In this guide
The Seoul IB landscape
The International Baccalaureate has been delivered in Seoul since the early 1980s through Seoul Foreign School and has spread steadily through the city since. By 2026, around eight Seoul-area schools deliver at least one IB programme. The Diploma is offered by around seven schools, the MYP by five and the PYP by four. Chadwick International (Songdo), Dwight School Seoul and Branksome Hall Asia (Jeju, with a Seoul-relevant feeder community) deliver the full continuum from PYP through Diploma. Korea International School, Seoul International School and several smaller schools offer the Diploma in parallel with their American or British pathways.
The Seoul IB cohort is unusually mixed for an Asian capital. Chadwick International, Dwight Seoul and Branksome Hall Asia draw heavily on the diplomatic, corporate expat and returning-Korean communities. The IB streams at Seoul International School and Korea International School draw on the long-established American-expat families plus a growing Korean-international cohort. The Korean government has recently expanded IB authorisation in selected state schools (the IB Korea programme), which sits outside the international tier but is worth noting for families with longer Korea horizons. The IB curriculum hub covers programme structure across PYP, MYP and Diploma if you are new to the framework.
How we rank
This list weights five factors. Academic outcomes (average Diploma score and university destinations) carry the most weight. Cohort depth and subject choice at Higher Level follow. Faculty stability matters next. Parent satisfaction from our verified review database, and physical infrastructure including science and arts facilities, complete the framework. We treat fees as a separate axis because the Seoul IB market spans a wide price range from the premium international tier through to value-tier Jeju residential options.
The 2026 IB schools list
Chadwick International (Songdo)
The largest IB continuum school in the Seoul region and the academic benchmark for the market. Located in the Songdo Global Education City, 60 to 90 minutes west of central Seoul. Diploma averages have sat between 36 and 38 in recent years, with multiple pupils scoring 40 plus annually. Deep Higher Level subject choice across all six groups and a long-established Theory of Knowledge faculty. The natural shortlist anchor for any family committed to IB through to Diploma and willing to base in Songdo or commute.
Dwight School Seoul
The Seoul sister to Dwight Schools in New York, London and Shanghai. Full IB continuum from PYP through Diploma. Diploma averages typically 35 to 37, with a strong record of placement at top US and UK universities. The international family-network strength of the Dwight system (transfers across the Dwight schools globally are eased administratively) is a meaningful asset for globally mobile families. Located in northern Seoul.
Branksome Hall Asia (Jeju)
Not in Seoul itself but the most relevant alternative for Seoul-based families considering residential IB. The Jeju campus of the Toronto-based Branksome Hall delivers the full IB continuum on a residential campus. Diploma averages 36 to 38, with strong UK, US and Korean university placement. Tuition is materially lower than the Seoul premium tier, with residential fees added. Worth considering for families with senior children on extended Korea postings.
Seoul International School (SIS)
One of the long-established Seoul international schools, US-accredited, with an IB Diploma cohort running in parallel to the American high school diploma pathway. Diploma averages 34 to 36. The American-track scale is the main strength here; the IB Diploma stream is credible but a minority pathway within a larger AP-led school. Strong fit for families based in Bundang and Pangyo wanting an IB option inside a larger US-system school.
Korea International School (KIS) Pangyo
The Pangyo campus of Korea International School, with a credible IB Diploma stream alongside the American high school diploma pathway. Diploma averages typically 33 to 36. Strong faculty stability and a well-resourced campus. Particularly well placed for families working in the Pangyo technology cluster. The Jeju campus (KIS Jeju) is a sister school in the Jeju Global Education City.
Compare and shortlist
Use the comparison tool to place up to three Seoul IB schools side by side on fees, cohort size and outcomes. Or run the school finder quiz to surface a personalised shortlist matched to your child's year group, curriculum preference and Seoul housing area. Talk to our team for a free shortlist review.
Seoul Foreign School (IB stream)
The oldest international school in Korea, founded 1912, running multiple senior pathways including British A-Levels, American high school diploma and the IB Diploma. The Diploma cohort is smaller than at the dedicated IB schools but credibly delivered with strong faculty. Particularly suited to families based in north-west Seoul with a clear preference for the Seoul Foreign legacy and community.
Yongsan International School of Seoul (YISS) (Diploma stream)
The Yongsan international school in central Seoul offers an IB Diploma option alongside the American high school diploma and AP pathway. The Diploma cohort is small and the AP track is the dominant senior pathway at YISS, but the IB option is credibly delivered for families committed to the Diploma route. Strong central Seoul location.
Korea International School Jeju (KIS Jeju)
The Jeju sister to KIS Pangyo, on the Jeju Global Education City campus. Diploma averages 33 to 36. Tuition meaningfully lower than the Seoul premium tier. Strong fit for Seoul-based families considering Jeju as an alternative for senior children, or as a feeder for the residential boarding community.
Fees and the all-in cost
Seoul IB schools split into two clear fee bands. The premium Seoul-based tier (Chadwick International, Dwight Seoul, Korea International School Pangyo, Seoul International School, Seoul Foreign School) runs KRW 35 million to KRW 47 million per year at senior level (USD 26,000 to USD 35,000). The Jeju tier (Branksome Hall Asia, KIS Jeju) runs KRW 25 million to KRW 32 million in tuition plus residential fees of KRW 14 million to KRW 22 million for boarding pupils.
Add 10 to 18 per cent for the all-in cost, covering registration, capital fees, transport (the school bus for Songdo and Pangyo families is meaningful at KRW 2 million to KRW 4 million per year), books, lunches, uniform, IB exam fees in Diploma years (KRW 700,000 to KRW 1,500,000) and trips. A KRW 42 million tuition typically becomes KRW 47 million to KRW 49 million all in. The full picture sits in international school fees in Seoul, and the fees explorer models a specific school combination. For value-tier alternatives see cheapest international schools in Seoul.
Admission timing and waitlists
Seoul IB admissions follow a single annual calendar oriented around the August or September school year start. Chadwick International, Dwight Seoul, KIS Pangyo and Seoul International School all run formal application windows opening in September to November of the year before entry, with offers issued through January and February. Late and rolling applications are typically accepted from March to June subject to capacity. Waitlists for popular year groups (Reception, the start of middle school and IB Diploma Year 1) typically run 6 to 12 months at the top tier.
The practical sequence is to apply 12 months ahead for the most competitive year groups at Chadwick International, Dwight Seoul or KIS Pangyo, 6 to 9 months ahead at the broader international schools, and to consider the Jeju residential options as alternative routes for senior children. Most schools assess applicants through school records, an English-language assessment for non-native speakers and a family interview, with some additional subject-specific assessment for Diploma entry. The admissions timing by city piece has the cross-city sequence.
How to choose between them
For most expat families the decision narrows quickly once two filters are applied. Filter one is full continuum versus dual pathway. If you want the IB from Reception onwards, Chadwick International, Dwight Seoul and Branksome Hall Asia are the natural shortlist. If you want a US or British pathway with the option to switch to IB at sixth form, KIS Pangyo, SIS, Seoul Foreign or YISS are the candidates.
Filter two is location, because Seoul geography is spread out and the wrong combination can produce a 90-minute daily commute each way. Central Seoul families (Hannam, Itaewon, central districts) suit Dwight School Seoul, Seoul Foreign School or YISS. Pangyo and Bundang families suit KIS Pangyo or SIS. Songdo (Incheon) families suit Chadwick International. Families willing to consider residential placements look at Branksome Hall Asia and KIS Jeju. The harder calls happen at the margins. A family choosing between Chadwick International and Dwight Seoul faces a real trade-off: the larger, slightly stronger Chadwick cohort versus the Dwight global-network and central Seoul location. The best international schools in Seoul piece covers the broader curriculum decision, and moving to Seoul with kids sets the family relocation context.
Cohort depth and subject choice
The Seoul IB cohort is mid to large at the top tier. Chadwick International runs a Diploma cohort of 70 to 100, which supports two or three Higher Level options at scale in the popular subjects and most rarer Higher Level subjects every year. Branksome Hall Asia runs cohorts of 50 to 75. Dwight Seoul and KIS Pangyo run cohorts of 30 to 55, which is large enough for most Higher Level combinations. YISS Diploma stream and Seoul Foreign Diploma stream run thinner cohorts of 10 to 35, which constrains the rarer subject combinations.
Group 2 languages are deep in Seoul because of the city's central east Asian location and the corporate community. Korean, English, French, Spanish, Mandarin and Japanese are commonly available at both standard and Higher Level. Korean ab initio and Korean B are universal across the IB schools, and Korean A is available at Chadwick, Dwight and the Jeju schools for bilingual pupils. Ask the school for the subject menu actually delivered in the last two years and the firm offer for the year your child would enter Year 12. The SL vs HL explainer covers how subject choice interacts with university application strategy.
University outcomes from Seoul IB schools
The destination map from Seoul IB schools is unusually balanced across the US, Korea, the UK and Canada. The US is the single largest destination from Chadwick International, Dwight Seoul, SIS and KIS, accounting for 35 to 55 per cent of leavers in recent cohorts, with strong placement at the Ivy League, the wider Top 30 US universities and the US liberal arts colleges. The UK accounts for 15 to 25 per cent at the international tier with strong Russell Group placement. Korean universities (SKY: Seoul National, Korea University, Yonsei University) account for 10 to 20 per cent, particularly for returning-Korean and dual-nationality families using the IB Diploma equivalence framework. Canada, Hong Kong, Singapore and continental Europe make up the balance.
The IB Diploma is recognised by all Korean universities through the equivalency framework administered by the Ministry of Education, which converts the Diploma score to a Korean grade equivalent for admission purposes. This conversion is favourable for higher-scoring Diploma students and the IB route has become increasingly common for Korean nationals returning from international schools targeting competitive degrees including medicine, law and engineering at SKY universities. The university counselling offer varies meaningfully between schools. Chadwick International, Dwight Seoul and Branksome Hall Asia each run a multi-counsellor team with established calendars for US, UK, Korean and continental admissions. Smaller schools tend to share counselling with senior leadership. The university counselling article covers how to evaluate the offer.
Related guides
- Best international schools in Seoul
- International school fees in Seoul
- Cheapest international schools in Seoul
Frequently asked questions
How many IB schools are there in Seoul?
Around eight Seoul-area schools deliver at least one IB programme in 2026. The full continuum is offered at Chadwick International (Songdo), Dwight School Seoul and Branksome Hall Asia (Jeju). The Diploma is also offered at KIS Pangyo, SIS, Seoul Foreign School, YISS and KIS Jeju.
Which Seoul IB school has the highest Diploma average?
Chadwick International, Dwight Seoul and Branksome Hall Asia all post Diploma averages in the 36 to 38 range in recent years. Diploma averages vary year to year and are best read across a 3 to 5 year window.
How much do IB schools in Seoul cost?
Premium IB schools in Seoul charge KRW 35 million to KRW 47 million per year at senior level. Branksome Hall Asia on Jeju runs KRW 25 million to KRW 28 million plus residential fees. The IB Diploma exam entry fees are typically charged separately.
Is the IB Diploma recognised by Korean universities?
Yes. The IB Diploma is recognised by all Korean universities through the equivalency framework administered by the Ministry of Education. The Diploma score is converted to a Korean grade equivalent for admission purposes.
Can my child join an IB school at any year?
For PYP and MYP entry, most schools accept admissions at any year group subject to capacity and assessment. The Diploma programme itself is a fixed two-year course (Year 12 and Year 13), so mid-Diploma transfers are limited; the practical entry points are Reception, Year 7 and Year 12.