Health Profile of New Castle County, Delaware

New Castle 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.

  • B
    New Castle County Around average
    Healthiest county in Delaware

Source: Map AI Methodology

New Castle County
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Health grade

General Health Overview

See health data visualized

Metric New Castle County Delaware Avg US Average
Life Expectancy (years) 77.8 77.7 78.3
Uninsured Population (%) 5.9% 6.3% 8.4%
Self-Rated Poor Health 14.2% 14.8% 16.3%

Life expectancy in New Castle County is 77.8 years, about 0.1 years longer than the Delaware average of 77.7 years. The uninsured rate is 5.9%, lower than the Delaware average of 6.3%. Self-rated poor health is reported by 14.2% of residents, lower than the Delaware average of 14.8%.

Population by Age

Older residents

200,288 residents in New Castle County are age 50 or older.

  • 85+ 11,140 3,967 men · 7,173 women
  • 75–84 27,068 11,295 men · 15,773 women
  • 65–74 50,655 23,119 men · 27,536 women
  • 50–64 111,426 54,640 men · 56,785 women

Younger residents

118,954 residents in New Castle County are age 17 or younger.

  • 12–17 38,741 19,485 boys · 19,256 girls
  • 7–12 34,945 17,826 boys · 17,120 girls
  • 3–7 25,864 13,232 boys · 12,632 girls
  • 0–3 19,404 9,841 boys · 9,563 girls
Beyond life expectancy

About 29,361 residents in New Castle County (5.1% of the population) are older than the area's life expectancy of 77.8 years.

77.8 yrs
Age 0 Age 100

The highlighted slice of the age axis is the share of residents older than the life-expectancy mark.

Disease Prevalence

Disease / Condition New Castle County Delaware Avg US Average
Diabetes 10.8% 11.5% 11.3%
Cancer 6.0% 7.0% 6.9%
Heart Diseases 5.8% 6.9% 7.1%
Adult Obesity 34.3% 36.6% 34.3%

The rate of heart disease in New Castle County is about 16% lower than in Delaware.

Health Behaviors

Behavior New Castle County Delaware Avg US Average
Smokers 16.2% 17.3% 19.0%
Binge Drinking 17.0% 14.7% 16.5%
Sedentary Lifestyle 24.0% 26.2% 25.1%

The rate of binge drinking in New Castle County is about 15% higher than in Delaware.

Assuming each smoker smokes 10 cigarettes a day, that's about 735,155 cigarettes a day, 22.1 million a month, or 268.3 million a year! At 11 minutes* of life lost per cigarette, that's about 8.1 million minutes a day and 3.0 billion a year lost to smoking overall - and since life expectancy in New Castle County is 77.8 years, that's roughly equivalent to 0.20 lifetimes a day, or 72 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 New Castle County Delaware Avg US Average
Air Pollution (μg/m³) 7.07 6.57 6.09

With an annual average of 7.1 µg/m³ of fine particulate matter (PM2.5), air quality in New Castle County is good — generally safe air quality for the vast majority of residents.

New Castle County, DE Health Compared With Nearby Counties

New Castle County, DE is the 2nd largest of the 6 counties compared here, 577,338 residents against a local median of 187,603. Where New Castle County, DE breaks from the counties next to it is uninsured, sitting 28% above the local median of 4.6% at 5.9%. That is the weaker end of the local range on this measure.

The counties themselves spread 3.0% on uninsured, so New Castle County, DE sits at one end of an already wide local range rather than apart from it. New Castle County, DE has the 5th lowest uninsured of the 6 areas compared here.

Area Population Life expectancy Uninsured Obesity
New Castle County, DE 577,338 77.8 yrs #2/6 5.9% #5/6 34.3% #3/6
Salem County, NJ 65,196 77.0 yrs 4.7% 36.5%
Cecil County, MD 104,960 76.7 yrs 3.6% 38.4%
Chester County, PA 543,223 80.8 yrs 4.4% 30.6%
Delaware County, PA 578,234 77.6 yrs 4.6% 30.0%
Kent County, DE 187,603 76.8 yrs 6.6% 38.5%

Conclusion

Considering all these factors, New Castle County, Delaware has an overall health index grade of B, making it somewhat better than Delaware, and somewhat better than the country as a whole.

Frequently Asked Questions

Common questions about health in New Castle County, Delaware.

Is New Castle County, Delaware a healthy place to live?

New Castle County, Delaware has a Map AI Health Index grade of B, based on life expectancy, disease rates, healthcare access, and the physical environment; a B grade means residents are somewhat healthier than the U.S. average.

Is New Castle County, Delaware one of the healthiest counties in Delaware?

Yes. New Castle County ranks 1st of 3 counties in Delaware by the Map AI Health Index, making it the healthiest of them all.

What is the average lifespan in New Castle County, Delaware?

People in New Castle County, Delaware can expect to live 77.8 years on average, about the same as the Delaware average of 77.7.

What percentage of New Castle County, Delaware residents are uninsured?

5.9% of residents in New Castle County, Delaware have no health insurance, about 1 in 17 people, about the same as the Delaware rate of 6.3%.

What percentage of New Castle County, Delaware residents are obese?

34.3% of adults in New Castle County, Delaware are classified as obese, about 1 in 3, 2.2 points below the Delaware rate of 36.6%.

How many cigarettes do smokers in New Castle County, Delaware go through, and how much life does that cost?

Assuming each smoker smokes 10 cigarettes a day, that's about 735,155 cigarettes a day, 22.1 million a month, or 268.3 million a year! At 11 minutes* of life lost per cigarette, that's about 8.1 million minutes a day and 3.0 billion a year lost to smoking overall - and since life expectancy in New Castle County is 77.8 years, that's roughly equivalent to 0.20 lifetimes a day, or 72 lifetimes a year.

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