In this guide
The Sydney IB landscape
The International Baccalaureate has been delivered in Sydney since the 1980s and the city now has one of the deepest IB Diploma communities outside the IB heartland in Geneva and the Hague. The Diploma is delivered at around fifteen schools across the metropolitan area, with International Grammar School, Reddam House, Newington College and several other independent schools offering it as the primary or a parallel pathway alongside the New South Wales Higher School Certificate (HSC). The Primary Years Programme and Middle Years Programme are less common in Sydney than the Diploma because the NSW state curriculum is well-established at primary and lower secondary; full continuum delivery exists at International Grammar School and a small handful of other schools.
An important context point: in NSW, IB Diploma and HSC results are both converted to the Australian Tertiary Admission Rank (ATAR) through a published equivalency, so both pathways feed into Australian university entry on a comparable basis. IB also serves international university applications particularly well, especially in the US, Canada, the UK and continental Europe. The IB curriculum hub covers programme structure across PYP, MYP and Diploma if you are new to the framework. Look for IB authorisation as the baseline credential.
How we rank
This list weights five factors. Academic outcomes (average Diploma score and university destinations) carry the most weight. Cohort depth and Higher Level subject choice follow. Faculty stability matters next. Parent satisfaction from our verified review database, and physical infrastructure including science, arts and sport facilities, complete the framework. We treat fees as a separate axis because the Sydney IB market clusters in the AUD 30,000 to AUD 47,000 range with moderate dispersion across the top tier.
The 2026 IB schools list
International Grammar School (IGS)
The most established full-continuum IB school in Sydney. PYP through Diploma on the Ultimo inner-city campus. Strong bilingual programme across multiple foreign languages and a distinctive international ethos. Diploma averages typically 35 to 37 with a strong tail of high scorers. The natural shortlist anchor for families committed to IB at full continuum and based across the inner west and the eastern suburbs.
Reddam House
The most academically intense independent school in the eastern suburbs, delivering both the IB Diploma and the HSC as parallel pathways. Diploma averages 35 to 38, with strong placement at Sydney University, UNSW, the Group of Eight more broadly and the international universities. Modern Bondi campus, large sport and arts facilities, broad subject choice. Particularly suited to families wanting an academically driven environment.
Newington College
One of the leading independent boys' schools in Sydney, delivering the IB Diploma alongside the HSC. Diploma averages 35 to 37. Strong sport and music traditions, large co-curricular programme and deep Sydney heritage (founded 1863). Two campuses, the senior school at Stanmore and a preparatory school at Lindfield, providing options across the inner west and Upper North Shore.
Wenona
Leading independent girls' school on the lower North Shore. Delivers the IB Diploma alongside the HSC at senior level. Diploma averages 35 to 38, with strong placement at Sydney University, UNSW, the Australian National University and the Russell Group. Strong music, drama and visual arts tradition and a long-established academic culture.
Tara Anglican School for Girls
Independent girls' school in the north-west, delivering the IB Diploma alongside the HSC. Diploma averages typically 33 to 36. Strong pastoral programme and a small but stable Diploma cohort. The natural choice for families in the west and north-west of Sydney looking for an IB Diploma pathway.
Compare Sydney IB schools side by side
Use the compare tool to put up to three Sydney IB schools next to each other on fees, cohort size, Diploma averages and university destinations. The school finder matches your family's preferences across budget, curriculum and suburb. Talk to our team for a personal shortlist review and waitlist intelligence.
Redlands
Co-educational independent school on the lower North Shore, delivering the IB Diploma alongside the HSC and a Middle Years Programme through the senior school. Diploma averages 34 to 37. Strong arts and design programmes and a creative-academic positioning that suits children with arts or design leanings.
St Andrew's Cathedral School
Co-educational Anglican school in the heart of the CBD adjoining St Andrew's Cathedral. Delivers the IB Diploma alongside the HSC at senior level. Diploma averages 34 to 37. Particularly suited to families based in the inner ring or commuting into the CBD, and to families wanting the integration of a religious educational tradition with strong IB outcomes.
Trinity Grammar School
Leading independent boys' school in the inner west, delivering the IB Diploma alongside the HSC. Diploma averages 34 to 37. Strong music and sport traditions, and a large co-educational preparatory school feeding into the main campus.
Queenwood
Independent girls' school on the lower North Shore in Mosman, delivering both the IB Diploma and HSC. Diploma averages 35 to 38. Strong pastoral culture, small Diploma cohort and a high-academic environment. Particularly suited to families in the Mosman and Cremorne catchment.
The Scots College
One of the leading independent boys' schools in Sydney, delivering both the IB Diploma and the HSC. Diploma averages typically 34 to 36. Strong sport, outdoor education and military traditions. Particularly suited to families wanting a substantial boys' school experience alongside an IB option.
Fees and the all-in cost
Sydney IB school fees in 2026 cluster in three bands. The premium tier (Reddam House, Scots, Wenona, Newington, Queenwood, Trinity, Redlands) runs AUD 36,000 to AUD 47,000 a year at the senior school level. The mid tier (St Andrew's Cathedral, IGS, Tara, Pymble IB streams) runs AUD 30,000 to AUD 41,000. International student fees (for temporary visa holders) are higher than domestic fees at many schools and run AUD 38,000 to AUD 52,000. Primary fees sit 20 to 35 per cent below the senior school headline.
Published tuition is rarely the full number. Most Sydney IB schools charge a registration fee of AUD 250 to AUD 500, a one-off enrolment fee of AUD 2,000 to AUD 5,000, a building or facilities levy of AUD 500 to AUD 1,500 per year, school camp and excursion fees of AUD 800 to AUD 2,500, sport and music levies of AUD 500 to AUD 2,000, IB exam entry fees of AUD 1,200 to AUD 2,500 in Years 11 and 12, and uniform set-up of AUD 600 to AUD 1,200. The Sydney fees explainer covers the full structural picture.
Admissions timing and waitlists
The Sydney IB market runs busy waitlists at the most popular providers. Reddam House, Wenona, Newington, Trinity and Scots typically maintain waitlists for Y7 and Y11 entry running 18 to 36 months; many take registrations from birth. IGS, St Andrew's Cathedral and Redlands run somewhat shorter lead times but still recommend application 12 to 24 months ahead. For January entry the practical sequence is: register early, complete the school assessment in Year 5 or 6 (for Y7 entry) or Year 9 or 10 (for Y11 entry), pay the waitlist fee and confirm. International applicants on Subclass 500 student visas have separate application streams and shorter lead times at some schools.
IB Diploma versus HSC
Sydney's parallel pathway market means many families face a real IB Diploma versus HSC choice. The Diploma is internationally portable, broader (six subject groups required), more inquiry-led and traditionally favours children who enjoy breadth and the Theory of Knowledge element. The HSC is the NSW state qualification, more focused (students typically choose 10 or 12 units across fewer subjects), more familiar to Australian universities and traditionally favours children who prefer to focus down into a smaller number of specialist subjects.
The ATAR conversion treats both pathways comparably for Australian university entry. For international applications, the Diploma is more widely recognised in the US, Canada, the UK and continental Europe. For Australian university applications, the HSC carries slight cultural familiarity but is not academically advantaged. The choice is often best made on the child's learning style and the family's likely next move.
How to choose between them
The choice between Sydney IB schools usually comes down to four factors. The first is single-sex versus co-educational. Sydney's independent landscape is unusual in still having many strong single-sex schools (Wenona, Queenwood, Tara for girls; Newington, Scots, Trinity for boys), alongside the co-educational options (IGS, Reddam, Redlands, St Andrew's Cathedral). The second is location, which heavily defines the practical school list given Sydney's geography. Eastern suburbs families typically shortlist Reddam, Scots and Kambala IB; lower North Shore families look at Wenona, Queenwood and Redlands; inner west families consider IGS, Newington and Trinity. The third is the child's likely sixth form pathway and university destination. The fourth is the family's view on the IB versus HSC trade-off itself.
For families newer to the framework, our how to choose an international school piece covers the systematic approach and the Sydney city guide covers suburb and lifestyle context.
University outcomes
Sydney IB schools place leavers strongly across the Group of Eight Australian universities (Sydney, UNSW, ANU, Melbourne, Monash, Queensland, Western Australia, Adelaide), the Russell Group (Oxford, Cambridge, Imperial, LSE, UCL, Edinburgh, Bristol), the Ivy League and US top liberal arts colleges, and the leading European institutions. The largest Diploma cohorts (IGS, Reddam, Newington) place several pupils annually at Oxbridge and Ivy League destinations, alongside the dominant Australian university flows. The mid-cohort schools place predominantly within Australia with regular outliers internationally each year. For more on outcomes see our broader analysis of international school university destinations.
Related guides
Frequently asked questions
How many IB schools are there in Sydney?
Around fifteen Sydney schools deliver at least one IB programme in 2026, with the Diploma offered as the dominant programme. Full continuum is less common because the IB Primary Years Programme is typically delivered alongside or in place of the NSW state curriculum rather than instead of.
Which Sydney IB school has the highest Diploma average?
International Grammar School, Reddam House, Newington College and Wenona all post strong Diploma averages in the 36 to 39 range in recent years, with consistent placement at the Group of Eight, Russell Group and Ivy League. Averages vary year to year and are best read across a 3 to 5 year window.
How much do IB schools in Sydney cost?
Premium IB schools in Sydney charge AUD 35,000 to AUD 47,000 per year at senior level (USD 23,000 to USD 31,000). The IB Diploma exam entry fees are typically charged separately at AUD 1,200 to AUD 2,500 per pupil per year.
Should I choose IB or HSC at a Sydney private school?
Both pathways place well at Australian universities through the unified ATAR system. IB suits children intending to apply internationally and those preferring breadth across all subject groups. HSC suits children planning Australian university entry and preferring focused depth in elected subjects.