CatholicPrimaryYears K-6· Major Cities
St Thomas' Catholic Primary School
Willoughby, NSW 2068 · Catholic Schools NSW
Visit school websiteICSEA
1161
97th percentile nationally
Elite (top decile)Total enrolments
277
Primary
Student–teacher ratio
15:1
18.1 FTE teachers
Gender mix
52% / 48%
girls / boys
Language background
26%
non-English at home
Socio-educational advantage
Share of students in each national SEA quarter (bottom = most disadvantaged, top = most advantaged).
Bottom: 0%
Lower-mid: 6%
Upper-mid: 29%
Top: 65%
Other schools in Willoughby
Source: ACARA My School 2025. ICSEA reflects the socio-educational background of a school's students — not academic results or teaching quality. National average = 1000. See data sources.