Williamson County Health Data
Williamson County, Texas
CDC County Health RankingsHealth Score
74/100
Average
Life Expectancy
80.7 yr
Uninsured Rate
10.4%
Health Statistics
Life Expectancy
80.7 yr
State avg 74.3 yr
National avg 77.5 yr
Uninsured Rate
10.4%
State avg 19.8%
National avg 9%
Primary Care Providers
68
per 100K population
National avg 82
Mental Health Providers
178
per 100K population
National avg 350
Poor / Fair Health
15.0%
State avg 23.6%
National avg 19.6%
Healthcare Access
Primary Care Physicians
10.1
per 100K residentsCDC: 68.3 per 100K
Dentists
6.7
per 100K residents
Nurse Practitioners & PAs
6.4
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 | 32.1% | 37.7% | 37.6% | 5.6 pts better than state |
| Diabetes | 9.5% | 12.6% | 11.2% | 3.1 pts better than state |
| High Blood Pressure | 28.6% | 33.6% | 33.5% | 5.0 pts better than state |
| Depression | 20.4% | 22.9% | 24.1% | 2.5 pts better than state |
Health-risk behaviors
| Measure | Williamson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Current Cigarette Smoking | 9.6% | 15.1% | 16.3% | 5.5 pts better than state |
| Binge Drinking | 17.1% | 18.0% | 17.8% | 0.9 pts better than state |
| Physical Inactivity | 22.4% | 30.2% | 27.0% | 7.8 pts better than state |
Preventive-care uptake
| Measure | Williamson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Annual Routine Checkup | 75.0% | 72.2% | 74.9% | 2.8 pts better than state |
| Dental Visit (past year) | 64.3% | 51.0% | 57.3% | 13.3 pts better than state |
| Mammography (women 50–74) | 77.4% | 70.6% | 73.3% | 6.8 pts better than state |
Daily-life impact
| Measure | Williamson | State avg | National avg | Vs state |
|---|---|---|---|---|
| Frequent Mental Distress | 15.6% | 18.5% | 18.6% | 2.9 pts better than state |
| Short Sleep Duration | 32.9% | 39.4% | 37.3% | 6.5 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 surpasses state and national averages
Health data brief for Williamson County, Texas.
Williamson County residents have a life expectancy of 80.7 years, which is notably higher than the Texas average of 74.3 years and the national average of 77 years. The county’s uninsured rate is 10.4%, which is nearly half the state average of 19.8% and aligns closely with the national average of 10%. Additionally, 15.0% of adults report poor or fair health, a lower percentage than the national average of 17%. The county has 68 primary care providers per 100,000 residents, nearly matching the national median of 70. Mental health provider availability is 178 per 100,000 residents, which is below the national median of 250. Explore state-level data.
Sources
- CDC County Health Rankings v2
- HHS NPPES
Get Care in Williamson County, Texas
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 →Baylor Scott & White Medical Center - Round Rock
ERAscension Seton Williamson
ERRound Rock Medical Center
EReHealth Insurance
Compare health insurance plans from top carriers for Williamson County residents.
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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.