentists
5.8
per 100K residents
Nurse Practitioners & PAs
12.9
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 Merrimack County differs most from state and national norms.
Most prevalent chronic conditions
| Measure | Merrimack | State avg | National avg | Vs state |
|---|---|---|---|---|
| Obesity | 33.2% | 31.7% | 37.6% | 1.5 pts worse than state |
| Diabetes | 7.4% | 7.8% | 11.2% | near state average |
| High Blood Pressure | 27.5% | 28.1% | 33.5% | 0.6 pts better than state |
| Depression | 24.6% | 24.6% | 24.1% | near state average |
Health-risk behaviors
| Measure | Merrimack | State avg | National avg | Vs state |
|---|---|---|---|---|
| Current Cigarette Smoking | 10.9% | 11.9% | 16.3% | 1.0 pts better than state |
| Binge Drinking | 16.9% | 17.9% | 17.8% | 1.0 pts better than state |
| Physical Inactivity | 18.8% | 20.0% | 27.0% | 1.2 pts better than state |
Preventive-care uptake
| Measure | Merrimack | State avg | National avg | Vs state |
|---|---|---|---|---|
| Annual Routine Checkup | 76.9% | 74.0% | 74.9% | 2.9 pts better than state |
| Dental Visit (past year) | 68.8% | 65.7% | 57.3% | 3.1 pts better than state |
| Mammography (women 50–74) | 80.8% | 77.3% | 73.3% | 3.5 pts better than state |
Daily-life impact
| Measure | Merrimack | State avg | National avg | Vs state |
|---|---|---|---|---|
| Frequent Mental Distress | 16.7% | 17.0% | 18.6% | near state average |
| Short Sleep Duration | 33.0% | 34.0% | 37.3% | 1.0 pts better than state |
These rates are part of the CDC PLACES survey. Compare Merrimack County nationally on mammography (women 50–74).
Source: CDC PLACES, 2023 release · age-adjusted prevalence (%). Confidence intervals are available on individual rankings pages.
Data Story
High Mental Health Provider Availability in Merrimack County
Health data brief for Merrimack County, New Hampshire.
Merrimack County features a mental health provider ratio of 540 per 100,000 residents, which is more than twice the national median of 250 per 100,000. In addition to specialized care, the county reports 99 primary care providers per 100,000, surpassing the national median of 70. Life expectancy for residents is 79.0 years, which is higher than both the state average of 78.3 years and the national average of 77 years. The uninsured rate is 6.9%, nearly identical to the New Hampshire state average of 6.7% and lower than the national rate of 10%. Furthermore, only 13.0% of residents report poor or fair health, compared to the 17% national average. These statistics are compiled from federal health and provider databases for public review. See the CDC County Health Rankings methodology.
Sources
- CDC County Health Rankings v2
- HHS NPPES
Get Care in Merrimack County, New Hampshire
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 →Concord Hospital
New London Hospital
ERConcord Hospital- Franklin
EReHealth Insurance
Compare health insurance plans from top carriers for Merrimack County residents.
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Frequently Asked Questions
What is the health ranking of Merrimack County, NH?
What is the life expectancy in Merrimack County?
How does Merrimack County health compare to the New Hampshire average?
What health factors affect Merrimack County?
Is Merrimack County a healthy place to live?
Why is Merrimack County healthier than the New Hampshire average?
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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.