The Other School System Running Parallel to Every Korean Classroom
It's 9:45 PM on a Tuesday in Seoul's Gangnam district. The subway is crowded with teenagers in school uniforms, backpacks strapped tight, earphones in. They're not heading home from a party. They're heading home from their last hagwon class of the night — the third one today. In the streets of Daechi-dong, just a few blocks away, shuttle buses are still lined up outside academy buildings that glow like convenience stores that never close. This scene repeats itself across Seoul every single weeknight, and has for decades. To most Koreans, it's simply Tuesday. To anyone seeing it for the first time, it's one of the most striking social phenomena in the developed world.
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| After 10 PM in Daechi-dong, the city doesn't sleep — the shuttle buses are just pulling up. |
What Is a Hagwon, and Why Does Almost Every Korean Student Attend One
A hagwon is a private, for-profit educational academy that operates outside of regular school hours. The word translates loosely as "institute for study," but that clinical definition barely captures what these places actually are: a parallel educational universe, operating every afternoon, evening, and weekend, serving millions of students who have already completed a full day of public school. According to government statistics, roughly 75 to 80 percent of Korean students attend at least one hagwon. More recent data puts the figure even higher for younger children — an estimated 83 percent of five-year-olds in South Korea are already enrolled in some form of academy. That includes children under two years old.
The subjects on offer are nearly unlimited. The most common are mathematics, English, and science, followed by Korean language arts and exam preparation specifically designed for the Suneung, Korea's national college entrance exam. But hagwons also exist for coding, essay writing, speech and debate, classical music, taekwondo, art, and career coaching. The industry has diversified considerably over the past decade, responding to a parental market that has grown more sophisticated in what it wants from supplementary education. Still, at the core of the entire ecosystem sits one unmoving goal: competitive advantage on the path to a top university.
Daechi-dong: The Address That Defines an Industry
If the hagwon universe has a capital city, it is Daechi-dong, a neighborhood in Seoul's affluent Gangnam district. Within roughly a 1.5-mile radius centered on Hanti subway station, more hagwon buildings are clustered together than perhaps anywhere else on earth. The area has been the nucleus of Korea's private education industry since the 1970s and 1980s, when the Park Chung-hee administration relocated a cluster of Seoul's most prestigious high schools to the Gangnam region, drawing families — and then academies — in their wake. Real estate prices followed education demand upward, and today the correlation between proximity to elite hagwons and property values is direct and quantifiable. As of recent data, apartments in Daechi-dong command an average price of approximately 94.25 million won per 3.3 square meters — surpassing even the broader Gangnam average by over 6 million won per unit of measurement, translating to roughly 156 million won in additional cost for a typical apartment.
Parents who cannot afford to live in Daechi-dong commute their children there. Some families relocate entirely for access to the best academies, a practice common enough that Koreans have a specific term for mothers who manage these educational logistics: "education migration." In this neighborhood, the information a parent holds about which instructor is getting the best results, which hagwon is producing the most SKY university admissions, which course is worth the premium — that information is its own form of social currency, passed between parents with the intensity of financial intelligence.
The Economics of a $20 Billion Industry
South Korea's private education market generates over 27 trillion won — roughly 20 billion US dollars — in annual spending. This figure comes from a country with one of the lowest and most rapidly declining birth rates in the world. The student-age population dropped by 14.5 percent between 2020 and 2023, and the Ministry of Education projects a further fall from 5 million students today to under 3.8 million by 2031. Yet revenue in the hagwon industry continues to rise. The logic is straightforward: as the student pool shrinks, spending per child increases. Parents are not spending less on education — they are concentrating more of their household budget on fewer children.
The numbers at the premium end of the market are striking. Private education spending per participating student reached a record 604,000 won per month in 2025. For high school students, that average climbs to 793,000 won monthly. In Daechi-dong specifically, families with children in the third year of high school routinely spend 4 to 5 million won per month on private education — a figure recently confirmed publicly by a Seoul National University dental school graduate who grew up studying in the district. Elite boarding hagwons for Suneung retakers, where students live on-site and study under controlled conditions, now charge up to 3.5 million won per month for the structured environment alone.
At the corporate level, the industry's scale becomes clearer. MegaStudyEdu, the largest publicly listed hagwon company, reported 718.9 billion won in revenue in the third quarter of 2024 alone. Sidae Injae Academy, one of Daechi-dong's most prominent institutions, saw its sales grow nearly fivefold in five years, reaching 331.2 billion won by 2023. These are not tutoring centers. They are education corporations operating at the scale of significant consumer businesses.
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| Today's premium hagwons look less like cram schools and more like design studios — engineered entirely for one outcome. |
Star Instructors and the Rock Star Economy of Cram School Teaching
One of the strangest and most distinctly Korean aspects of the hagwon world is its celebrity instructor culture. The top-tier teachers in the four core Suneung subjects — Korean language, English, mathematics, and science — have become genuine public figures. They appear on television programs, release books, and in some cases record music. They maintain dedicated fan bases of students and parents who follow their reputations across platforms. The most successful instructors at elite Daechi-dong academies are reported to earn up to the equivalent of 10 million US dollars per year — compensation in the range of professional athletes or film stars.
Parents queue for registration spots in these instructors' classes with the same intensity others reserve for concert tickets. There are documented accounts of parents lining up at 1 AM simply to receive a ticket that entitles them to join the actual registration line when it opens. The instructor's track record — measured in SKY university admissions among students who studied under them — functions as the primary credential. A single year of studying under the right instructor, at the right hagwon, in the right district, is widely understood to translate into a meaningfully higher Suneung score. Whether or not that belief holds up uniformly under data analysis is a separate question. The belief itself drives the market.
A Typical Tuesday: What Korean Students Actually Do After 4 PM
The daily schedule of a Korean high school student in a major city reads as exhausting from almost any outside perspective. School typically begins around 8 AM and runs until 4 or 4:30 PM. After a quick meal — often from a convenience store between transit connections — most students head to their first hagwon, covering one subject from roughly 5 to 7 PM. A second hagwon follows, running until 9 or 10 PM, the government-mandated curfew for academy operations. Many students then continue to a dokseosil, a private study room rented by the hour, where they work independently until midnight or beyond. Korean teens average approximately 49 hours of study per week, according to data from the National Youth Policy Institute — roughly 15 hours more than the OECD average. Physical exercise accounts for about 13 minutes of their daily time, compared to 37 minutes for American teenagers.
The government introduced the 10 PM hagwon curfew in 2009 precisely because students were regularly in academies past midnight. Enforcement patrols were dispatched in Gangnam. Some hagwons simply moved their late-night sessions online. The structural demand — parents who want more instruction time, students competing for the same university spots — proved more powerful than the regulatory intent.
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| For a generation raised inside the hagwon system, the schedule is demanding — but so is the ambition. |
How the Hagwon System Is Changing in 2025 and Beyond
The hagwon industry is not static. Several shifts are reshaping it in ways that reflect both changing family expectations and the pressures of a declining student population. First, premium intensity has replaced volume. Rather than enrolling in three average-quality academies, more families are consolidating spending into one or two elite programs, willing to pay significantly more for perceived quality. Boarding hagwons, where students live full-time in a structured study environment for weeks or months before the Suneung, have grown into a substantial market segment, particularly among students retaking the exam in pursuit of a higher score.
Second, the subject range has genuinely broadened. A generation of Korean parents who came of age in a more globally connected economy now want their children to develop coding skills, creative writing ability, and English fluency that goes beyond test performance. New categories of hagwon focused on these skills are growing in parallel to the exam-prep core, and several drama series — including the 2024 production "Midnight Romance in Hagwon" and the earlier "Crash Course in Romance" — have reflected this tension between old educational values and new ones back to a viewing public that recognizes both with equal familiarity.
Third, there is a growing public conversation about what the system costs at the level of individual wellbeing — not just financially, but in sleep, physical health, and the quality of childhood itself. That conversation has not yet restructured the industry. It has, however, produced a generation of young Korean adults who are more openly critical of the pressures they experienced than their parents' generation was willing to be, and that shift in cultural discourse tends to be a leading indicator of slower structural change to come.
The hagwon universe is enormous, deeply embedded, and financially powerful enough to survive most of the policy reforms aimed at containing it. It exists because the stakes of Korean university admissions are genuinely high, because the belief in education as the primary engine of social mobility is genuinely deep, and because in a society where a school name can still shape a career trajectory for decades, spending heavily to influence that outcome is, for millions of families, simply rational. Whether the next generation of Korean parents makes the same calculation remains the most interesting open question in Korean education today — and the hagwons themselves are watching the answer closely.
References
Seoul Economic Daily — Korea Private Education Spending Per Student Hits Record High (April 2026) / Korea Herald — Korea's Private Education Sector Rakes in Profits Despite Fewer Students (February 2025) / Seoulz — Korea Hagwon Industry 2026: Inside the $20B Cram School Empire (May 2026) / Grokipedia — Daechi-dong: Education, Real Estate, and SKY University Data (2026) / Academic Credentials Evaluation Institute — Top 10 Facts About South Korea's Education System in 2025 (December 2025) / National Youth Policy Institute — Korean Youth Study Hours and OECD Comparison Data / Ministry of Education Korea — 2024 Projection of Elementary, Middle, and High School Student Numbers
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