Lake Illawarra High School
Secondary school in Lake Illawarra, NSW
About Lake Illawarra High School
Lake Illawarra High School is a government secondary school located in Lake Illawarra, Sydney's North Shore. As a NSW public school, it provides quality education to the local community, catering to students from 7-12.
With 542 students enrolled in 2025 and an ICSEA score of 894 (10th 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 Lake Illawarra, NSW 2528
- Website lakeillawa-h.schools.nsw.gov.au
- MySchool View Profile
School Details
- Type Government
- Level Secondary (7-12)
- Gender Co-educational
- Students (2025) 542 enrolled
- Teaching Staff 53 (53.6 FTE)
- Non-Teaching Staff 25 (17.7 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. 894 (10th percentile)
- Indigenous Students 23%
Student Demographics
Gender
Boys: 282 (52%)
Girls: 260 (48%)
Language Background
LBOTE: 10%Language Background Other Than English – students who speak a language other than English at home.
English only: 90%
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 67%
Lower 23%
Upper 8%
Top 2%