Health Profile of Williamson County, Tennessee
Williamson County Health Score
The Map AI Health Index is a score that reflects local life expectancy, disease rates, healthcare access, and physical environment to help you quickly compare the overall health and well-being of different areas.
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A
Williamson County Above averageHealthiest county in Tennessee
Source: Map AI Methodology
General Health Overview
| Metric | Williamson County | Tennessee Avg | US Average |
|---|---|---|---|
| Life Expectancy (years) | 81.2 | 74.8 | 78.3 |
| Uninsured Population (%) | 4.4% | 10.0% | 8.4% |
| Self-Rated Poor Health | 9.9% | 19.5% | 16.3% |
Life expectancy in Williamson County is 81.2 years, about 6.4 years longer than the Tennessee average of 74.8 years. The uninsured rate is 4.4%, lower than the Tennessee average of 10.0%. Self-rated poor health is reported by 9.9% of residents, lower than the Tennessee average of 19.5%.
Population by Age
Older residents
84,130 residents in Williamson County are age 50 or older.
- 85+ 3,049 1,100 men · 1,949 women
- 75–84 9,080 3,901 men · 5,178 women
- 65–74 19,104 9,182 men · 9,923 women
- 50–64 52,897 25,898 men · 26,998 women
Younger residents
67,445 residents in Williamson County are age 17 or younger.
- 12–17 22,238 11,441 boys · 10,797 girls
- 7–12 21,176 10,852 boys · 10,324 girls
- 3–7 14,555 7,402 boys · 7,153 girls
- 0–3 9,475 4,838 boys · 4,637 girls
About 5,684 residents in Williamson County (2.2% of the population) are older than the area's life expectancy of 81.2 years.
The highlighted slice of the age axis is the share of residents older than the life-expectancy mark.
Disease Prevalence
| Disease / Condition | Williamson County | Tennessee Avg | US Average |
|---|---|---|---|
| Diabetes | 8.9% | 13.6% | 11.3% |
| Cancer | 6.7% | 7.0% | 6.9% |
| Heart Diseases | 5.0% | 8.1% | 7.1% |
| Adult Obesity | 29.6% | 37.9% | 34.3% |
The rate of heart disease in Williamson County is about 38% lower than in Tennessee. The rate of diabetes in Williamson County is about 35% lower than in Tennessee. The rate of obesity in Williamson County is about 22% lower than in Tennessee.
Health Behaviors
| Behavior | Williamson County | Tennessee Avg | US Average |
|---|---|---|---|
| Smokers | 13.4% | 25.1% | 19.0% |
| Binge Drinking | 16.0% | 13.8% | 16.5% |
| Sedentary Lifestyle | 17.0% | 28.4% | 25.1% |
The rate of smoking in Williamson County is about 47% lower than in Tennessee. The rate of sedentary lifestyle in Williamson County is about 40% lower than in Tennessee. The rate of binge drinking in Williamson County is about 16% higher than in Tennessee.
Assuming each smoker smokes 10 cigarettes a day, that's about 258,505 cigarettes a day, 7.8 million a month, or 94.4 million a year! At 11 minutes* of life lost per cigarette, that's about 2.8 million minutes a day and 1.0 billion a year lost to smoking overall - and since life expectancy in Williamson County is 81.2 years, that's roughly equivalent to 0.07 lifetimes a day, or 24 lifetimes a year.
* Source: Shaw M, Mitchell R, Dorling D. "Time for a smoke? One cigarette reduces your life by 11 minutes." BMJ. 2000;320:53.
Illustrative only. This is not an estimate of how many people actually die from smoking each day or year - it's a rough, order-of-magnitude comparison meant to help grasp the scale of smoking in this area. We take no responsibility for any decisions made based on this figure.
Air Quality
| Metric | Williamson County | Tennessee Avg | US Average |
|---|---|---|---|
| Air Pollution (μg/m³) | 6.94 | 6.39 | 6.09 |
With an annual average of 6.9 µg/m³ of fine particulate matter (PM2.5), air quality in Williamson County is good — generally safe air quality for the vast majority of residents.
Williamson County, TN Health Compared With Nearby Counties
Williamson County, TN is the 3rd largest of the 6 counties compared here, 260,351 residents against a local median of 107,806. The measure that sets Williamson County, TN apart most is uninsured: 4.4%, 56% below the local median of 10.0%. That is the better end of the local range on this measure.
Obesity tells the same story from another angle: 29.6% against a local median of 37.2%, 20% below it. Every measure here with a clear better direction points the same way, so Williamson County, TN is not trading one advantage for another, it reads stronger than its neighbours across the board. The counties themselves sit within 4.0% of each other on uninsured, a tighter band than the gap between any of them and Williamson County, TN, which makes it a genuine outlier here rather than one end of a wide local spread. Williamson County, TN has the lowest uninsured of the 6 areas compared here.
| Area | Population | Life expectancy | Uninsured | Obesity |
|---|---|---|---|---|
| Williamson County, TN | 260,351 | 81.2 yrs #1/6 | 4.4% #1/6 | 29.6% #1/6 |
| Davidson County, TN | 713,477 | 76.5 yrs | 12.5% | 32.3% |
| Maury County, TN | 107,806 | 76.6 yrs | 8.5% | 40.1% |
| Cheatham County, TN | 41,825 | 75.0 yrs | 8.6% | 35.3% |
| Marshall County, TN | 36,049 | 75.3 yrs | 10.4% | 37.2% |
| Rutherford County, TN | 357,384 | 77.4 yrs | 10.0% | 38.6% |
Conclusion
Considering all these factors, Williamson County, Tennessee has an overall health index grade of A, making it far better than Tennessee, and notably better than the country as a whole.
Frequently Asked Questions
Common questions about health in Williamson County, Tennessee.
How healthy is Williamson County, Tennessee?
Williamson County, Tennessee has a Map AI Health Index grade of A, based on life expectancy, disease rates, healthcare access, and the physical environment; an A grade means residents are much healthier than the U.S. average.
Is Williamson County, Tennessee one of the healthiest counties in Tennessee?
Yes. Williamson County ranks 1st of 95 counties in Tennessee by the Map AI Health Index, making it the healthiest of them all.
What is the average lifespan in Williamson County, Tennessee?
People in Williamson County, Tennessee can expect to live 81.2 years on average, 6.4 years longer than the Tennessee average of 74.8.
How many people lack health insurance in Williamson County, Tennessee?
4.4% of residents in Williamson County, Tennessee have no health insurance, about 1 in 23 people, 5.6 points below the Tennessee rate of 10.0%.
What is the obesity rate in Williamson County, Tennessee?
29.6% of adults in Williamson County, Tennessee are classified as obese, about 1 in 3, 8.3 points below the Tennessee rate of 37.9%.
How many cigarettes do smokers in Williamson County, Tennessee go through, and how much life does that cost?
Assuming each smoker smokes 10 cigarettes a day, that's about 258,505 cigarettes a day, 7.8 million a month, or 94.4 million a year! At 11 minutes* of life lost per cigarette, that's about 2.8 million minutes a day and 1.0 billion a year lost to smoking overall - and since life expectancy in Williamson County is 81.2 years, that's roughly equivalent to 0.07 lifetimes a day, or 24 lifetimes a year.
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