Back to mapACARA 48937

CatholicCombinedYear 04 – Year 12Growing enrolments

NORTH METROPOLITAN · Major Cities

Trinity College

Catholic Education Western Australia

Address

2 Trinity Avenue East Perth 6004

East Perth · WA 6004

Perth

Get directions →Explore East Perth →

Phone

No phone listed — check the school website or Google Maps

Website

trinity.wa.edu.au

Official school website

Decision Index

Average · Methodology

ICSEA

1,113

Above average

Students

1,347

Very large (1,200+)

Student ratio

11.3:1

students per teacher

Community

—

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Decision Index

Verified ACARA data only — school environment, community context, and peer profile.

Decision Index

Average

mid-range staffing · high-advantage community context

55% school environment · 45% community context · ACARA + ABS + WA Police verified data

Full methodology →

School environment

Staffing, stability, and resourcing from ACARA School Profile.

Student–teacher ratio

11.3:1

Score 47

More staff per student than 47% of 43 like-schools (ICSEA ±50).

Source: ACARA School Profile 2025; peer group ICSEA ±50

Staffing trend (5yr)

+6.6% ratio change

Score 48

Student–teacher ratio has increased over five years.

Source: ACARA School Profile 2008–2025

Enrolment stability (5yr)

+10.7%

Score 74

Enrolments have grown over five years.

Source: ACARA School Profile 2008–2025

Teaching staff share

61.9% teaching FTE

Score 62

Higher share of FTE staff in teaching roles than 62% of WA schools.

Source: ACARA School Profile 2025

Community context

Area socio-educational profile — context for who lives nearby, not teaching quality.

ICSEA community advantage

1113

Score 87

Community socio-educational advantage at the 87th percentile among WA combined schools. Context only — not a measure of teaching quality.

Source: ACARA School Profile 2025

ICSEA trend (5yr)

-0.2%

Score 70

Community ICSEA has been relatively stable.

Source: ACARA School Profile 2008–2025

Housing & economic resources

IER 921 (decile 1)

Score 10

Economic resources index higher than 10% of WA postcode areas (ABS SEIFA IER). Proxy for housing affordability context.

Source: ABS SEIFA 2021 — Postal Area (POA), Index of Economic Resources (IER)

Area safety (police district)

693.1 / 100k

Score 27

Perth District — lower offence rate than 27% of WA police districts (selected offences, FY to date). District-level indicator, not suburb-specific.

Source: WA Police Force — Crime Statistics 2024-25 (Financial Year to Date)

Peer profile

Who your child learns with — descriptive cohort data, not included in the Decision Index.

LBOTE students

18.0%

39th pct (WA)

18.0% LBOTE — higher than 39% of WA combined schools. Descriptive cohort data, not a quality rating.

Source: ACARA School Profile 2025

Indigenous students

4.0%

51th pct (WA)

4.0% Indigenous enrolment — cohort composition relative to WA schools.

Source: ACARA School Profile 2025

Top SEA quarter

46.0%

87th pct (WA)

46.0% of students from the top socio-educational advantage quarter — who your child learns alongside.

Source: ACARA School Profile 2025

Planned external data (not yet integrated)

· Median house price (ABS Census — not yet integrated)

We do not show scores for housing or crime until verified open datasets are joined.

Legacy Swan Score (ICSEA 70% + LBOTE 30%): 79 — still available for filtering.

Data insights

What the data tells you

Key facts from ACARA 2025 and historical trends — use alongside school visits and My School NAPLAN.

ICSEA (SES index)Declining -0.2%

1113

Student–teacher ratioHigher ratio +6.6%

11.3:1

EnrolmentsUp +10.7%

1,347

800ICSEA 11131300

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Very large (1,200+) — 1,347 students enrolled in 2025.

ACARA School Profile 2025

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Student-teacher ratio of 11.3:1 — more staff per student than 46% of 43 like-schools (similar ICSEA background).

ACARA 2025, peer group analysis

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Student-teacher ratio has increased — 12.3:1 (2010) to 11.3:1 (2025), +6.6% over 5 years.

ACARA School Profile 2008–2025

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Enrolments have grown — +11% over 5 years (+130 students).

ACARA School Profile 2008–2025

NAPLAN score history is on My School (ACARA). School-level bulk NAPLAN is not in the free download — we link to the official source.

ACARA My School

◉

ICSEA 1113 — compare NAPLAN progress against 43 like-schools on My School for fair academic context.

ACARA ICSEA methodology

⊕

Located in Major Cities — NORTH METROPOLITAN education region.

ACARA School Location 2025

NAPLAN & attendance: View on My School →

All metric trends (ICSEA, LBOTE, enrolments…)

ICSEA (SES index)

1113

Declining -0.2%

Index of Community Socio-Educational Advantage (500–1300+). Higher means students typically come from more advantaged backgrounds — use for like-school comparisons, not as a quality score.