In a small rural town in South Korea, the birth of a baby recently made headlines. It was the first in 17 years. Around the same time, a few new students joined the local school, just enough to keep a class running.
For residents, it was a moment of relief. However, it also reflects the country’s growing population crisis.
South Korea isn’t just seeing fewer births. The effects are now visible across everyday life, from quiet villages to economic worries, and even the country’s military.
Villages Are Slowly Emptying Out
The shift is most visible in rural areas.
Younger people continue to move to cities in search of jobs, leaving behind older communities. Schools are shutting down because there aren’t enough children. Homes sit empty. In some places, the elderly outnumber the working-age population.
Yet, despite this visible decline, many regions are still planning for growth.
Experts warn that local governments across South Korea have set what are now being called “bubble” population targets. These targets assume more people will live in these areas than is realistically possible.
Instead of adjusting to shrinking populations, some regions continue to invest in infrastructure, housing, and public services based on these inflated expectations.
Economic Pressure
South Korea’s birth rate is among the lowest in the world, at around 0.7 children per woman. That means fewer people will enter the workforce in the years ahead, while the number of elderly continues to rise.
In 2024 South Korean President Yoon Suk Yeol declared the declining fertility rates a national emergency.
The result is a growing imbalance. A smaller workforce will have to support a larger aging population. Over time, that puts pressure on public spending, healthcare systems, and overall growth.
Many young Koreans say they are putting off having children altogether. High living costs, long working hours, and job insecurity make it a difficult decision.
However, the problem is not just less people but also how the country is preparing to tackle it.
According to an analysis of nationwide study of population projection by Korean Peninsula Population Institute for Future think tank’s analysis, the 119 municipalities, or 96 percent of those studied, had overestimated their future populations in local planning documents, creating a mismatch and raising concerns about misallocation of resources.
At the same time, the gap between the capital and the rest of the country continues to widen. More than half of South Korea’s population now lives in the greater Seoul area, leaving other regions to shrink even faster.
The Geopolitical Impact
The country remains technically at war with North Korea and relies heavily on a large, conscription-based military. The number of active-duty troops has fallen sharply, from about 560,000 in 2019 to around 450,000 in 2025, dropping below levels many experts believe are necessary to sustain current defence commitments.
The reason being fewer young men to recruit. As birth rates fall, so does the number of eligible soldiers, with reports pointing to a shortfall of tens of thousands of troops.
Policymakers in South Korea are beginning to rethink long-standing assumptions, particularly around gender roles in the military.
South Korea has traditionally depended on mandatory male conscription, with women serving voluntarily in smaller numbers. But as the manpower crunch deepens, the idea of increasing female recruitment is gaining traction.
What’s clear is that South Korea’s population decline is no longer a distant concern. It is already reshaping the country in visible ways.
At its core, this is not just about population statistics. It is about what happens when a country continues to plan for a future that might not exist.
