South Korea has entered an era of 11 million seniors. Statistics Korea puts this year's population aged 65 and over at about 11.12 million, or 21.6% of the total. That means one in five Koreans is 65 or older. Seoul itself crossed the 20% threshold last year, becoming a super-aged city.
Population aging is usually read as a signal of rising support burdens and slowing growth. Seen from another angle, it is also a vast economic shift in which new demand is forming fast. What matters is not only how much the senior population grows. Look at what these people buy, how they work, and what kind of housing, medical care and caregiving services they need, and the outline of a growing market comes into view.
Consumer markets are already changing. According to an analysis by KB Kookmin Card, card spending by customers aged 65 and over rose 143% in 2025 from 2019. The average increase across all age groups over the same period was 34%, which makes the growth of the senior consumer market all the more striking. Over the past year, restaurants accounted for the largest share of card transactions, and 48% of customers at indoor park golf facilities were aged 60 or over, evidence that the range of spending is widening. As consumption that once centered on medical care and basic living expands into dining out, leisure and other areas of daily life and hobbies, a new consumer market is forming around seniors. That also means seniors can no longer be viewed simply as recipients of care and welfare.
The shift is equally clear in financial markets. As of the end of July this year, customers aged 50 and over made up 47.2% of the five major commercial banks' client base, and held 65.9% of their deposit assets. Banks are responding to this change in customer structure by broadening their services from deposits and savings into pension management, retirement planning, and inheritance and gifting. The question of how to manage assets accumulated over a lifetime, and how to draw on them after retirement, is generating new financial demand.
Industry boundaries are also dissolving quickly. The domestic market for senior-friendly industries is projected to grow from about 72 trillion won in 2020 to 168 trillion won by 2030. As housing, health care, caregiving, leisure and digital technology converge, new services and business models are emerging across the lines that once separated these industries. Aging is creating economic demand that goes beyond a market for one age group and links multiple industries together.
Seoul has the conditions to test and commercialize these changes in a real city. The Seoul Metropolitan Government operates a smart wellness-check service using artificial intelligence and the Internet of Things, analyzing electricity, telecommunications and other everyday data to detect irregular signals from households at risk of isolation. The technology began as a welfare service, but it also shows the potential of urban services that combine caregiving with AI and data.
Responding to a super-aged society is not a task for welfare policy alone. When senior housing, medical care, caregiving and leisure are seen as a single industrial ecosystem, new companies, technologies and investment can be connected to one another. Seoul, with its dense concentration of medical and research institutions, information and communications technology companies and varied living infrastructure, is especially well suited to developing new senior-friendly services and validating them in the actual lives of residents.
Aging is both a challenge handed to Seoul and an opportunity for growth. What matters is to see the growing population not only as a cost, but to find new demand in changing ways of life. If technology and services that improve residents' lives lead to corporate innovation, and that innovation connects to industry and investment, the era of 11 million seniors can become the moment that opens Seoul's next growth frontier.
