The Rankings — 2026/27
Next update in 307d 20h 04m 11s
Independent · Unpaid · Editorial
World's Top Schools, Ranked.
Every ranked and candidate school in the directory, one continuous list from #1 down. Use this view when you want the full picture without switching between tiers.
This ranking is locked. The next ranking update will be on September 1, 2027. How the ranking cycle works · Why this ranking exists
Penny's picks
Academic Outcomes
Ranked by academic outcomes.
United States · Florida
Montverde Academy
On a Lake Florence campus in Central Florida, boarders from some 80 countries share dorms with a basketball program that keeps feeding the NBA draft.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
149
Value-added index
—
100.0
Score
United States · Nevada
Davidson Academy of Nevada
America's first tuition-free public school for profoundly gifted students, embedded on a university campus in Reno.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
10
Value-added index
0.9
98.0
Score
Australia · New South Wales
James Ruse Agricultural High School
Where selective-school rigor meets compulsory farm science, on a five-hectare campus in Sydney's north-west.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
90.0
Score
Japan · Tokyo
Tsukuba University Senior High School at Komaba
Japan's only national boys' school pairs a historic rice-paddy tradition with an uncommonly free path into the University of Tokyo.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
90.0
Score
Singapore · Singapore
Anglo-Chinese School (Independent)
Singapore's first IB Diploma school, this Methodist boys' campus on Dover Road has ranked among the world's top three IB scorers for years.
% top grades
76%
6+
Flagship grade
36/45
IB avg
Subjects offered
41
Value-added index
1.2
90.0
Score
Australia · Victoria
The Mac.Robertson Girls' High School
Selective by exam, housed in a 1934 heritage-listed landmark by Albert Park Lake, with a VCE record built over decades.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
90.0
Score
France · Île-de-France
Lycée Louis-le-Grand
A Jesuit foundation from 1563 in the Latin Quarter, its prepa classes top national rankings across nearly every track.
% top grades
69.9%
Flagship grade
53.7%
Subjects offered
18
Value-added index
1.2
90.0
Score
France · Île-de-France
Lycée Henri-IV
Storied Left Bank lycée prizing the French Bac and its feeder classes préparatoires to France's grandes écoles.
% top grades
62%
Flagship grade
47%
Subjects offered
18
Value-added index
1.3
89.0
Score
Japan · Hyōgo Prefecture
Nada High School
Founded by Kobe sake brewers with judo's creator as an advisor, this uniform-free campus channels students straight into Tokyo and Kyoto University.
% top grades
45%
A/A-
Flagship grade
65%
AP 3+
Subjects offered
30
Value-added index
1.1
89.0
Score
Singapore · Singapore
NUS High School of Math and Science
Six years, no O-levels, no A-levels -- just a bespoke diploma built around university-level math and science modules.
% top grades
72%
A*/7
Flagship grade
0%
A-Level A*/A
Subjects offered
42
Value-added index
1.2
89.0
Score
Japan · Tokyo
Kaisei Academy
An 1871 all-boys day school in one of Tokyo's densest wards, a perennial University of Tokyo feeder now adding IB and AP tracks abroad.
% top grades
0%
A/A-
Flagship grade
55%
AP 3+
Subjects offered
22
Value-added index
1.0
88.0
Score
China · Beijing
High School Affiliated to Renmin University of China
Set in the heart of Beijing's education precinct, this Renmin University affiliate has nurtured Olympiad champions since gifted classes began in 1978.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
—
Value-added index
—
88.0
Score
India · Maharashtra
Dhirubhai Ambani International School
In the heart of Bandra-Kurla Complex, three curricula converge to produce some of India's highest IB Diploma averages.
% top grades
82%
6+
Flagship grade
33/45
IB avg
Subjects offered
28
Value-added index
1.2
88.0
Score
Singapore · Singapore
Raffles Institution
VerifiedFounded in 1823 as Singapore's first school, its Raffles Programme now sends more students to Cambridge than any other institution.
% top grades
92%
A*/7
Flagship grade
36%
A-Level A*/A
Subjects offered
45
Value-added index
1.3
87.0
Score
Brazil · Ceará
Colégio Ari de Sá Cavalcante
Named for a self-taught Ceara educator, its Fortaleza campuses rank among Brazil's top ENEM performers nationwide.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
87.0
Score
Australia · New South Wales
Sydney Girls High School
NSW's oldest state girls' school, built in 1916 on the old Moore Park zoo site, still selective-entry and HSC-strong.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
87.0
Score
Australia · Victoria
Melbourne High School
Victoria's only academically selective boys' school, its hilltop South Yarra campus earning the nickname Castle on the Hill.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
87.0
Score
United States · New York
Collegiate School
Tracing its roots to 1628 in New Amsterdam, this Upper West Side all-boys day school claims the title of America's oldest independent school.
% top grades
72%
A/A-
Flagship grade
82%
AP 3+
Subjects offered
32
Value-added index
1.2
87.0
Score
Singapore · Singapore
Hwa Chong Institution
Singapore's storied merged independent school, pairing its Integrated Programme with an IB track at its Bukit Timah campus.
% top grades
84%
6+
Flagship grade
40/45
IB avg
Subjects offered
42
Value-added index
1.3
87.0
Score
United States · Virginia
Thomas Jefferson High School for Science and Technology
A Fairfax County magnet where every senior completes original research across fifteen specialized STEM labs.
% top grades
75%
A/A-
Flagship grade
95%
AP 3+
Subjects offered
45
Value-added index
1.4
87.0
Score
Australia · New South Wales
Sydney Boys High School
Australia's first state high school, and still the only government member of the elite GPS sporting competition, steps from the Moore Park precinct.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
86.0
Score
Australia · New South Wales
North Sydney Boys High School
The selective boys' school on the Lower North Shore that ended James Ruse's 27-year grip on the HSC top spot
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
86.0
Score
China · Beijing
The High School Affiliated to Tsinghua University
New · 2026/27Beside the Old Summer Palace and Tsinghua's gates, this century-old Haidian school channels university rigor into elite gaokao prep.
% top grades
95%
A*/7
Flagship grade
60%
A-Level A*/A
Subjects offered
62
Value-added index
60
86.0
Score
United States · New York
Stuyvesant High School
A single exam and a sub-3-percent acceptance rate feed a Battery Park City engine for math, science and technology talent.
% top grades
0%
A/A-
Flagship grade
95%
AP 3+
Subjects offered
54
Value-added index
1.2
86.0
Score
Japan · Shinjuku-ku
Kaijo Junior and Senior High School
A former naval officers' academy in Shinjuku, now a boys' school whose deliberately non-streamed classrooms feed a steady stream into Tokyo University.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
86.0
Score
Canada · Ontario
University of Toronto Schools
Admission decided purely by competitive exam at Canada's only university-affiliated prep school, embedded in U of T's downtown Bloor Street campus since 1910.
% top grades
47%
A/A-
Flagship grade
37.9%
AP 3+
Subjects offered
53
Value-added index
1.6
86.0
Score
United Kingdom · Greater London
The Henrietta Barnett School
GoodA free, fiercely oversubscribed girls' grammar in Lutyens' Hampstead Garden Suburb, sending dozens each year to Oxbridge.
% top grades
63.1%
A*/7
Flagship grade
47%
A-Level A*/A
Subjects offered
53
Value-added index
1.7
86.0
Score
United Kingdom · Greater London
King's College School, Wimbledon
ISI · 2025Beside Wimbledon Common, a Royal Charter school where sixth-formers choose A-levels or the IB and rank among England's very best in both.
% top grades
82%
A*/7
Flagship grade
84.7%
A-Level A*/A
Subjects offered
31
Value-added index
1.2
86.0
Score
China · Beijing
Beijing No. 4 High School
Founded in 1907 by the old imperial walls, this Xicheng day school blends strong gaokao results with electives from physics to cuisine.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
—
Value-added index
—
86.0
Score
United Kingdom · Hertfordshire
Haberdashers' Girls' School
Single-sex teaching by day, shared sixth-form classes by choice, on a 100-acre Hertfordshire campus built for top 0.5% GCSE results
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
86.0
Score
United Kingdom · Hertfordshire
Queen Elizabeth's School, Barnet
A 1573 royal charter grammar school that still tops England's grammar-school A-level tables -- and is now exporting its model to Dubai.
% top grades
67.7%
A*/7
Flagship grade
47.6%
A-Level A*/A
Subjects offered
58
Value-added index
1.7
86.0
Score
Vietnam · Hanoi
VNU University of Science High School for the Gifted
Born in 1965 as Vietnam's first specialized math class, this 6-percent-acceptance school now leads the country in science olympiad medals.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
85.0
Score
Vietnam · Ho Chi Minh City
Le Hong Phong High School for the Gifted
Born in 1927 as Petrus Ky, this Saigon academy now out-medals every rival school at Vietnam's national science olympiads.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
85.0
Score
United States · New Jersey
High Technology High School
A 284-student engineering magnet in Monmouth County where civil design and digital electronics substitute for standard electives.
% top grades
81%
A/A-
Flagship grade
98%
AP 3+
Subjects offered
75
Value-added index
1.2
85.0
Score
Japan · Minato-ku
Azabu Junior and Senior High School
No uniforms, no rulebook, just self-directed rigor on a Minato hilltop that sends a third of graduates to Tokyo University.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
85.0
Score
United States · Massachusetts
Boston Latin School
Founded in 1635, America's first public school still tests every applicant, predating Harvard by more than a year.
% top grades
72%
A/A-
Flagship grade
80%
AP 3+
Subjects offered
32
Value-added index
1.3
85.0
Score
United Kingdom · Greater London
St Paul's School
ISI · 2025A 1509 founding charter to teach boys 'from all nacions and countres indifferently' still anchors this riverside Barnes campus on the Thames.
% top grades
75%
A*/7
Flagship grade
83%
A-Level A*/A
Subjects offered
33
Value-added index
1.2
85.0
Score
United States · New York
Hunter College High School
A tuition-free CUNY-run gifted school on the Upper East Side, admitting by a single brutal exam and about 7 percent of applicants.
% top grades
0%
A/A-
Flagship grade
95%
AP 3+
Subjects offered
32
Value-added index
1.2
85.0
Score
South Korea · Busan
Korea Science Academy of KAIST
Korea's only national gifted-science school, running an ungraded, research-driven curriculum with direct KAIST credit transfer from its Busan campus.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
85.0
Score
South Korea · Jeju Province
North London Collegiate School Jeju
Founding school of Jeju's Global Education City, blending a 170-year London pedigree with strong IB results and seven boarding houses.
% top grades
68%
6+
Flagship grade
—
IB avg
Subjects offered
45
Value-added index
1.0
85.0
Score
United Kingdom · Greater London
St Paul's Girls' School
ISI · 2024A Hammersmith day school where admission itself is the only scholarship, and GCSE results already top the national table.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
85.0
Score
United States · Arizona
BASIS Chandler
Where compulsory Advanced Placement from ninth grade fuels a No. 2 national STEM ranking and a 2024 Blue Ribbon distinction.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
—
Value-added index
—
85.0
Score
United States · Illinois
Illinois Mathematics and Science Academy
A tuition-free state laboratory in Aurora where a fifth of the school week is reserved for original research, not lectures.
% top grades
66%
A/A-
Flagship grade
95%
AP 3+
Subjects offered
26
Value-added index
1.1
85.0
Score
United States · Texas
Duncanville High School
In this Dallas-suburb powerhouse, a four-decade band dynasty holds dual Sudler honors alongside a Grammy Signature choir.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
73
Value-added index
—
85.0
Score
United States · North Carolina
North Carolina School of Science and Mathematics
America's first public residential STEM high school, a Durham model tuition-free program now replicated by eighteen sister schools worldwide.
% top grades
52.2%
A/A-
Flagship grade
95%
AP 3+
Subjects offered
49
Value-added index
0.9
84.0
Score
United Kingdom · Oxfordshire
Magdalen College School
ISI · 2023Educating Magdalen College's choristers since 1480, this Oxford day school is now opening its ancient choir stalls to girls for the first time.
% top grades
77%
A*/7
Flagship grade
89%
A-Level A*/A
Subjects offered
31
Value-added index
1.2
84.0
Score
Vietnam · District 7
Saigon South International School
Vietnam's only Apple Distinguished School, pairing full IB Diploma depth with AP breadth on a non-profit Phu My Hung campus.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
—
Value-added index
—
84.0
Score
Hong Kong · Hong Kong
Queen's College
Founded in 1862, Hong Kong's first government secondary school still runs the world's oldest Anglo-Chinese school magazine.
% top grades
59%
A*/7
Flagship grade
42.8%
A-Level A*/A
Subjects offered
50
Value-added index
1.7
84.0
Score
Japan · Chiba Prefecture
Shibuya Makuhari School
Founded to help Japanese returnee students readjust, this reclaimed-land Makuhari campus now funnels graduates into Waseda and Keio by the hundreds.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
84.0
Score
Singapore · Singapore
Raffles Girls' School
Singapore's storied all-girls secondary school offering a seamless six-year Integrated Programme from Secondary 1 through to A-Levels.
% top grades
64.9%
A*/7
Flagship grade
50.7%
A-Level A*/A
Subjects offered
58
Value-added index
1.8
84.0
Score
Vietnam · District 2
British International School Ho Chi Minh City
Three Thao Dien campuses carry students from England's National Curriculum through IGCSE into the IB Diploma.
% top grades
—
6+
Flagship grade
—
IB avg
Subjects offered
—
Value-added index
—
84.0
Score
Colombia · Cundinamarca
Colegio Los Nogales
One of Colombia's earliest IB adopters, running its own campus bio-refuge and a grade-11-led house system in the Bogota foothills.
% top grades
—
6+
Flagship grade
—
IB avg
Subjects offered
—
Value-added index
—
84.0
Score
Australia · New South Wales
Sydney Grammar School
A College Street institution since 1857, pairing classical Latin and Greek study with the state's highest-placed independent-school HSC results.
% top grades
78%
A*/7
Flagship grade
0%
A-Level A*/A
Subjects offered
25
Value-added index
1.2
84.0
Score
Ireland · County Dublin
St. Kilian's Deutsche Schule Dublin
A 1950s refugee-aid charity's legacy now runs a dual-track Abitur and Leaving Cert campus shared with a French lycee in Clonskeagh.
% top grades
—
Flagship grade
—
Subjects offered
29
Value-added index
1.0
84.0
Score
South Korea · Gangwon Province
Korean Minjok Leadership Academy
On a Gangwon mountainside, hanbok-uniformed students hold English-only seminars, chasing an IB curriculum built to rival Eton.
% top grades
72%
A/A-
Flagship grade
85%
AP 3+
Subjects offered
28
Value-added index
1.2
84.0
Score
Japan · Nerima-ku
Musashi High School
No uniform, no hairstyle rules, no dress code -- just a century-old Nerima campus where boys pursue funded independent research projects
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
84.0
Score
United States · Washington
Lakeside School
On a wooded 33-acre campus above Lake Washington, a no-AP curriculum sets a rigor bar that exceeds the College Board's own.
% top grades
72%
A/A-
Flagship grade
92%
AP 3+
Subjects offered
23
Value-added index
1.2
84.0
Score
Australia · New South Wales
North Sydney Girls High School
A fully selective North Shore powerhouse where rigorous HSC results run alongside a music program that tours internationally.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
84.0
Score
China · Shanghai
Shanghai High School International Division
Grown from a 19th-century public school in Xuhui, its IB cohort has averaged 41 points for fifteen straight years.
% top grades
68%
A/A-
Flagship grade
44%
AP 3+
Subjects offered
24
Value-added index
1.1
84.0
Score
United Kingdom · Greater London
Wilson's School
OutstandingA 1615 charity foundation turned super-selective grammar, thriving on a former Croydon airfield with a sharp focus on maths and computing.
% top grades
60%
A*/7
Flagship grade
47.2%
A-Level A*/A
Subjects offered
46
Value-added index
1.7
84.0
Score
United States · New Jersey
Bergen County Academies
Seven college-style academies and on-campus stem-cell, nanotech, and optics labs turn Hackensack teens into Regeneron Science Talent Search scholars.
% top grades
64.6%
A/A-
Flagship grade
95%
AP 3+
Subjects offered
46
Value-added index
1.3
84.0
Score
United Kingdom · Berkshire
Reading School
OutstandingFounded within Reading Abbey in 1125, this selective state grammar for boys still sends the bulk of its leavers to Russell Group and Oxbridge places.
% top grades
60.3%
A*/7
Flagship grade
49.2%
A-Level A*/A
Subjects offered
50
Value-added index
1.7
84.0
Score
United Kingdom · Essex
Colchester Royal Grammar School
A state grammar bearing two royal charters, from Henry VIII to Elizabeth I, with its own boarding house and a science-and-languages bent.
% top grades
64.2%
A*/7
Flagship grade
52.4%
A-Level A*/A
Subjects offered
57
Value-added index
1.7
84.0
Score
United Kingdom · Greater London
North London Collegiate School
ISI · 2024Founded in 1850 as Britain's first day school giving girls a boys'-standard education, it still tops national GCSE and A-level tables from its Edgware campus.
% top grades
72%
A*/7
Flagship grade
83%
A-Level A*/A
Subjects offered
32
Value-added index
0
84.0
Score
United States · New York
The Bronx High School of Science
A Bronx public school whose exam-only admissions have produced more Nobel physics laureates than any other U.S. high school.
% top grades
0%
A/A-
Flagship grade
95%
AP 3+
Subjects offered
34
Value-added index
1.7
84.0
Score
Brazil · São Paulo
Colégio Etapa
Born from a vestibular cram course, this Sao Paulo school now claims 8 of Brazil's 15 Math Olympiad golds since 1998.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
84.0
Score
United States · New York
Regis High School
The only tuition-free Jesuit high school in America, drawing scholarship boys from across New York for a merit-based education.
% top grades
0%
A/A-
Flagship grade
95%
AP 3+
Subjects offered
25
Value-added index
1.2
84.0
Score
United States · California
The Nueva School
Since 1967, a Bay Area laboratory for gifted minds, pairing design thinking with the country's first dedicated social-emotional learning curriculum.
% top grades
72%
A/A-
Flagship grade
88%
AP 3+
Subjects offered
33
Value-added index
1.2
83.0
Score
Singapore · Singapore
Nanyang Girls' High School
Founded in 1917, this Bukit Timah SAP school blends bilingual rigor with a six-year IP pathway feeding straight into Hwa Chong Institution.
% top grades
65.6%
A*/7
Flagship grade
53.5%
A-Level A*/A
Subjects offered
56
Value-added index
1.7
83.0
Score
United Kingdom · Greater London
Godolphin and Latymer School
ISI · 2025A Thames-side Hammersmith campus where IB scores rank among the world's top ten and six houses bear the names of trailblazing women
% top grades
82%
6+
Flagship grade
84/45
IB avg
Subjects offered
20
Value-added index
1.2
83.0
Score
United Kingdom · Cambridgeshire
The Perse School
ISI · 2026Founded in 1615 as a free grammar school, Cambridge's oldest secondary keeps classics and coding on equal footing en route to Oxbridge.
% top grades
72%
A*/7
Flagship grade
86%
A-Level A*/A
Subjects offered
36
Value-added index
1.2
83.0
Score
United Kingdom · Greater London
Tiffin School
GoodNo fees, no let-up: a Kingston grammar school where two-stage testing turns 2,000 hopefuls into a class of 180.
% top grades
57.1%
A*/7
Flagship grade
49.6%
A-Level A*/A
Subjects offered
52
Value-added index
1.6
83.0
Score
Brazil · Paraíso
Colégio Bandeirantes
Since 1934 in Vila Mariana, the school that pioneered Brazil's live presidential debates now tops ENEM leaderboards statewide.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
83.0
Score
United Kingdom · Europe
St Olave's Grammar School
Orpington’s 1571 boys’ grammar with co-ed sixth form
% top grades
71.7%
A*/7
Flagship grade
58.2%
A-Level A*/A
Subjects offered
57
Value-added index
1.8
83.0
Score
France · Île-de-France
Lycée Hoche
Scientific and economics prep classes taught inside an 18th-century convent listed as a historic monument steps from the chateau
% top grades
0%
Flagship grade
2.7%
Subjects offered
35
Value-added index
1
83.0
Score
United States · Massachusetts
Commonwealth School
VerifiedIn Back Bay brownstones, a 150-student cohort takes college-level seminars from set theory to Shakespeare
% top grades
72%
A/A-
Flagship grade
92%
AP 3+
Subjects offered
26
Value-added index
1.0
83.0
Score
United States · Pennsylvania
Julia R. Masterman Secondary School
A North Philadelphia public magnet where fifth-graders enter at a 3 percent acceptance rate and the payoff is a top-10 U.S. News ranking.
% top grades
95%
A/A-
Flagship grade
86%
AP 3+
Subjects offered
36
Value-added index
1.2
83.0
Score
United Arab Emirates · Dubai
Dubai College
Born of a 1978 royal decree to build a school here, this secondary-only campus fuels a steady stream of Oxbridge offers.
% top grades
62%
A*/7
Flagship grade
51.3%
A-Level A*/A
Subjects offered
38
Value-added index
1.2
83.0
Score
United Kingdom · Kent
The Judd School
A boys' grammar with a co-educational sixth form, where music and mathematics specialisms sharpen a steady flow of leavers into Oxbridge
% top grades
59.8%
A*/7
Flagship grade
45.3%
A-Level A*/A
Subjects offered
48
Value-added index
1.7
83.0
Score
United Kingdom · Greater London
The Latymer School
A 400-year-old state grammar in Edmonton where over 1,000 applicants compete yearly for just 192 places, with Cambridge college endowments still funding leavers.
% top grades
58.4%
A*/7
Flagship grade
42.2%
A-Level A*/A
Subjects offered
51
Value-added index
1.7
83.0
Score
United States · California
Canyon Crest Academy
A 4x4 block schedule and pre-professional arts conservatories fuel a STEM-and-stage culture in suburban San Diego.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
—
Value-added index
—
83.0
Score
Hong Kong · Hong Kong
La Salle College
Rebuilt after wartime requisition as a hospital, this Kowloon City boys' school still runs on Lasallian discipline and DSE top-scorers.
% top grades
58.8%
A*/7
Flagship grade
42.8%
A-Level A*/A
Subjects offered
50
Value-added index
1.7
83.0
Score
Japan · Tokyo
K. International School Tokyo
Tucked in Koto-ku's Kiyosumi-Shirakawa district, a full IB continuum school whose diploma scores have topped Japan's rankings since 2015.
% top grades
67.8%
6+
Flagship grade
42/45
IB avg
Subjects offered
23
Value-added index
1.4
83.0
Score
United States · New York
Trinity School
Founded in 1709 as a charity school, now the oldest continuously operating school in New York City, still built on a rare full Classics department
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
—
Value-added index
—
83.0
Score
United Kingdom · Greater London
City of London School for Girls
ISI · 2025Wedged between brutalist towers and the old Roman city wall, a rigorously academic day school with the capital as its classroom.
% top grades
74%
A*/7
Flagship grade
89%
A-Level A*/A
Subjects offered
31
Value-added index
1.2
83.0
Score
United States · Massachusetts
The Roxbury Latin School
In West Roxbury, a boys' day school founded in 1645 has run continuously ever since, prizing 6:1 mentorship over scale.
% top grades
72%
A/A-
Flagship grade
82%
AP 3+
Subjects offered
32
Value-added index
1.0
83.0
Score
United States · District of Columbia
Sidwell Friends School
Weekly silent worship and a world-first Platinum-rated campus root Quaker inquiry steps from the Capitol.
% top grades
0%
A/A-
Flagship grade
85%
AP 3+
Subjects offered
45
Value-added index
1.0
83.0
Score
Hong Kong · Hong Kong
St. Paul's Co-educational College
Hong Kong's first co-educational school runs DSE and IB side by side on its Mid-Levels campus, posting the city's top IB averages.
% top grades
74%
6+
Flagship grade
38/45
IB avg
Subjects offered
44
Value-added index
1.2
83.0
Score
United Kingdom · Buckinghamshire
Wycombe Abbey
ISI · 2025A Victorian pioneer's 1896 foundation, this Chiltern hills estate blends mixed-age boarding houses with one-in-five Oxbridge offers.
% top grades
—
A*/7
Flagship grade
75.9%
A-Level A*/A
Subjects offered
17
Value-added index
—
83.0
Score
United States · New York
The Brearley School
Founded in 1884 to match boys' schools in rigor, this Upper East Side day school still leads girls' education in humanities and Ivy placement.
% top grades
36%
A/A-
Flagship grade
92%
AP 3+
Subjects offered
34
Value-added index
1.2
83.0
Score
United Kingdom · Greater London
Westminster School
ISI · 2024Sandwiched between Parliament and the Abbey, its Latin prayers and ancient halls send close to half of leavers on to Oxford or Cambridge.
% top grades
79%
A*/7
Flagship grade
82%
A-Level A*/A
Subjects offered
32
Value-added index
1.2
83.0
Score
Hong Kong · Hong Kong
Diocesan Girls' School
Since 1860, this Kowloon institution has topped Hong Kong's Outstanding Student Awards tally for decades.
% top grades
86%
6+
Flagship grade
40/45
IB avg
Subjects offered
24
Value-added index
1.2
83.0
Score
United States · California
The Harker School
In Silicon Valley's backyard, a student-run research symposium turns science fair projects into published papers.
% top grades
63.2%
A/A-
Flagship grade
99%
AP 3+
Subjects offered
51
Value-added index
1.7
82.0
Score
United Kingdom · Gloucestershire
Cheltenham Ladies' College
ISI · 2025Since 1853, a pioneer of girls' academic education, still topping national IB Diploma tables among UK boarding schools.
% top grades
80%
6+
Flagship grade
84/45
IB avg
Subjects offered
90
Value-added index
1.2
82.0
Score
Japan · Nara Prefecture
Nishi-Yamato Gakuen
A Nara hillside campus where a Super Science High School pipeline and boys' boarding houses feed steady streams into Tokyo and Kyoto University.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
82.0
Score
Ireland · Dublin
St. Columba's College
A seven-day boarding rhythm and a Butterfield-designed chapel anchor this Church of Ireland enclave in the Dublin foothills.
% top grades
—
A*/7
Flagship grade
—
A-Level A*/A
Subjects offered
—
Value-added index
—
82.0
Score
South Korea · Seocho-gu
Dulwich College Seoul
In Seoul's Banpo district, a Dulwich campus pairs British day schooling with IB averages some six points above the global mean.
% top grades
53.1%
6+
Flagship grade
46.1/45
IB avg
Subjects offered
47
Value-added index
1.6
82.0
Score
United States · California
Troy High School
Home to Troy Tech, Orange County's original STEM magnet, pairing a four-year technology curriculum with a required senior-year industry internship.
% top grades
—
A/A-
Flagship grade
—
AP 3+
Subjects offered
—
Value-added index
—
82.0
Score
Thailand · Bangkok
Shrewsbury International School Bangkok
BSO · OutstandingA 1552 English public-school pedigree anchors a Chao Phraya riverside campus reachable by its own school boat.
% top grades
—
6+
Flagship grade
—
IB avg
Subjects offered
—
Value-added index
—
82.0
Score
India · Haryana
The Shri Ram School
Delhi NCR’s sought-after secular day school across four campuses
% top grades
—
6+
Flagship grade
—
IB avg
Subjects offered
—
Value-added index
—
82.0
Score
Methodology
How we rank
Our composite weights eight categories. Each is scored 0–100 by our editorial panel and audited against 30 sub-criteria drawn from school records, university placement audits, alumni surveys, campus visits and parent interviews. Schools cannot pay for placement or preview scores.
Weighting
- Academic Outcomes20%
- University Placement17%
- Prestige & Heritage13%
- Alumni Network13%
- Facilities13%
- Transparency & Communications8%
- Peer & Industry Review10%
- Admissions Selectivity & Demand8%
Score key
Reading the scores
Bands out of 100
Every category, sub-criterion and composite total across this issue uses the same six-band editorial palette. Bands are calibrated against the full 300-school cohort — a "Distinguished" mark is meaningfully harder to earn than a "Strong" one.
- Exceptional90–100
Top of cohort
- Distinguished80–89
Elite tier
- Strong70–79
Consistently high
- Solid60–69
Reliable performer
- Average50–59
Room to grow
- Below par< 50
Underperforming
The same colour bands are used inside each school profile, on category chips, radar charts and the annual score-history line — so a colour glimpsed on the Rankings page always means the same thing everywhere else.
