Notes / Seoul
Best American Schools in Seoul
Seoul's American-curriculum schools ranked by tier, AP results, fees in KRW and USD, WASC accreditation, plus the foreign-passport rule every family runs into.
The brief
- SIS, KIS Pangyo and YISS are the three American-curriculum schools that produce the AP results and US university placement most American families come to Seoul looking for.
- Admission is shaped by Korean law: foreigners' schools require a non-Korean passport in the family, or three-plus years of documented overseas residence.
- Geography pulls families south of the river. SIS sits in Seongnam, KIS in Pangyo, both an hour from central Seoul. YISS in Yongsan is the in-town American option.
- WASC accreditation is table stakes. Every school worth shortlisting holds it. ACSI sits alongside at the Christian schools.
- Top-year fees run KRW 35M to 46M, roughly USD 25k to 33k. Cheaper than Chadwick or SFS, more expensive than the Korean-system foreign schools.
Seoul's American school market is small, old, and tightly regulated. Seoul Foreign School opened in 1912 and ran a US programme for most of its life, though today its diploma year is IB rather than AP. The schools that still produce a recognisably American transcript with AP exams are Seoul International School, Korea International School Pangyo, and Yongsan International School of Seoul.
The hard constraint is admissions law. Foreigners' schools in Korea are licensed by the Ministry of Education to teach foreign nationals. A child holding only Korean nationality is generally not eligible. The working test is one non-Korean passport in the family, or documented residence outside Korea for three-plus years before applying. KIS Pangyo and SIS apply the rule strictly under a 30 percent cap on Korean-passport enrolment. The Free Economic Zones in Songdo and Jeju run a different regime that lifts the cap, which is why Chadwick International (Songdo) and KIS Jeju Campus pull dual-Korean families who cannot meet the Seoul bar.
Geography sorts the rest. US Forces Korea families and the embassy district end up at YISS in Yongsan. Gangnam families commute to SIS or to KIS Seoul Campus on Apgujeong-ro. Bundang and Pangyo, the tech-corridor suburbs south of the river, support KIS Pangyo on a 25-acre campus, the closest thing Seoul has to an American suburban high school.
The top tier
Seoul International School in Seongnam is the senior name in American Seoul. Founded in 1973, around 800 students, WASC accredited, AP at the top with no IB pathway. The 2025 cohort posted 48 percent of AP exams at a 5 and 33 percent at a 4, an 81 percent rate at 4-or-above that puts SIS in the top band of AP results internationally. The campus sits a real commute from central Seoul, which is one reason it does not pull more Gangnam families. Head: Dr. James Gerhard. Fees KRW 28.8M to 42.5M (USD 21k to 30k).
Korea International School Pangyo is the newer power. Opened in 2000, around 1,200 students, WASC and CIS accredited, a non-profit foundation school on a purpose-built campus in the Pangyo tech corridor. The Class of 2025 SAT mean was 1,450 with the Math section at 745. 95 percent of seniors sat at least one AP. The campus is the most American-feeling on this list: stadium, theater, full athletic programme, US-style high school with a separate elementary across the courtyard. Head: Dr. SunShik Min. Fees KRW 33.7M to 46.2M (USD 24k to 33k), the highest American-school fees in Seoul.
Yongsan International School of Seoul is the in-town American option. Founded in 2006, around 1,000 students, WASC and ACSI accredited, a Christian foreign school in Hannam-dong on the same hill as the embassies and the US base. Average AP score 3.9, SAT mean 1,380. YISS is the school where being inside the Seoul ring matters: the families who do not want to commute their kids out to Bundang or Seongnam end up here. The Christian framing is woven through the school day rather than bolted on. Head: Sean Garrick. Fees KRW 30.2M to 35.3M (USD 22k to 25k).
Strong mid-tier
Korea International School Seoul Campus runs the KIS Pangyo elementary programme inside Gangnam for families who cannot face the Pangyo commute with under-11s. Around 350 students, ages 3 to 11, WASC and CIS accredited. Students transition to KIS Pangyo for middle and high. Fees KRW 33.7M to 37.9M (USD 24k to 27k).
Asia Pacific International School Seoul in Nowon-gu is smaller, around 241 students, K to 12, WASC accredited, with a strong AP science record (Calculus BC averaged 4.36 in 2025, Chemistry 3.83). The school carries both AP and IB DP, an unusual dual offering at this size.
Korea Kent Foreign School in southeast Seoul runs an American curriculum with AP, WASC accredited, founded 1993, around 256 students. Carries British branding from its founding but operates as a US-style K-12. Fees KRW 22.5M to 27.1M (USD 16k to 19k).
Global Christian Foreign School in Yongsan carries Korean MoE overseas-school recognition plus ACSI accreditation. Around 600 students, founded 1996, American curriculum with explicit Christian framing. SAT averages have run 1,360 to 1,590 across recent cohorts. Fees KRW 21.4M to 24.4M (USD 15k to 17k), the most accessible American-curriculum option in the city.
Best for sixth form / AP track
The AP track in Seoul concentrates at three names.
SIS for AP density. AP-only at the senior end with no IB to dilute the cohort. 81 percent of exams at 4-or-above in 2025. Strong placement into US selective universities.
KIS Pangyo for SAT plus AP. SAT mean 1,450 and near-universal AP participation. The combination is unusual; most Asian American schools strong at one are weaker at the other.
YISS for the in-town option. AP averages 3.9, SAT 1,380. Lower than SIS or KIS Pangyo on raw scores, but the campus location and embassy-community feel matter to families who do not want to commute an hour each way.
Seoul Foreign School and Chadwick International both run IB Diploma rather than AP at the top end. Families who want a fully American transcript with AP exams should not assume an "international school" in Seoul means an American school.
Best for early years / primary
KIS Seoul Campus is the dedicated elementary track for families who plan to roll into KIS Pangyo at middle school. Ages 3 to 11, in Gangnam.
YISS elementary runs from age 5 inside the same Yongsan campus as middle and high school, so transitions are short and the community runs across thirteen years.
SIS elementary sits on the Seongnam campus from age 3. Families who choose SIS at this age have usually decided to live in Bundang.
Most families with very young children use an English-language preschool (Apple Tree, Chadwick Pre-K, neighbourhood options) before entering the formal foreigners' school system.
At a glance
| School | Curriculum | Ages | Fees range (KRW) | Passport rule | Notes |
|---|---|---|---|---|---|
| Seoul International School | American, AP | 3 to 18 | 28.8M–42.5M | Foreigner | Seongnam; AP-only; 81% AP 4+ in 2025 |
| Korea International School Pangyo | American, AP | 3 to 18 | 33.7M–46.2M | Foreigner | Pangyo; SAT mean 1,450; CIS + WASC |
| Yongsan International School of Seoul | American, AP | 5 to 18 | 30.2M–35.3M | Foreigner | Yongsan; Christian; AP avg 3.9 |
| Korea International School Seoul Campus | American | 3 to 11 | 33.7M–37.9M | Foreigner | Gangnam; elementary only; feeds Pangyo |
| Asia Pacific International School Seoul | American, AP, IB DP | K to 12 | 23.4M–31.0M | Foreigner | Nowon-gu; small; dual AP + IB |
| Korea Kent Foreign School | American, AP | 4 to 18 | 22.5M–27.1M | Foreigner | Southeast Seoul; small K-12 |
| Korea Foreign School | American, IB PYP, Cambridge | 3 to 18 | 26.0M–27.0M | Foreigner | Seocho; hybrid programme |
| Global Christian Foreign School | American, Christian | 5 to 18 | 21.4M–24.4M | Foreigner | Yongsan; ACSI; cheapest American |
Fees are top-year tuition. The passport column is the standard foreigners'-school rule (non-Korean passport in family, or three-plus years overseas residence). Free Economic Zone schools in Songdo and Jeju run a different regime not shown here.
How to tell a real American school
The label "American school" carries three things in this market.
Curriculum structure. A US K to 12 grade system, standards-based teaching, and exit qualifications US universities read without translation: an American high school diploma backed by AP exams, SAT or ACT, and GPA on a 4.0 scale. SIS, KIS Pangyo, YISS, KIS Seoul, KKFS, GCFS, APIS and Korea Foreign all run versions of this structure.
WASC accreditation. The Western Association of Schools and Colleges is the standard signal that a school's transcripts and grade weighting are calibrated to US norms. Every school in the at-a-glance table holds WASC. Several add CIS (Pangyo, KIS Seoul) or ACSI (YISS, GCFS).
AP rather than IB at the top. SFS and Chadwick International offer IB Diploma at the senior end; the schools above run AP exams alongside the school's own diploma. Both routes get students into US universities, but families looking for a US-style transcript with AP scores want the second list.
There is no DoDEA campus open to civilians in Seoul. US Forces Korea families enrol at YISS, SIS or KIS like everyone else.
The other split is regulatory. Schools inside Seoul run under the Ministry of Education's foreigners' school rules: foreign-passport requirement, 30 percent Korean-passport cap, fees regulated within bands. Chadwick International in Songdo and KIS Jeju Campus run under Free Economic Zone law, which lifts the foreign-passport rule and allows dual-Korean families to enrol. Families looking at "American schools in Seoul" who can flex their commute often consider Chadwick separately.
For how American, British and IB structures differ, see British vs IB vs American curriculum and AP explained.
How to choose between them
The decision collapses to three variables: passport eligibility, commute, and AP results.
Passport eligibility. A dual Korean-American family or a returning Korean family with overseas residence will pass the foreigners' school bar at any of the eight schools above. A single-passport Korean family with no overseas residence will not, and Chadwick International in Songdo or KIS Jeju Campus sit on a different regulatory footing.
Commute. Gangnam, Yongsan or Hannam-dong addresses point to YISS, KIS Seoul Campus (elementary) or KKFS. Bundang or Pangyo addresses point to KIS Pangyo or SIS. Families who choose SIS or KIS Pangyo usually move south rather than commute; a child bussed from central Seoul to Seongnam loses two hours of road time a day.
AP results and university placement. SIS leads on AP rigour, KIS Pangyo on the combined SAT-plus-AP profile, YISS on cohort consistency at lower scores. The smaller schools (APIS, KKFS, GCFS, Korea Foreign) place students into US universities every year but with thinner cohorts and less visible counselling.
For a US-university pathway with a transcript admissions offices read without explanation, the three top-tier names cover almost every family. For smaller class size, Christian framing, or a particular neighbourhood, the answer sits in the mid-tier.
Related reading
- Best international schools in Seoul, the pillar across all curricula.
- AP (Advanced Placement) explained: what AP is, how grading works, how US universities read scores.
- British vs IB vs American curriculum: how the three dominant international curricula compare on structure and university routes.
- What is WASC accreditation?: what WASC inspects and what holding it signals.
FAQs
Can a Korean-passport child attend an American school in Seoul? Not at the foreigners' schools inside Seoul (SIS, KIS Pangyo, KIS Seoul, YISS, KKFS, APIS, Korea Foreign, GCFS) unless the family holds one non-Korean passport or can document three-plus years of overseas residence immediately before applying. The 30 percent Korean-passport cap is enforced. Chadwick International in Songdo and KIS Jeju Campus operate under Free Economic Zone law and admit dual-Korean and Korean-only students.
Which Seoul American school has the strongest AP results? SIS, on the 2025 numbers: 48 percent of AP exams at 5 and 33 percent at 4, an 81 percent rate at 4-or-above. KIS Pangyo's profile is broader at near-universal AP participation with a 1,450 SAT mean.
Is Seoul Foreign School an American school? Historically yes, today no. SFS founded in 1912 ran American programming for most of its life. Today it offers IB Diploma at the senior end. Families specifically looking for an American transcript with AP exams should look at SIS, KIS Pangyo or YISS instead.
What does the foreigners' school rule require? Students must hold at least one non-Korean nationality, or the family must document residence outside Korea for three-plus years immediately before enrolling. Schools collect passports, alien registration cards, and overseas residence records as part of admission. Documents are checked.
Are American schools in Seoul cheaper than the British or IB schools? Mostly yes at the senior end. American-curriculum top-year fees run KRW 35M to 46M (USD 25k to 33k). SFS and Dulwich College Seoul run higher. Chadwick International in Songdo runs higher still. GCFS and KKFS are the cheapest WASC-accredited options in the city.
Sources: school websites for fees, accreditations, heads and 2025 AP/SAT results (siskorea.org, kis.or.kr, kisseoul.or.kr, yisseoul.org, apis.org, kkfs.org, koreaforeign.org, gcfskorea.org); Korean Ministry of Education guidance on foreigners' schools and the 30 percent Korean-passport cap; WASC and ACSI accreditation registers; Free Economic Zone framework for Songdo and Jeju.