International Grammar School
Combined school in Ultimo, NSW
About International Grammar School
International Grammar School is a independent combined school located in Ultimo, Sydney's North Shore. The school offers education for students from K-12.
With 1224 students enrolled in 2025 and an ICSEA score of 1170 (98th percentile), the school serves a community with above-average socio-educational advantage. The student-to-teacher ratio of 10:1 supports quality learning outcomes.
Contact & Location
- Location Ultimo, NSW 2007
- Website www.igssyd.nsw.edu.au
- MySchool View Profile
School Details
- Type Independent
- Level Combined (K-12)
- Gender Co-educational
- Students (2025) 1,224 enrolled
- Teaching Staff 132 (126.5 FTE)
- Non-Teaching Staff 62 (55.2 FTE)
- ICSEAIndex of Community Socio-Educational Advantage – measures the socio-educational background of students. Based on parents' occupation, education, and school location. National average is 1000. 1170 (98th percentile)
- Indigenous Students 2%
Student Demographics
Gender
Boys: 697 (57%)
Girls: 527 (43%)
Language Background
LBOTE: 26%Language Background Other Than English – students who speak a language other than English at home.
English only: 74%
ICSEA DistributionIndex of Community Socio-Educational Advantage – shows the distribution of students across socio-educational quarters. Based on parents' occupation, education, and school location. National average is 1000.
Bottom 2%
Lower 6%
Upper 21%
Top 71%