Back to mapACARA 48126

GovernmentSecondaryYear 07 – Year 12Growing enrolments

SOUTH WEST · Inner Regional

Collie Senior High School

Department of Education Western Australia

Address

Wittenoom Street Collie 6225

Collie · WA 6225

Collie

Get directions →Explore Collie →

Phone

Contact number on Schools Online

View contact details →

Website

WA Schools Online

Government school profile & contact

Decision Index

Average · Methodology

ICSEA

920

Below average

Students

537

Medium (200–599)

Student ratio

12:1

students per teacher

Community

—

0 parent reviews

NAPLAN on My School

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Decision Index

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

Decision Index

Average

mid-range staffing

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

12:1

Score 68

More staff per student than 68% of 47 like-schools (ICSEA ±50).

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

Staffing trend (5yr)

-6.2% ratio change

Score 82

Student–teacher ratio has improved (fewer students per teacher).

Source: ACARA School Profile 2008–2025

Enrolment stability (5yr)

+2.5%

Score 80

Enrolments have been relatively stable — consistent demand signal.

Source: ACARA School Profile 2008–2025

Teaching staff share

54.6% teaching FTE

Score 10

Higher share of FTE staff in teaching roles than 10% 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

920

Score 15

Community socio-educational advantage at the 15th percentile among WA secondary schools. Context only — not a measure of teaching quality.

Source: ACARA School Profile 2025

ICSEA trend (5yr)

-1%

Score 70

Community ICSEA has been relatively stable.

Source: ACARA School Profile 2008–2025

Housing & economic resources

IER 962 (decile 3)

Score 17

Economic resources index higher than 17% 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)

407.1 / 100k

Score 73

South West District — lower offence rate than 73% 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

6.0%

7th pct (WA)

6.0% LBOTE — higher than 7% of WA secondary schools. Descriptive cohort data, not a quality rating.

Source: ACARA School Profile 2025

Indigenous students

19.0%

15th pct (WA)

19.0% Indigenous enrolment — cohort composition relative to WA schools.

Source: ACARA School Profile 2025

Top SEA quarter

3.0%

6th pct (WA)

3.0% 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%): 38 — 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 -1%

920

Student–teacher ratioImproved -6.2%

12:1

EnrolmentsUp +2.5%

537

800ICSEA 9201300

◎

Medium (200–599) — 537 students enrolled in 2025.

ACARA School Profile 2025

◈

Student-teacher ratio of 12.0:1 — more staff per student than 68% of 47 like-schools (similar ICSEA background).

ACARA 2025, peer group analysis

◈

Student-teacher ratio has improved — 10.3:1 (2010) to 12.0:1 (2025), -6.2% over 5 years.

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 920 — compare NAPLAN progress against 47 like-schools on My School for fair academic context.

ACARA ICSEA methodology

⊕

Located in Inner Regional — SOUTH WEST education region.

ACARA School Location 2025

NAPLAN & attendance: View on My School →

All metric trends (ICSEA, LBOTE, enrolments…)

ICSEA (SES index)

920

Declining -1%

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.