Back to mapACARA 40967
IndependentSpecialYear 07 – Year 12Growing enrolments

NORTH METROPOLITAN · Major Cities

Alta-1 College

Association of Independent Schools of WA

Address

12 Winton Road Joondalup 6027

Joondalup · WA 6027

Joondalup

Phone

No phone listed — check the school website or Google Maps

Website
alta-1.wa.edu.au

Official school website

Decision Index

43

Developing · Methodology

ICSEA

950

About average

Students

845

Large (600–1,199)

Student ratio

9.4:1

students per teacher

Community

—

0 parent reviews

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Decision Index

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

43

Decision Index

Developing

Based on verified ACARA school and community data

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

Full methodology →

School environment

34

Staffing, stability, and resourcing from ACARA School Profile.

Student–teacher ratio

9.4:1

Score 10

More staff per student than 10% of 52 like-schools (ICSEA ±50).

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

Staffing trend (5yr)

+20.5% ratio change

Score 48

Student–teacher ratio has increased over five years.

Source: ACARA School Profile 2008–2025

Enrolment stability (5yr)

+7.1%

Score 74

Enrolments have grown over five years.

Source: ACARA School Profile 2008–2025

Teaching staff share

50.8% teaching FTE

Score 19

Higher share of FTE staff in teaching roles than 19% of WA schools.

Source: ACARA School Profile 2025

Community context

53

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

ICSEA community advantage

950

Score 25

Community socio-educational advantage at the 25th percentile among WA all schools. Context only — not a measure of teaching quality.

Source: ACARA School Profile 2025

ICSEA trend (5yr)

-3.4%

Score 48

Community ICSEA has declined over five years.

Source: ACARA School Profile 2008–2025

Housing & economic resources

IER 1060 (decile 9)

Score 75

Economic resources index higher than 75% 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)

271.2 / 100k

Score 93

Joondalup District — lower offence rate than 93% 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

3.0%

5th pct (WA)

3.0% LBOTE — higher than 5% of WA all schools. Descriptive cohort data, not a quality rating.

Source: ACARA School Profile 2025

Indigenous students

7.0%

40th pct (WA)

7.0% Indigenous enrolment — cohort composition relative to WA schools.

Source: ACARA School Profile 2025

Top SEA quarter

4.0%

15th pct (WA)

4.0% 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%): 46 — 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 -3.4%

950

Student–teacher ratioHigher ratio +20.5%

9.4:1

EnrolmentsUp +7.1%

845

800ICSEA 9501300
◎

Large (600–1,199) — 845 students enrolled in 2025.

ACARA School Profile 2025

◈

Student-teacher ratio of 9.4:1 — more staff per student than 10% of 52 like-schools (similar ICSEA background).

ACARA 2025, peer group analysis

◉

ICSEA declining — from 983 (2020) to 950 (2025), -3.4% over 5 years.

ACARA School Profile 2008–2025

◈

Student-teacher ratio has increased — 9.5:1 (2010) to 9.4:1 (2025), +20.5% over 5 years.

ACARA School Profile 2008–2025

↗

Enrolments have grown — +7% over 5 years (+56 students).

ACARA School Profile 2008–2025

N

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 950 — compare NAPLAN progress against 52 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)

950

Declining -3.4%

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.

20
21
22
23
24
25

5-year change vs 2020 · 2020–2025

ICSEA percentile

25

Declining -34.2%

This school's ICSEA rank among all Australian schools (0–100). Higher = higher relative advantage.

20
21
22
23
24
25

5-year change vs 2020 · 2020–2025

Student–teacher ratio

9.4:1

Higher ratio +20.5%

Students per full-time equivalent teacher. Lower usually means smaller class sizes and more staff attention.

5-year change vs 2020 · 2010–2025

Enrolments

845

Up +7.1%

Total student headcount over time. Shows whether the school is growing or shrinking.

5-year change vs 2020 · 2010–2025

Indigenous students

7.0%

Down -46.2%

Share of students who identify as Aboriginal and/or Torres Strait Islander.

5-year change vs 2020 · 2010–2025

LBOTE students

3.0%

Up +50%

Share of students with a language background other than English. LBOTE = Language Background Other Than English (ACARA).

16
19
20
21
22
23
24
25

5-year change vs 2020 · 2016–2025

Top SEA quarter

4.0%

Down -69.2%

Share of students in the most socio-educationally advantaged quarter at this school (ACARA SEA quartiles).

20
21
22
23
24
25

5-year change vs 2020 · 2020–2025

Source: ACARA School Profile 2008–2025. Trend badges show factual up/down vs ~5 years ago.

Student mix

Indigenous
7.0%
LBOTE
3.0%
Year range
Year 07 – Year 12

SEA quartiles

Share of students per quarter

Bottom
56.0%
Lower mid
27.0%
Upper mid
13.0%
Top
4.0%

Local context

Joondalup area

Suburb guide →

4

schools

1,027

avg ICSEA

11.1:1

avg ratio

2 Independent2 Government

Like-school comparison

ICSEA ±50, same school type (ACARA like-schools approach)

Like-schools in WA

52

ICSEA 900–1000

This school ratio

9.4:1

Better than 10% of peers

Peer average ratio

6.1:1

Avg 98 students

For NAPLAN progress against similar-background students, check My School student progress data. That is the fairest academic comparison ACARA provides.

Administration

Local government area
Joondalup
Governing body
Association of Independent Schools of WA
Education region
NORTH METROPOLITAN
Remoteness
Major Cities
Teaching staff
175 (89.8 FTE)
ICSEA percentile (WA)
25th

Nearby & similar

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Data: ACARA School Profile 2025 · WA Dept of Education SLIP — Current Active Schools S1 2025 · Updated 2025

ACARA SML ID 40967