Gyeonggi Suwon International School
Key Stats
Annual Fees: US$19K - US$30K
Curriculum: IB · Christian
Age Range: 3-18
Students: ~600
Location: Other Seoul, Seoul
Updated April 2026
In Brief
GSIS is the clearest IB choice for families based in or relocating to Suwon or the southern Gyeonggi corridor. For Seoul-based families, the 30-40 km drive to Suwon is a real daily commitment; model the commute from your home address before enquiring.
Gyeonggi Suwon International School opened in 1998 and operates on a large purpose-built campus in the YeongTong district of Suwon-si. With around 600 students from age 3 through Grade 12, it runs a full IB Continuum - PYP, MYP, and Diploma - alongside a Christian faith foundation that is woven into school life rather than confined to a single class. The campus facilities are unusually comprehensive for a school of this size: two gymnasiums, a swimming pool, an auditorium, tennis courts, and a turf field. A boarding programme is available, which is rare among international schools in the greater Seoul area.
Academically, the IB Diploma programme reports an average course score of 5.2, which sits above the global IB mean. The school holds WASC accreditation alongside its IB authorisation. Parent accounts describe a close-knit community with strong pastoral relationships, which tends to be a feature of faith-based schools where shared values reduce the social friction that can surface in larger, more anonymous settings. The 20% sibling discount from the second child is a meaningful financial consideration for families with two or more children enrolled at the same time.
Fees for 2026-27 combine a KRW tuition base with a USD capital component; after conversion at the April 2026 rate they run from KRW 25.6M for Junior Kindergarten to KRW 40.7M for Grades 9-12. The one-time non-refundable entrance fee is KRW 4.5M. Those numbers place GSIS in the mid-range for Seoul IB schools - below Chadwick and SFS, and roughly in line with Dwight. For families already in Suwon, the value proposition is strong. For families driving from Gangnam or further north, factor the commute cost - both in time and transport - into the comparison.
What parents value
- –Full IB Continuum (PYP, MYP, Diploma) on one campus, with one of the few boarding programmes available in the greater Seoul area. Strong facilities for a school of ~600 students.
- –IB DP average course score of 5.2 reported by the school - above the global IB mean. WASC-accredited alongside full IB authorisation.
- –20% sibling tuition discount from the second child is a tangible saving for families with multiple children, compared with schools that offer no sibling reduction.
Points of consideration
- –Suwon campus is 30-40 km from central Seoul. For families not based in the YeongTong or Suwon area, the daily commute is long enough to affect quality of life significantly - check the route from your specific address.
- –The Christian faith dimension is embedded across school life, including chapel and community events. Non-Christian families should visit and ask about the day-to-day experience before enrolling.
- –Boarding is available but limited in scale; ask admissions for current boarding capacity and availability if this is a requirement for your family.
Annual Fees
| Year Group | Age | USDTotal Annual Fee |
|---|---|---|
| Junior Kindergarten (JK) | 3 | 16,998 |
| Pre-Kindergarten (Pre-K) | 4 | 19,123 |
| Kindergarten - Grade 5 | 5 | 21,244 |
| Grades 6-8 (Middle School) | 11 | 23,599 |
| Grades 9-12 (High School) | 14 | 27,065 |
Fees converted from KRW. For the most up to date and accurate figures please double check with the school.
Additional Fees
| Fee | Amount |
|---|---|
| Application Fee (non-refundable) | 199 |
| Registration Fee (non-refundable) | 332 |
| Entrance Fee (non-refundable) | 2,991 |
Academic Results
| IB DP average course score | 5.2 |
Key results: IB DP average course score 5.2.
Extra Curriculars
Contact the school for details on co-curricular activities and facilities. Ask what a normal week looks like outside lessons for your child's age group.
Inspections & Accreditations
Inspection
No published inspection details are currently available.
Accreditations
Accreditation details are not publicly listed.
Memberships
Membership details are not publicly listed.
Student Body
Seoul's international schools serve a diverse mix of diplomatic, corporate, and locally-based families. Contact the school for current enrolment details.
Leadership
School leadership
Contact the school for details.