Top 5 International Schools in Singapore (2026)

The brief

The reference IB school is UWCSEA Dover. Founded 1971, IB Diploma 36.4 in 2025, the longest-running full IB continuum in Asia.
The strongest single 2024 result is Tanglin Trust. IB DP 39.1 alongside *33% A\/A at A-Level**, the only school running both senior routes at the top of the market.
The regional AP benchmark is Singapore American School. AP mean 4.38, 98% scoring 3 to 5 in 2025, around 4,100 pupils in Woodlands.
The strongest accreditation stack is Dulwich College. CIS, WASC, COBIS and BSO all at full status, IB Diploma 37.1 in 2025 with a 100% pass rate.
The east-side option without losing the UWCSEA programme is UWCSEA East. Same curriculum and results as Dover; a shorter commute for families in Tampines, Changi and East Coast.

Singapore's top tier is tightly compressed. UWCSEA runs as one school across two campuses, Tanglin Trust is the centenary British school, Singapore American School is the regional AP anchor, and Dulwich College is the IB-with-British-heritage school. Senior-year fees cluster between SGD 26,000 and SGD 56,000; the choice is rarely about price.

The deeper field sits in the pillar Best International Schools in Singapore. The longer ranked list with the next five schools added is Top 10 International Schools in Singapore.

The ranking

1. UWCSEA Dover

Dover Road. Ages 4 to 18. Founded 1971. CIS and WASC accredited. Around 3,000 pupils. 2025 IB Diploma 36.4, pass rate 98.7%.

UWCSEA Dover is the original UWC campus in Singapore and the longest-running IB Diploma school in Asia. It is IB-only across the full age span, inquiry-led primary through MYP-equivalent middle years into the Diploma. A family enrolling at Dover commits to the IB pathway from age four; there is no British or American route at any stage.

The Dover site sits next to Buona Vista MRT, fifteen minutes from Holland Village and Bukit Timah where most families live. It is the more central of the two UWCSEA campuses and the more competitive on admissions. Senior-year fees SGD 29,156 to SGD 37,258.

The school carries the UWC movement's deliberate diversity remit, with scholarship intake from across Southeast Asia and residential boarding from Grade 8. The 2025 cohort posted an IB DP average of 36.4 against a global average of 30.32. Selection on character and engagement is part of admissions, not only academic record. The question is rarely whether the school is strong enough; it is whether there is a place.

2. Tanglin Trust School

Portsdown Road. Ages 3 to 18. Founded 1925. BSO inspected in 2022 and 2025. HMC member. Around 2,900 pupils. 2024 IB Diploma 39.1, A-Level *33% A\/A, 87% A\-B*.

Tanglin is the oldest British school in Southeast Asia and posted the country's strongest single set of recent results. The 2024 IB cohort averaged 39.1 points against a global average of 30.32, with the 2025 cohort moving higher again. A-Levels graded *33% at A\/A and 87% at A\-B*.

The structural difference from every other school in the top tier is the dual sixth form: pupils choose between A-Level and IB Diploma at the end of Year 11. Tanglin is the only Singapore school running both routes at this level of result. Primary follows EYFS and the English National Curriculum, so families wanting full IB-from-three look to UWCSEA, NLCS or Stamford American instead.

HMC membership separates Tanglin from the broader British-international category. The head sits in the same conference as the heads of Eton, Winchester and St Paul's; the only Singapore school where that is true. The Portsdown Road campus sits at the southern edge of the Holland Village school belt. Senior-year fees SGD 25,948 to SGD 41,593. Reception, Year 7 and Year 12 carry the longest waitlists in the city alongside UWCSEA Dover.

3. Singapore American School

Woodlands Drive 41. Ages 2 to 18. Founded 1956. WASC accredited on a six-year term. Around 4,100 pupils.

SAS is the largest American international school in Southeast Asia and the regional reference for Advanced Placement at scale. The 2025 cohort posted AP mean 4.38 against a global average of 3.10, with 85% at 4 to 5 and 98% at 3 to 5. SAT class of 2025 ran a middle-50 of EBRW 640 to 750, Math 660 to 780, total 1310 to 1510.

The Woodlands campus is 36 acres in the far north of the island, near the Causeway. Inside the gates it carries full senior-school athletics, an in-house research division, a Chinese-immersion track from kindergarten, and AP at a scale rare in international schooling globally. The school runs an American high school diploma plus AP in the sixth form. It is not an IB school; families wanting the IB Diploma in an American operating culture look at Stamford American.

Woodlands sits 45 to 60 minutes from central Singapore. School buses cover the main residential clusters, but the SAS community is unusually concentrated around Woodlands itself, which has a distinct suburban character compared to Holland Village or Tanjong Katong.

The school operates a lane system: families with US passports or Green Cards sit in Lane 1 on the lowest fee track, with non-US families in Lanes 2 to 4. Senior-year fees SGD 31,000 to SGD 39,410.

4. Dulwich College Singapore

Bukit Batok West Avenue 6. Ages 2 to 18. Founded 2014. CIS, WASC, COBIS and BSO all fully accredited. Around 2,700 pupils. 2025 IB Diploma 37.1, pass rate 100%, IGCSE *74% A\/A**.

Dulwich is the British-heritage school with the IB Diploma as its default sixth-form route. The senior school runs IB DP with a Cambridge A-Level option, the structural inverse of Tanglin where A-Level is the baseline and IB the alternative. The 2025 IB cohort averaged 37.1 points with a 100% pass rate and 30% scoring 40 or more.

The accreditation stack is the strongest in the city. CIS, WASC, COBIS and BSO all sit at full status alongside HMC International membership for the head. The Bukit Batok campus, opened in 2017, is the largest purpose-built international school site to come online in Singapore in the past decade. The Greenhouse, the senior school building, is the country's first net-zero international school structure.

Primary follows the English National Curriculum with Mandarin immersion across all year groups, IGCSE from Year 10, then IB Diploma or Cambridge A-Levels at sixth form. Mandarin runs as continuous immersion rather than a stand-alone subject, unusual at this end of the British-international market. Bukit Batok is further west than UWCSEA Dover; most Dulwich families live across Holland Village, Bukit Timah and Sixth Avenue. Senior-year fees SGD 20,270 to SGD 56,220.

5. UWCSEA East

Tampines Street 73. Ages 4 to 18. Campus opened 2008 within the school founded in 1971. CIS and WASC accredited. Around 3,000 pupils. 2025 IB Diploma 36.4, pass rate 98.7%.

UWCSEA East is the same school as Dover with a different postcode. Same curriculum, same admissions standards, same teaching framework, same 2025 result of 36.4 with a 98.7% pass rate. The two campuses are run as a single institution, with placement decisions usually following residential address.

East is the purpose-built newer campus, opened in 2008 to serve the growing international population east of the city. It is the natural choice for families based in Tampines, Pasir Ris, Changi, East Coast or Katong, a short drive from the East Coast Parkway.

Admissions move faster at East than at Dover. Waitlists clear sooner at most year groups because the school sits outside the main expat corridor. For families with flexibility on where to live, this is the structural advantage: identical UWCSEA programme, materially better odds of a place. Senior-year fees SGD 31,701 to SGD 39,718.

East ranks below Dover on tenure and reputation gravity, not output. Dover has fifty-plus years of established alumni and the older UWC name; East has seventeen. The two campuses are indistinguishable on results, curriculum and teaching standard.

At a glance

School	Area	Curriculum	Ages	Senior-year fees (SGD)
UWCSEA Dover	Dover	Full IB continuum	4 to 18	29,156–37,258
Tanglin Trust	Portsdown	English NC, IGCSE, IB DP + A-Level	3 to 18	25,948–41,593
Singapore American School	Woodlands	American, AP	2 to 18	31,000–39,410
Dulwich College	Bukit Batok	English NC, IGCSE, IB DP + Cambridge AL	2 to 18	20,270–56,220
UWCSEA East	Tampines	Full IB continuum	4 to 18	31,701–39,718

Fees are 2025-2026 published year-group ranges. SGD 1 equals roughly USD 0.74. SAS senior fees include facility components that vary by lane. Dulwich fee range spans the full school including early years; senior-year tuition sits in the upper portion. Verify current figures with each school.

How this list was built

Five is a tight cut against Singapore's roughly seventy CPE-registered private schools. Four signals shaped the shortlist.

Latest published results. The 2024 global IB DP average was 30.32. The five schools sit between 36.4 and 39.1 on the IB side, with SAS at AP mean 4.38. Operators without current, defensible published results dropped out.

Scale and through-school continuity. Every school can take a child from primary or early years to university applications under one operator. Specialist sixth forms and boutique primaries belong on different lists.

Accreditation depth. Every school is CPE-registered by SkillsFuture Singapore and holds EduTrust certification. Above that floor, the five all carry CIS or WASC; Dulwich and Tanglin add BSO and HMC; Dulwich also adds COBIS at full status.

Reputational pull. Which schools an arriving family hears named first from relocation consultants, mobility teams and other parents. The softest signal of the four, used to break ties rather than lead the ranking.

Schools just below the cut

Two schools sit immediately outside the top five and would carry a top-tier listing in most other Asian capitals.

NLCS Singapore is running at top-tier results within five years of opening, with a 2024 IB Diploma average of 36.5. The Depot Road campus is purpose-built and the UK parent ranks first nationally for IB. The reasons it sits below the line are tenure and scale, alongside recent press scrutiny of staffing and facilities that has yet to wash through.

Stamford American is the full IB continuum school in an American operating culture, the only sizeable Singapore school running PYP, MYP and IB Diploma alongside AP at sixth form. The 2025 cohort averaged 34.4 with a 97% pass rate. The Woodleigh campus is more central than SAS Woodlands. It sits below the line on the result delta against the four schools posting 36-plus.

The deeper field, with bilingual options at CIS and GESS, strong SEN at Dover Court, and national-system schools, sits in the pillar guide.

FAQs

Which is the single best international school in Singapore?

There is no single answer. By 2024 IB Diploma average, Tanglin Trust at 39.1 posted the strongest result. By tenure and IB-continuum depth, UWCSEA Dover is the city's reference school. By AP performance, Singapore American School at mean 4.38 sits with the strongest American schools globally. By accreditation depth, Dulwich carries the fullest stack. The right school fits the family's sixth-form route, location and entry-year availability.

How long are the waitlists?

The longest waitlists are at UWCSEA Dover, Tanglin Trust and Dulwich at Reception, Year 7 and Year 12. Twelve to eighteen months is typical; some families apply two years ahead. SAS and UWCSEA East carry more capacity at most year groups. Applying to three or four schools simultaneously is standard practice across the top tier.

What is the total first-year cost?

Tuition alone runs SGD 26,000 to SGD 56,000 depending on year group and school. Add a one-time enrolment fee of SGD 2,000 to SGD 10,000, annual development levy of SGD 4,000 to SGD 6,000, school bus at SGD 2,600 to SGD 6,800, uniforms and exam entry fees. An all-in first-year figure of SGD 55,000 to SGD 65,000 per child at a premium school is realistic.

Is there a debenture system like Hong Kong?

No. Singapore international schools charge one-time enrolment fees and annual development levies, but no refundable six-figure lump sum. The deposit structure is light by regional standards even though annual fees are high.

IB or AP or A-Level: which route do these schools cover?

UWCSEA Dover and UWCSEA East are IB-only across the full age span. Tanglin offers IB Diploma and A-Level in parallel. SAS runs an American high school diploma with AP, no IB. Dulwich runs IB Diploma as default with a Cambridge A-Level option. The sixth-form route shapes university applications more than the school brand does; pick the route first, then the school.

Are Singapore citizens allowed at these schools?

In general, no, with specific exemptions. Singapore citizens are required to attend government schools for primary education. Exemptions apply where the child is returning from overseas or has a foreign parent. The rule does not affect families on Employment Pass and Dependant's Pass; it matters for dual-national families.

Sources. IB Organisation global statistical bulletin 2024. School websites and most recent published exam results (2024 and 2025 cohorts). British Schools Overseas inspection records held by the UK Department for Education. Council of International Schools, WASC, COBIS and BSO accreditation registers. HMC membership directory. Singapore Committee for Private Education / SkillsFuture Singapore for CPE registration and EduTrust certification.