A picture of a mobility scooter parked in front of rice fields somewhere in Gunwi, a rural county roughly 200 kilometers southeast of Seoul, frequently comes up in conversations about South Korea’s future. There is nobody in the picture. Only the fields, the scooter, and the quiet. Perhaps inadvertently, it is an almost exact representation of the direction that some regions of South Korea are already taking.
In 2023, South Korea’s overall fertility rate fell to 0.72, the lowest level ever recorded by any nation. Consider this to get a human perspective on that figure: at current rates, about 36 children would be born for every 100 South Koreans. Even fewer would be produced by the following generation. The math becomes nearly impossible to undo in two or three cycles.
Since then, the nation has made some progress. The rate increased to the highest level in four years, 0.75 in 2024 and 0.80 in 2025. In 2024 and 2025, the number of marriages increased by over 14% and 8%, respectively. These are not insignificant for a country that has been witnessing unrelenting decline for almost ten years. However, they are also far from sufficient. The replacement rate, or the level of fertility required to merely keep the population steady, is 2.1. Less than half of that is still the case in South Korea.
The fact that this is taking place in a nation that created one of the most remarkable economic trajectories of the 20th century makes it especially startling. After the Korean War, South Korea’s economy grew from one of the poorest in Asia to the thirteenth largest in the world. An educated, disciplined, and expanding workforce served as the foundation for the “Miracle on the Han River,” as it came to be known. The economic presumptions based on that workforce are beginning to look shaky as it ages and shrinks.
According to Bank of Korea projections, the country may experience a protracted economic contraction by the 2040s due to demographic decline. In a different analysis, the Korea Development Institute predicted that GDP could contract as early as 2041 under a pessimistic scenario, and that potential growth could drop to almost zero during that same window. These are not outlandish forecasts. They originate from state research institutions and the nation’s central bank.
The strain is already evident in the pension system. Early in 2025, South Korea passed its first pension reform in eighteen years, delaying the national pension fund’s anticipated depletion from 2056 to 2071. That sounds comforting until you realize that the pensions for civil servants and members of the armed forces have already run out. People in their twenties and thirties are understandably unhappy about this generational transfer of burden, as younger Koreans will pay higher premiums and receive lower benefits. It just so happens that those same young people are the ones who decide against having children.
Over the past 16 years, the government has spent more than $270 billion on pro-natalist incentives, such as cash bonuses, baby allowances, subsidized childcare, and even a plan to exempt men from mandatory military service if they had three or more children before the age of thirty.
The irony that South Korea has one of the world’s most aggressive fertility-support programs and one of the lowest birth rates in recorded history is difficult to ignore. The incentives are genuine, but they are up against deeper issues, such as housing costs that discourage young couples from starting a family, a workplace culture that views parenthood as incompatible with career survival, and a generation of women who have spent their entire lives being told to compete equally in the workforce only to discover that equality ends at the office door.
Additionally, defense is a factor that is seldom discussed in Western coverage. Since the 1953 armistice was a ceasefire rather than a peace treaty, South Korea and North Korea are still officially at war. There are about 1.2 million active military personnel in the North. The number of active troops in South Korea has already decreased by 20% in just six years, from 690,000 in 2019 to about 450,000 today. A declining draft pool results from a declining population. There isn’t a clear market solution for that security issue.
Even so, it’s important to keep some of the hopelessness at bay. South Korea has a tendency to defy expectations. Almost nobody could have imagined the nation it would become in 1953. In retrospect, economists who predicted overpopulation disasters in the 1970s were glaringly mistaken; as populations increased, the world became richer rather than poorer.
Demographic models have consistently lagged behind human adaptability. South Korea’s technology sector is still genuinely competitive, and the country is already investigating immigration reform to draw in skilled foreign workers. Productivity increases, innovative policy, and cultural changes may mitigate outcomes that appear dire today.
However, that optimism must be balanced against a fact: by 2072, South Korea’s population of 51.8 million is expected to drop to 36.2 million. That is not a modeling presumption. It’s already a demographic echo. The children who would have children in 2040 have either already been born or have not yet been born. Policy can influence the margins. It cannot easily reach back in time.
In Gunwi, the scooter waits in front of those rice fields. There is a question in that picture that South Korea hasn’t fully addressed yet: not whether the crisis is genuine, but whether the nation’s renowned ability to reinvent itself can meet it in time.
