Williamson County Health Data
Williamson County, Tennessee
CDC County Health RankingsHealth Score
95/100
Excellent
Life Expectancy
81.5 yr
Uninsured Rate
5.7%
Health Statistics
Life Expectancy
81.5 yr
State avg 72.4 yr
National avg 77.5 yr
Uninsured Rate
5.7%
State avg 11.9%
National avg 9%
Primary Care Providers
138
per 100K population
National avg 82
Mental Health Providers
273
per 100K population
National avg 350
Poor / Fair Health
11.5%
State avg 22.4%
National avg 19.6%
Healthcare Access
Primary Care Physicians
17.3
per 100K residentsCDC: 138.0 per 100K
Dentists
5.5
per 100K residents
Nurse Practitioners & PAs
6.7
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 Williamson County differs most from state and national norms.
Most prevalent chronic conditions
| Measure | Williamson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Obesity | 28.7% | 39.9% | 37.6% | 11.2 pts better than state |
| Diabetes | 8.5% | 12.3% | 11.2% | 3.8 pts better than state |
| High Blood Pressure | 31.1% | 37.1% | 33.5% | 6.0 pts better than state |
| Depression | 25.6% | 30.8% | 24.1% | 5.2 pts better than state |
Health-risk behaviors
| Measure | Williamson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Current Cigarette Smoking | 10.1% | 20.7% | 16.3% | 10.6 pts better than state |
| Binge Drinking | 16.3% | 15.6% | 17.8% | 0.7 pts worse than state |
| Physical Inactivity | 17.3% | 28.4% | 27.0% | 11.1 pts better than state |
Preventive-care uptake
| Measure | Williamson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Annual Routine Checkup | 76.6% | 75.4% | 74.9% | 1.2 pts better than state |
| Dental Visit (past year) | 71.8% | 54.4% | 57.3% | 17.4 pts better than state |
| Mammography (women 50–74) | 80.1% | 71.9% | 73.3% | 8.2 pts better than state |
Daily-life impact
| Measure | Williamson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Frequent Mental Distress | 16.0% | 21.7% | 18.6% | 5.7 pts better than state |
| Short Sleep Duration | 33.7% | 40.0% | 37.3% | 6.3 pts better than state |
These rates are part of the CDC PLACES survey. Compare Williamson 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
Williamson County Life Expectancy Exceeds State and National Averages
Health data brief for Williamson County, Tennessee.
Williamson County residents have a life expectancy of 81.5 years, a figure that is significantly higher than both the Tennessee state average of 72.4 years and the national average of 77 years. The county's uninsured rate is 5.7%, which is less than half the state average of 11.9% and lower than the national average of 10%. Additionally, 11.5% of adults report poor or fair health, which is lower than the national average of 17%. Healthcare provider ratios are higher than national medians, with 138 primary care providers per 100,000 residents compared to the national median of 70, and 273 mental health providers per 100,000 compared to the national median of 250. These metrics highlight the health profile of the county according to recent federal data. See the CDC County Health Rankings methodology.
Sources
- CDC County Health Rankings v2
- HHS NPPES
Get Care in Williamson County, Tennessee
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 →Williamson Medical Center
ERRolling Hills Psychiatric Hospital
EReHealth Insurance
Compare health insurance plans from top carriers for Williamson County residents.
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Frequently Asked Questions
What is the health ranking of Williamson County, TN?
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How does Williamson County health compare to the Tennessee average?
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Why is Williamson County healthier than the Tennessee 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.