The 5 states with the longest life expectancies, and the 5 with the shortest

The exterior of the Mississippi Capitol with gardens in front of it.
Mississippi has the lowest life expectancy in the US.Chad Robertson Media/Shutterstock
  • A new study suggests human life expectancy is plateauing.

  • In 2022, life expectancy in the US was 77.5 years, but values vary across states.

  • Hawaii has the longest life expectancy, while Mississippi has the shortest.

As antiaging regimens and longevity treatments continue to gain traction, a new study suggests humans may have reached a roadblock on their quest for longer lifespans.

On Monday, Nature Aging published an analysis suggesting human life expectancy was plateauing after decades of progress.

The study's lead author, S. Jay Olshansky, who's a biostatistician at the University of Illinois, Chicago, told Business Insider's Hilary Brueck that "we've got a lot of people making it out to 85 or 90" but that "100 isn't going to happen for most people."

A 2022 report by the Centers for Disease Control and Prevention's National Center for Health Statistics found the average life expectancy in the US was 77.5 years. But the value varies across states, as factors such as environment, diet, exercise, genetics, access to healthcare, and other lifestyle choices contribute to differences.

Using the CDC's National Center for Health Statistics 2021 report — the most recent CDC state data available — here are the five states with the longest life expectancies and the five states with the shortest.

HIGHEST: 5. New Jersey

Tall buildings in Downtown Newark, New Jersey.
New Jersey has the fifth-longest life expectancy in the US.Leonid Andronov/Shutterstock

Life expectancy: 79.0 years

The "Garden State" has the fifth-longest life expectancy in the US, according to the CDC data.

In its 2023 American Community Survey one-year estimates, the Census Bureau said 92.8% of residents had health insurance compared with 92.1% of Americans nationally. The CDC's Behavioral Risk Factor Surveillance System 2022 also found that adults in New Jersey reported the second-lowest rates of depressive disorders.

The state was named the third-best state to live in by the personal-finance company WalletHub, which compared US states in terms of affordability, economy, education and health, quality of life, and safety. It was also named the third happiest state in the country.

4. New York

An aerial view of High Falls in Rochester, New York.
New York has the fourth-longest life expectancy in the country.Wirestock Creators/Shutterstock

Life expectancy: 79.0 years

New York, which WalletHub ranked the ninth-best state to live in, also has a life expectancy of 79 years. Just 4.8% of residents are estimated to be without healthcare coverage. Adults in the state also reported some of the lowest levels of depressive disorders, at 17.8%.

3. Connecticut

Downtown New Haven, Connecticut, during fall. The trees are varying shades of green, orange, yellow, and red. The sky has an orange tint, too.
Connecticut has the third-longest life expectancy.f11photo/Shutterstock

Life expectancy: 79.2 years

The "Constitution State," which was ranked the seventh happiest in the country, has the third-longest life expectancy in the US at 79.2 years. The Census Bureau estimated that 94.3% of residents had health insurance.

2. Massachusetts

The skyline of Boston's financial district.
Massachusetts has the second-longest life expectancy in the US.VideoFlow/Shutterstock

Life expectancy: 79.6 years

Massachusetts has the second-longest life expectancy in the country. Only 2.6% of the population is estimated to lack healthcare coverage, and in 2022, the American Lung Association reported that 10.4% of adults in the state smoked cigarettes compared with 11.6% of adults nationally.

WalletHub ranked Massachusetts the best state to live in, reporting that it had the best healthcare system in the country. The state has "the lowest share of adults in fair or poor health," the report says.

1. Hawaii

An aerial view of Waikiki Beach in Hawaii with Diamond Head in the background.
Hawaii has the longest life expectancy in the US.James Kirkikis/Shutterstock

Life expectancy: 79.9 years

Hawaii has the longest life expectancy in the country. WalletHub named it the happiest state in the US thanks, in part, to its No. 1 ranking for its residents' emotional and physical well-being.

In the state, 96.8% of residents are estimated to have health insurance.

LOWEST: 5. Kentucky

A street in downtown Louisville, Kentucky.
Kentucky has the fifth-shortest life expectancy in the country.4kclips/Shutterstock

Life expectancy: 72.3 years

Kentucky has the fifth-shortest life expectancy in the US. More than a quarter of adults in the "Bluegrass State" reported being diagnosed with a depressive disorder and 17.4% of adults reported smoking cigarettes.

4. Louisiana

The skyline of downtown New Orleans.
Louisiana has the fourth-shortest life expectancy in the US.Sean Pavone/Shutterstock

Life expectancy: 72.2 years

The "Pelican State" has the fourth-shortest life expectancy in the country, at 72.2 years. WalletHub found that residents in the state reported one of the lowest adequate sleep rates and some of the longest work hours. The American Lung Association also reported that 16.7% of adults in the state smoked cigarettes in 2022.

3. Alabama

The skyline of downtown Mobile, Alabama.
Alabama has the third-shortest life expectancy in the US.Cavan-Images/Shutterstock

Life expectancy: 72.0 years

Alabama has the third-shortest life expectancy. The Census Bureau estimated that 8.5% of people didn't have health insurance. Meanwhile, 15.6% of adults reported smoking cigarettes in 2022. WalletHub also reported that Alabama had one of the lowest sports participation rates and one of the lowest adequate sleep rates.

2. West Virginia

An aerial view of Harpers Ferry, West Virginia.
West Virginia has the second-shortest life expectancy in the US.Firepphotography1/Shutterstock

Life expectancy: 71.0 years

West Virginia has the second-shortest life expectancy. Twenty-one percent of adults reported smoking cigarettes in 2022, the highest percentage in the country. The "Mountain State" also has one of the highest rates of adults who reported having depressive disorders, at 26.9%.

1. Mississippi

The Mississippi Capitol in Jackson, Mississippi.
Mississippi has the shortest life expectancy in the US.Chad Robertson Media/Shutterstock

Life expectancy: 70.9 years

Mississippi has the shortest life expectancy in the US, at 70.9 years.

WalletHub, which ranked Mississippi the sixth-worst state to live in, reported that nearly one in five of the state's residents lived in poverty. Mississippi also has high infant mortality rates, with Black infants disproportionately affected. It also has the lowest sports participation rate in the country and high rates of obesity. Employees also often work longer hours than the national average.

Among its residents, 10.3% are estimated to be without health insurance, while 20.5% of adults reported being diagnosed with depressive disorders, and 17.4% reported smoking cigarettes.

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