On October 1, 2026, Jimmy Carter would have turned 102 years old.
For many Americans, Carter will always be remembered first as the 39th president of the United States: the Georgia peanut farmer who reached the White House, served a single term, and then suffered one of the most decisive presidential defeats of the modern era.
But that political summary leaves out the part of Jimmy Carter’s life that eventually became impossible to ignore.
After leaving Washington, Carter had decades ahead of him. He could have spent them giving lucrative speeches, joining corporate boards, building a presidential fortune or simply enjoying retirement. Instead, he returned to a modest house in Plains, Georgia, picked up tools to help build homes for strangers and devoted much of the rest of his life to causes that offered him little glamour and no political comeback.
One of those causes became especially personal: the effort to eradicate Guinea worm disease.
When the Carter Center joined the global campaign against Guinea worm in 1986, an estimated 3.5 million human cases occurred each year across 21 countries. In 2025, only 10 human cases were reported worldwide.
Carter did not live to see the number reach zero.
But he came astonishingly close.
And perhaps nothing captures the man he became after the presidency better than something that happened when he was 95 years old.
A Fall, 14 Stitches—and a Construction Site Waiting
In October 2019, Jimmy Carter fell at his home in Plains.
He struck his head badly enough to require 14 stitches and was left with a bruised and swollen eye. For almost anyone his age, that would have been more than enough reason to cancel every commitment on the calendar.
Carter had another idea.
The following day, he traveled to Nashville for a Habitat for Humanity project.
Photographs from the event showed the former president wearing a baseball cap over a bandage, his left eye visibly bruised. Yet there he was, surrounded by volunteers and preparing to work.
It wasn’t an isolated publicity appearance. By then, Carter and his wife Rosalynn had spent more than three decades working alongside Habitat for Humanity volunteers.
The relationship began in 1984. Over the decades that followed, the Carters worked with more than 104,000 volunteers in 14 countries, helping build, renovate or repair 4,390 homes through the projects in which they participated.
That distinction matters: Jimmy Carter did not found Habitat for Humanity. He and Rosalynn became its most famous volunteers and advocates. Their involvement dramatically increased public awareness of affordable housing and helped inspire generations of volunteers.
For Carter, it wasn’t enough to write checks or lend his name.
He showed up.
He carried lumber. He hammered nails. He worked alongside homeowners and volunteers.
Even when he was 95.
Even with stitches in his forehead.
The image seemed almost absurd: a former president of the United States, injured the previous day, standing on a construction site because he had promised to be there.
But viewed against the rest of Carter’s post-presidential life, it made perfect sense.
The President Who Went Home
When Carter left the White House in January 1981, he returned to Georgia under circumstances very different from those enjoyed by many former presidents.
His defeat to Ronald Reagan had been overwhelming. Carter carried only six states plus the District of Columbia in the 1980 election.
There would be no second term.
There would also be no attempt to construct the kind of celebrity lifestyle that has become available to modern former presidents.
Jimmy and Rosalynn returned to Plains.
The house they lived in became one of the most revealing symbols of Carter’s post-presidential years. It was the two-bedroom ranch house the couple had built decades earlier.
A 2018 Washington Post profile noted something extraordinary: the house was assessed at $167,000 at the time—less than the value of the armored Secret Service vehicles parked outside it.
Think about that image.
A former commander in chief inside a modest Georgia home, protected by vehicles worth more than the building they were guarding.
The Carters remained there.
There were no sprawling presidential compounds or dramatic displays of wealth. Carter flew commercially and continued participating in the everyday life of Plains.
He also taught Sunday school.
Long after the presidency had become history, people traveled to the small Georgia town to hear the former president discuss scripture at Maranatha Baptist Church. By 2018, according to The Washington Post, Carter had taught his 800th Sunday school lesson since leaving office.
It became another form of showing up.
But Carter’s greatest post-presidential project would stretch far beyond Georgia.
A Tiny Parasite Became One of Carter’s Biggest Battles
Guinea worm disease sounds like something from another century.
In many ways, it is.
Dracunculiasis—commonly called Guinea worm disease—is a parasitic infection associated with contaminated drinking water. After infection, the parasite develops inside the human body for roughly 10 to 14 months before the mature worm emerges, often through a painful skin lesion.
There was no vaccine that could simply end the crisis.
There was no miracle drug that could be distributed to millions of people.
Eradication depended largely on breaking transmission: detecting cases, protecting drinking-water sources, filtering water, educating communities and preventing infected people or animals from contaminating water.
In the mid-1980s, the scale of the problem was staggering.
When the Carter Center assumed leadership in the global eradication campaign in 1986, approximately 3.5 million people were contracting Guinea worm every year across 21 countries in Africa and Asia.
Three and a half million.
Every year.
Carter decided this was a problem worth spending decades trying to solve.
It was exactly the kind of cause that suited his post-presidential philosophy. There were no glamorous galas required to remove Guinea worm from isolated villages. There was painstaking public-health work, diplomacy, surveillance and thousands upon thousands of conversations with communities.
Progress came slowly.
Then dramatically.
Millions of cases became hundreds of thousands.
Hundreds of thousands became thousands.
Thousands became hundreds.
Hundreds became dozens.
By the time Carter entered his 90s, something once considered almost unimaginable had become possible.
Humanity might actually eliminate Guinea worm.
“I Would Like the Last Guinea Worm to Die Before I Do”
Then Carter received devastating news of his own.
In 2015, at age 90, he announced that melanoma had spread to his brain.
He faced his diagnosis publicly and spoke openly about what remained important to him.
One of the things he wanted most was to outlive Guinea worm.
The sentiment became inseparable from his final decades: Carter wanted to see the disease eradicated before he died.
It was an extraordinary ambition for a former president confronting his own mortality.
Not another monument.
Not another political victory.
Not a larger presidential library.
A dead parasite.
Carter survived the cancer scare and lived nearly another decade.
Meanwhile, the number of Guinea worm cases continued falling.
The campaign ultimately reduced human infections by more than 99.99 percent and, according to the Carter Center, prevented more than 100 million cases.
Eradication means zero transmission—not almost zero.
It also requires addressing infections in animals, which have complicated the last stage of the campaign. In 2025, for example, the world recorded only 10 human cases but hundreds of infections in animals.
Carter understood that “almost” was not the same thing as finished.
So the work continued.
From 3.5 Million Cases to Just 10
Jimmy Carter died on December 29, 2024, at the age of 100.
He did not quite outlive the last Guinea worm.
But look at what happened next.
According to figures released by the Carter Center and reported by the World Health Organization, only 10 human cases were recorded globally in 2025—the lowest annual number ever reported. Four occurred in Chad, four in Ethiopia and two in South Sudan.
Put those numbers beside each other:
1986: approximately 3,500,000 human cases.
2025: 10.
That means annual human incidence has fallen by more than 99.99 percent. WHO describes the disease as being on the verge of eradication
Smallpox remains the only human disease formally eradicated worldwide. If Guinea worm is ultimately eradicated, it would become only the second—and, remarkably, the first eradicated without a vaccine or medicin
Carter didn’t accomplish that alone.
That is important.
The achievement belongs to affected communities, national governments, health workers, the World Health Organization, the Carter Center and numerous international partners who spent decades carrying out the painstaking work necessary to interrupt transmission.
But Carter helped turn an overlooked tropical disease into one of the most determined eradication campaigns in modern public health.
He used the unusual influence of an ex-president on behalf of people many Americans would never meet.
Building Houses Instead of Building a Fortune
The Habitat story tells the same thing in a different way.
Carter could have merely appeared at fundraising events.
Instead, he worked on houses.
From 1984 through 2019, Jimmy and Rosalynn Carter participated alongside more than 104,000 volunteers in projects that built, renovated or repaired 4,390 homes across 14 countries. Habitat for Humanity
Those numbers are large enough to become abstract.
So imagine one house.
A family receives the keys.
Children walk into bedrooms that are finally theirs.
Parents lock their own front door at night.
Now imagine another.
And another.
And another.
Thousands of times.
The Carter Work Project continued after Jimmy and Rosalynn were gone. By 2026, Habitat reported that the project itself had reached 4,496 houses in 14 countries with more than 112,000 volunteers.
That may be one of the clearest measurements of Carter’s legacy: the work became larger than the man.
He showed people what he believed mattered, and others kept doing it.
The Longest Chapter Came After Washington
Jimmy Carter occupied the White House for four years.
He spent more than four decades afterward redefining what a former president could do.
There was election monitoring, diplomacy, disease eradication, affordable housing advocacy, human-rights work and Sunday school.
There were also failures and controversies. Carter’s presidency remains debated by historians, and no serious account of his life requires pretending otherwise.
But something unusual happened as the decades passed.
The presidency became only one chapter of the Jimmy Carter story.
The former president became nearly as recognizable in a hard hat as he had once been behind the Resolute desk.
His life raised an interesting question about legacy: What happens when someone reaches what most people would consider the highest point of a career—and then spends the next 40 years behaving as though the most important work still lies ahead?
Carter answered that question one house, one election, one village and one Sunday school class at a time.
He kept showing up.
The Goal Carter Didn’t Quite Live to See
There is something bittersweet about those 10 Guinea worm cases reported in 2025.
Ten is not zero.
The Carter Center itself acknowledged that its founder didn’t quite achieve his wish of outliving the final Guinea worm. But the organization also emphasized what Carter would likely have insisted upon: the work continues until the number reaches zero.
That might be the most appropriate ending to his story.
Because Carter’s legacy was never really about finishing everything himself.
It was about leaving behind institutions, volunteers, health workers and ordinary people willing to continue.
The man who had once been the most powerful elected official in the United States eventually became famous for holding a hammer.
The president who suffered a crushing reelection defeat became a Nobel Peace Prize laureate and one of the world’s most persistent advocates for neglected communities.
The 90-year-old facing cancer worried about whether a parasite would disappear before he did.
The 95-year-old with stitches in his forehead still had somewhere he believed he needed to be.
And the man who returned to a modest home in Plains after Washington ultimately lived to 100.
Jimmy Carter would have turned 102 this month.
He did not live to see Guinea worm disappear completely.
But when his campaign began, the disease afflicted an estimated 3.5 million people every year.
In 2025, it infected just 10 humans worldwide.
Sometimes a legacy is measured in elections won.
Sometimes it is measured in buildings bearing someone’s name.
And sometimes it is measured by something that is almost gone from the Earth because one person decided, decades earlier, that somebody had to keep showing up.
