International Grammar School is a independent combined school in Ultimo, New South Wales, with 1,224 reported enrolments, a student-teacher ratio of 9.7:1, and an ICSEA percentile of 98.
Quick school snapshot
School model
International Grammar School is listed as Independent and Combined, with a reported year range of K-12.
Enrolment size
The school reports 1,224 total enrolments, including 527 girls and 697 boys where available.
ICSEA context
The ICSEA value is 1,170, with percentile 98 in the current dataset.
Gender profile
The gender type is Co-educational, with a reported mix of 43.1% girls and 56.9% boys.
Staff ratio
The student-teacher ratio is 9.7:1, based on 126.5 FTE teaching staff where available.
Local area
The campus is in Ultimo, New South Wales, within Sydney.
Profile signals
The main student and context indicators are shown visually so the profile reads like a school intelligence page, not a spreadsheet.
International Grammar School is listed as a independent combined school in Ultimo, New South Wales. The profile reports 1,224 total enrolments, an ICSEA value of 1,170, and a student-teacher ratio of 9.7:1 where available. The reported year range is K-12, and the campus sits within Sydney local government area.
Enrolment
1,224
reported total enrolments
527 girls
697 boys
International Grammar School reports 1,224 total enrolments, including 527 girls and 697 boys. The reported enrolment mix is 43.1% girls and 56.9% boys.
Socio-educational
98
percentile where available
ICSEA
1,170
International Grammar School sits at the 98 ICSEA percentile in the reported dataset.
SEA quarters
Bottom
2%
Lower-middle
6%
Upper-middle
21%
Top
71%
The socio-educational distribution lists 2% in the bottom quarter, 6% in the lower-middle quarter, 21% in the upper-middle quarter, and 71% in the top quarter.
Staff
Teaching staff
132
FTE teaching
126.5
Non-teaching
62
Student-teacher
9.7:1
The profile reports 132 teaching staff and 62 non-teaching staff, with a student-teacher ratio of 9.7:1.
Location
Location context combines suburb, postcode, administrative areas and a direct maps link where data is available.
Governance
Official school and governing body links are included when the dataset provides them.
Community
Student community indicators are reported as percentages where available.
Nearby
Similar schools are selected from the same suburb first, then from the same local government area where needed.
Ultimo, NSW 2007
Same suburb
Ultimo, NSW 2007
Same suburb
Ultimo, NSW 2007
Same suburb
Alexandria, NSW 2015
Same local area
Sydney, NSW 2000
Same local area
Glebe, NSW 2037
Same local area
FAQ
International Grammar School has 1,224 reported total enrolments. The student profile lists 527 girls and 697 boys where gender enrolment fields are available.
International Grammar School is listed as a Independent school with school type Combined. The reported year range is K-12.
International Grammar School is located in Ultimo, NSW 2007. The local government area is Sydney.
The ICSEA value for International Grammar School is 1,170 and the ICSEA percentile is 98. If either value is missing in the source data, it is shown as Not available rather than zero.
International Grammar School is listed as Co-educational. The reported gender mix is 43.1% girls and 56.9% boys where percentage fields are available.
Data note
This page uses structured 2025 Australian school profile data. Some values may be unavailable where they are not reported in the source dataset. Profile pages are designed to make enrolment, ICSEA, location and school context easier to compare.
