South Korea, home to some of the world’s largest chipmakers and advanced manufacturers, has entered a demographic phase that economists say could reshape the country’s economic model long before most developed nations face the same challenge.
The country has officially become a super-aged society, with more than 20% of its population now aged 65 or older. But the bigger concern is not that South Koreans are living longer. It is that the workforce supporting one of the world’s most export-dependent economies is shrinking at an unprecedented pace.
According to South Korea’s National Data Agency, the country’s population aged 65 and older reached 10.72 million in 2025, increasing by about 601,000 from a year earlier. At the same time, the working-age population fell to 35.87 million, dropping below 70% of the total population for the first time since annual records began in 2015.
The longer-term trend is even more striking. Since 2020, South Korea has lost roughly 1.42 million working-age residents while adding about 2.44 million senior citizens. That means the country has added nearly two retirees for every worker it has lost over the past five years.
The demographic shift matters because South Korea is not simply another aging economy. It is one of the world’s largest exporters of semiconductors, automobiles, ships and consumer electronics, industries that rely on maintaining both a skilled workforce and steady productivity growth.
As fewer workers enter the labor market, economists expect slower economic growth, a smaller tax base and rapidly rising spending on pensions, healthcare and long-term care.
The Korea Development Institute, South Korea’s state-run economic think tank, projects that declining labor input will begin weighing on economic growth around 2030. Without stronger productivity gains or structural reforms, the country’s potential growth rate could fall to around 1% by the end of the decade and approach zero during the 2040s.
That outlook is pushing policymakers toward a strategy centered less on population growth and more on productivity.
Government officials and economists increasingly argue that artificial intelligence, robotics and automation will need to expand beyond factories into service industries such as retail, logistics, hospitality and elder care. The Korea Development Institute estimates that faster productivity growth driven by AI adoption and broader economic reforms could allow South Korea to maintain positive growth into the 2050s despite its shrinking labor force.
The country is also reconsidering how long people remain in their primary careers.
Although South Korea reports one of the OECD’s highest employment rates among people aged 65 to 69, many older workers leave stable career positions only to return in lower-paying and less secure jobs. Economists argue that extending retirement alone will not solve the problem unless companies also move away from seniority-based pay systems and allow experienced employees to remain in skilled positions longer.
Immigration has provided only partial relief.
The number of foreign working-age residents increased by about 50,000 over the past year, offsetting only around 11% of the decline in South Korea’s domestic workforce. In several rural counties and manufacturing hubs, however, foreign workers have already become essential to keeping farms, factories and local businesses operating.
Experts say that means immigration policy can no longer focus solely on supplying temporary labor. Housing, education, healthcare and long-term settlement policies will become increasingly important if foreign workers are expected to support regional economies over the coming decades.
South Korea’s demographic challenge has been anticipated for years, but the pace of the transition is forcing faster decisions. Rather than waiting for higher birth rates to reverse the trend—a process that would take decades before new workers enter the labor market—the country is betting that technology, longer careers and selective immigration can sustain economic growth with fewer workers.
For other advanced economies confronting aging populations, South Korea is becoming one of the first large-scale tests of whether productivity can replace population growth as the primary engine of economic expansion.
