At a glance
| Factor | Seoul | Sydney |
|---|---|---|
| Average international school fees (secondary) | KRW 30m to KRW 55m (USD 22,000 to USD 40,000) | AUD 32,000 to AUD 48,000 |
| Dominant curricula | American, IB, British | Australian HSC, IB, IGCSE |
| Cost of living vs Seoul (Numbeo, May 2026) | Baseline | About 46 percent more expensive |
| Family visa | F-series long-term residence or employer E-7 | Employer-sponsored 482, Skilled visas or 186 PR |
| Expat share of population | About 3 percent of city | About 38 percent of Greater Sydney |
| Typical relocation timeline | 10 to 14 weeks | 12 to 20 weeks |
Schools landscape side by side
Seoul has roughly 22 international schools, but access is restricted. Korean nationals can only attend if a parent has at least three consecutive years overseas, which means most schools are 95 percent foreign-passport. The flagships are Seoul Foreign School (SFS) in Yeonhui-dong, Seoul International School (SIS) in Seongnam, Dwight School Seoul on Jeju (with Seoul presence) and Yongsan International School of Seoul (YISS) and Korea International School (KIS). See our Seoul schools hub for the city pillar.
Sydney does not run schools called international per se but offers a deep private school bench delivering IB or international-style curricula. The flagships for expat families are International Grammar School (IGS) in Ultimo, SCEGGS Darlinghurst, Cranbrook, Redlands, Kincoppal Rose Bay and Sydney Grammar. Many top private schools offer IB Diploma alongside the Australian HSC. See the Sydney schools hub.
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Take the 5 minute school finder quiz, then run the cost calculator for both cities. You get shortlisted schools plus a side by side relocation budget in under ten minutes.
Fees and value for money
Seoul school fees sit USD 22,000 to USD 40,000 per year at the major international schools, with SIS and SFS at the top end (KRW 37 to 40 million for high school). Add a non-refundable Initial Registration Fee of KRW 4 million, capital levies KRW 5 to 12 million in year one, plus uniforms and buses. Most expat packages cover full fees.
Sydney private school fees run AUD 32,000 to AUD 48,000 per year at IB-offering schools like Redlands, Kincoppal, The King's School and Cranbrook. IGS at Ultimo sits AUD 22,000 to AUD 38,000 with mid-tier private fees AUD 18,000 to AUD 28,000. Add an enrolment fee of AUD 1,500 to AUD 4,000 and an annual building or technology levy of AUD 900 to AUD 1,500.
Curriculum availability
Seoul is American-heavy at the international schools (SFS, SIS, YISS, KIS), with IB Diploma at SFS and Dwight and British curriculum at Dulwich College Seoul. Sydney runs Australian HSC at every school plus IB Diploma at around 15 private schools. Sydney also offers strong IGCSE and A Level routes at international-facing schools. See the IB hub and the British curriculum hub for curriculum guidance.
Neighbourhoods families pick
In Seoul expat families cluster in Yongsan, Itaewon, Hannam-dong, Yeonhui-dong (near SFS) and Bundang or Pangyo for SIS and KIS commuters. A three-bedroom apartment in Hannam-dong or Itaewon runs USD 3,500 to USD 6,500 per month. Bundang or Pangyo houses USD 2,500 to USD 5,000. Many corporate packages include housing.
In Sydney families pick the Eastern Suburbs (Bondi, Bellevue Hill, Woollahra, Double Bay), the Lower North Shore (Mosman, Cremorne, Kirribilli) and the Inner West (Balmain, Glebe). A three-bedroom apartment in Mosman or Bondi runs AUD 1,200 to AUD 2,000 per week, houses AUD 1,800 to AUD 4,500 per week. Sydney is one of the most expensive housing markets in the OECD by income-to-price ratio.
Lifestyle and climate
Seoul delivers four sharp seasons with humid summers and cold winters around minus 5 degrees, the world's best urban transit, excellent healthcare and 24-hour street life. Sydney offers Pacific-warm summers, mild winters, outdoor beach culture and weekend access to surf, bushland and the Blue Mountains. Both cities are very safe; Sydney has lower density and stronger outdoor sport culture, Seoul has stronger urban-tech rhythm and convenience.
Verdict: who picks which city
Choose Seoul if your relocation is package-driven, you want immersion in Asia's tech and entertainment capital, and your child can adapt to a small expat school cohort. It suits families who place academic intensity and a compact international community high.
Choose Sydney if outdoor lifestyle, broad school choice and English-speaking integration rank above income optimisation, and you can fund AUD 32,000 to AUD 48,000 per child in tuition or have a school allowance. Run both through the cost calculator to compare net household spend.
Frequently asked questions
Is Seoul or Sydney cheaper for international school families in 2026?
Seoul is meaningfully cheaper. Expatistan and Numbeo both show Sydney roughly 46 percent more expensive overall in 2026, with rent the biggest gap. School fees are comparable at the top end (USD 22,000 to USD 40,000), so the divergence is housing, groceries and transport. Most expat families spend 25 to 40 percent less in Seoul on total household budget.
Can Korean nationals or dual-citizen children attend Seoul international schools?
Only under specific conditions. A child holding Korean citizenship can attend a foreign school in Seoul if a parent has lived overseas for at least three consecutive years immediately before enrolment. Dual citizens generally qualify if they meet that test. Schools enforce this rigorously.
Is the family visa easier in Seoul or Sydney?
Both require employer sponsorship for most expats. Korea's E-7 work visa takes 4 to 8 weeks; the F-series long-term residence routes (F-2 points-based, F-5 permanent) are popular with experienced expats. Australia's subclass 482 employer-sponsored visa takes 8 to 16 weeks, with priority processing for high-skilled occupations. Australia's path to permanent residence (subclass 186, 189) is well-defined; Korea's is slower.
Do Sydney private schools offer IB Diploma?
Yes, at around 15 of them. Redlands, SCEGGS, Kincoppal Rose Bay, The King's School, Cranbrook and IGS all offer IB Diploma alongside or instead of the Australian HSC. Sydney Grammar offers IB only. Fees for the IB programme run AUD 32,000 to AUD 48,000 per year at the premium tier.
Where do most expat families live in each city?
In Seoul the heartlands are Yongsan, Itaewon, Hannam-dong, Yeonhui-dong and Bundang or Pangyo. In Sydney families pick the Eastern Suburbs (Bondi, Bellevue Hill, Woollahra), the Lower North Shore (Mosman, Cremorne) and the Inner West.
