CatholicPrimaryYears K-6· Major Cities

St Thomas' Catholic Primary School

Willoughby, NSW 2068 · Catholic Schools NSW

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ICSEA

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%

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.