← Back to homeAmerican International School of Zagreb
Zagreb, Croatia · est. 1966 · Private
Illustration · Zagreb
The American International School of Zagreb has been running since 1966 and takes students from Pre-K through grade twelve on a single 30,000-square-metre campus across from Bundek lake in the Središće district; the building was put up for the school and opened in September 2018. Lessons are in English, with Croatian added and, at the family's choice, French or German. In the upper grades the school offers the IB diploma and, alongside it, two diplomas of its own - the AISZ Honors Diploma and the AISZ High School Diploma; the average IB diploma score in 2025 was 5.2 against a world average of 4.9, 87 percent of the candidates earned the diploma, and the best result of the year was 40 points out of 45. For teenagers with complex educational needs there is a separate Bridges programme with a fee of its own. The school is the only one in Zagreb to play in the CEESA sports league, and its clubs include robotics, chess, Mathcounts, Model UN, debate, podcasting and a recording studio. The school publishes no single enrolment figure and no list of the universities its graduates go on to.
Key facts
Tuition
≈ $11 446–24 889 a year
9 853–21 425 EUR
Programmes
IB · DP · American programme
Languages of instruction
English
Languages taught
Croatian, French, German
Registration fee
≈ $581
500 EUR
About the fees The fees for the 2026/27 school year are published by the school stage by stage: 9,853 EUR in Pre-K, 19,120 EUR from kindergarten through grade five, 20,485 EUR in grades six to eight, 21,085 EUR in grades nine and ten and 21,425 EUR in grades eleven and twelve. The Bridges programme is priced separately at 39,500 EUR a year. On top of the fee the school charges a one-off application fee of 500 EUR, an enrolment fee of 500 EUR in Pre-K and 1,500 EUR from kindergarten upwards, and an annual capital levy of 2,700 EUR: it is paid in full for the first three years, reduced by a third in the fourth and fifth, and not charged at all from the sixth. Grade twelve adds an IB diploma fee of about 750 EUR.
Admissions Admission runs all year: applications are considered as they arrive and the family hears back within ten working days, which stretches to four weeks during the holidays. Every applicant from grade one to grade twelve sits reading and mathematics tests, grades nine to twelve add an online interview, and applicants whose first language is not English take a WIDA language assessment where needed. Applications for grade eleven are accepted until 1 September of the year of entry, and for grade twelve only in exceptional circumstances. Priority in admission goes to the children of staff of the United States embassy and of other diplomatic missions and to the children of school staff, then to siblings of current students, families relocating to Croatia and children of alumni, then to students transferring from other schools in the Zagreb area. Documents are submitted in English in certified translation: report cards for the past two years, transcripts for high school, medical certificates and immunisation records, and teacher recommendations.
Stages and year groups Grades PK-12. Pre-K through grade twelve in one school: the lower school runs from Pre-K to grade 5, the middle school covers grades 6-8 and the high school grades 9-12. Pre-K takes children who have turned three or four by 1 September, and kindergarten those who have turned five. The average class size is 16.
Address Ul. Damira Tomljanovića Gavrana 3, 10020 Zagreb
Accreditations and programmes verified against official registries
IB · DP · authorised programmeMSA · accreditationCEESA · part of the associationschool is in an official registryconfirmed by a school document, by membership or by taking part in a networkclaimed by the school, no confirmation, not counted in the scoreGuide to all organisations → What stands behind each entry
IBInternational Baccalaureate
A Swiss non-profit, working since 1968. Its programmes are among the most widely recognised school programmes in the world. Authorisation is granted stage by stage, so a school with the final stage does not necessarily run the younger ones; which stages this school holds is set out in the line below.
What the badge means for this school. The school is allowed to run this programme and to award its certificate. This is a confirmation of the programme, not a judgement on the school as a whole. The entry stands in the organisation's public register - anyone can check it. At this school: DP (ages 16-19). DP is the final stage, ages 16 to 19: six subjects plus a compulsory core of theory of knowledge, an extended essay and CAS. The diploma is accepted by universities all over the world, and in a number of countries it counts for admission on the same footing as the local leaving certificate.
Register to check for yourself, and the full guide →MSAMiddle States Association of Colleges and Schools
One of the oldest American accreditations, working since 1887 in more than a hundred countries and linked to the Office of Overseas Schools of the US State Department. It judges the school as an institution across twelve areas, including finances, governance, premises and student support.
What the badge means for this school. The school has been through this organisation's accreditation. It was judged as a whole: governance, safeguarding, staff, premises, teaching. The entry stands in the organisation's public register - anyone can check it.
Register to check for yourself, and the full guide →CEESACentral and Eastern European Schools Association
About thirty international schools in the region. It runs conferences, teacher development and competitions between schools: robotics, football, volleyball, debating. An accreditation from CIS, NEASC, MSA, WASC or Cognia is a condition of entry here, not an outcome.
What the badge means for this school. The school belongs to the association. CEESA runs no inspection of its own, but a school is not admitted without somebody else's accreditation - so the school holds one, and that is what to look at. The entry is confirmed in the organisation's open directory.
Register to check for yourself, and the full guide →American programme
The American school programme, with the High School Diploma at the end. It usually comes together with AP courses, which the College Board stands behind, and with an American accreditation - MSA, NEASC or Cognia.
What this means for this school. The diploma is written out by the school itself: the American programme has no common leaving exam, and the content of the senior years is set by the school. Outside checking therefore rests on two things here - the accreditation of the school, and the AP exams if the school runs them.
Exams and destinations from the school's official website
Average IB score
5.2 (world average 30.88)
Exam results The 2025 results: an average score of 5.2 against a world average of 4.9, 87 percent of the leavers received the diploma, 35 percent the bilingual diploma, and the best result of the year was 40 points.
Facilities from the school's official website
·Swimming poolnot stated on the website
✓Sports hall
✓Laboratories
✓Theatre or assembly hall
✓Library
✓Catering
✓School transport
·Boardingnot stated on the website
Also on site: Sports ground or field · Art studio · Playground
Campus: 30,000 square metres in the Središće district across from Bundek lake; the building was put up for the school and opened in September 2018, it has an A+ energy rating, zero CO2 emissions and gives electricity back into the Zagreb grid, and there is parking on the grounds
Clubs and activities: Tennis · Basketball · Football · Volleyball · Cross-country · Martial arts · Robotics · Chess · Mathcounts · Eco club · Podcasting · Creative writing · Graphic design · Event management · Content creation · Public speaking and debating · Model United Nations · Theatre · Choir · Music and recording studio · Art
Teaching staff from the school's official website
·Teachers listed by namenot published
·Teacher qualificationsnot stated
✓Number of teachers55
·Students per teacher or class sizenot stated
Safety and wellbeing from the school's official website
·CCTVnot stated on the website
·Security staffnot stated on the website
·Access controlnot stated on the website
✓Nurse or medical room
✓Counsellor
·Child protection policynot stated on the website
·Staff trainingnot stated on the website
·Anti-bullying policynot stated on the website
A licensed general practitioner is on campus throughout the school day, and the school promises immediate professional help to students, staff and visitors at any hour of the school day. Psychological and counselling support is part of the student support services: in the lower school “counseling” is a subject of its own, the Responsive Classroom and CharacterStrong programmes are used, and the high school has a university admissions counsellor. The school publishes no separate document on child protection and staff training; the rules of conduct and the daily routine are collected in the Community Handbook.
Reviews
No reviews yet. The community rating counts towards the score once a school has five verified reviews - until then we do not show a zero, so as not to mislead.
Criteria breakdown criterion weight in brackets
Academics and programmes (16%)84 Community rating (16%)no dataparent reviews are needed: the criterion switches on at the fifth verified one Exams and destinations (12%) scored on disclosed data80 Safety and wellbeing (12%) scored on disclosed data65 Accreditation and verifiability (10%)90 Teaching staff (10%) scored on disclosed data70 Facilities (10%) scored on disclosed data90 Clubs and activities (8%) scored on disclosed data78 "Scored on disclosed data" stands where we count only what the school has written about itself on its own site: exams and destinations, safety and wellbeing, teaching staff, facilities, clubs and activities. A low score here means the school does not write about this, not that the school does not have it: a school with good security and a sparse site will score low. A school can fill in its profile, and the score will be counted again.
The score is counted from 8 of the 9 criteria.Only those with checkable data count: programmes and accreditations from official registers, the fee from a published price list. Where it says "scored on the median", the school has no data and the middle of the list is put in its place, so that a gap gives no advantage. Admissions, teaching staff and reviews come in as their data arrives.
The full methodology → Similar schools in the country