A demographic storm is quietly building across the developed world — and experts warn the United States may be next, creating a long-term challenge even President Donald Trump may struggle to fully reverse.
Across Asia and Europe, once-stable nations are facing historic population declines driven by falling birth rates, aging citizens, and shrinking workforces. Now, new projections suggest America could be approaching a moment it has never experienced before: an actual population decline.
The Global Warning Signs Are Flashing
Japan recently declared what officials described as a “quiet emergency” after its birth rate fell to an all-time low. Government data shows the country’s population could plunge from about 124 million today to just 87 million by 2070. With only 1.15 children born per woman, Japan is nowhere near the replacement level needed to sustain its economy.
Japanese Prime Minister Sanae Takaichi did not mince words.
“The greatest challenge facing our country is population decline,” she said — a concern now spreading across China, South Korea, and much of the Western world.
Europe is facing the same reality. Germany’s fertility rate dropped to 1.35 in 2024, the lowest level in nearly two decades. England’s fell again to 1.41. France recorded its fewest births since 1919, prompting President Emmanuel Macron to warn the nation needs a “demographic rearmament” just to survive economically.
America Could Be Next — For the First Time Ever
According to an analysis cited by the American Enterprise Institute, the United States could see its population shrink in 2025 — something that has never happened in nearly 250 years of American history.
Even during the Civil War, when roughly 700,000 Americans were killed, the population still grew. The same was true during the COVID-19 pandemic.
That may no longer be the case.
Analysts estimate net international migration could collapse from roughly 2.8 million annually to as low as negative 525,000. Combined with weak birth numbers, the U.S. could lose thousands of residents in a single year.
The Birth Rate Problem No One Wants to Talk About
The situation is being made worse by a sharp cultural shift at home.
Analysts with the Institute for Family Studies estimate that over the next 30 years, American women will have an average of about 1.6 children each — far short of the level required to sustain population growth.
Their data also shows a steep decline in family formation and intimacy. Only 37 percent of American adults report having sex weekly, down from 55 percent in 1990. Fewer marriages, fewer children, and later family formation are all feeding into the same downward spiral.
Immigration Enforcement Accelerates the Shift
At the same time, immigration levels have fallen sharply under President Trump’s second term.
The Pew Research Center reports the immigrant population dropped by 1.4 million people in the first half of 2025, the first decline in more than 50 years. The shift followed Trump’s aggressive crackdown on illegal border crossings, expanded deportations, and tighter asylum rules.
The Department of Homeland Security says approximately 1.6 million illegal migrants have voluntarily left the country since Trump returned to office. Federal authorities have also arrested more than 359,000 illegal immigrants and deported over 332,000 in the administration’s first 200 days.
Illegal border crossings have reportedly dropped to fewer than 5,000 per month, fulfilling one of Trump’s core campaign promises.
Workforce and Economic Ripples
Even after the decline, immigrants still make up a historically high 15.4 percent of the U.S. population. However, their share of the workforce is shrinking. Immigrant workers now account for about 19 percent of U.S. jobs, down from 20 percent earlier this year — a loss of roughly 750,000 workers.
That decline raises questions about labor shortages, economic growth, Social Security funding, and long-term retirement stability — issues that disproportionately affect older Americans.
A Challenge Bigger Than Any One President
Trump has made it clear that border enforcement remains a top priority. His administration has announced plans to deport up to one million illegal migrants by the end of the year, expand visa enforcement, and increase scrutiny of asylum seekers and foreign-born students.
But experts warn that while immigration enforcement can restore the rule of law, it does not solve the deeper problem: fewer Americans are being born, fewer families are forming, and the nation is aging faster than it is replacing itself.
The demographic math is unforgiving — and unlike political cycles, it cannot be reversed overnight.