Secret Harbour, WA 6173 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Secret Harbour is a suburb of Western Australia, postcode 6173, home to 12,474 residents with a balanced age mix. Located in the Rockingham local government area and roughly 52 km from the Perth CBD.
Snapshot
Demographics
- Population
- 12,474
- Median age
- 34 years
- Median household income
- $2,492 /week
- Median personal income
- $967 /week
- Median family income
- $2,685 /week
- Average household size
- 3.1
- Persons per bedroom
- 0.8
- Local government area
- Rockingham
- Statistical region (SA4)
- Perth - South West
- Remoteness classification
- Major Cities of Australia
- Federal electorate
- Brand
Property & cost of living
- Median rent
- $380 /week
- Median monthly mortgage
- $2,000
- Rent share of household income
- 15%
Schools
- Secret Harbour Primary School
- Comet Bay College
- Comet Bay Primary School
- Golden Bay Primary School
- Singleton Primary School
Transport
- Within 800 m walk: 10 bus stops
- Within 1.6 km: 57 bus stops
- Warnbro Sound Av After Secret Harbour Bvd
- Warnbro Sound Av Before Anstey Rd
- Warnbro Sound Av Before Oneida Rd
- Warnbro Sound Av After Oneida Rd
- Warnbro Sound Av Before Peaceful Bay Prom
Lifestyle & amenities
- 3 cafés
- 10 restaurants
- 2 pubs and bars
- 49 parks and reserves
- 6 gyms and fitness centres
- 6 supermarkets
- 24 playgrounds
Climate
- Warmest month: Feb (31.7°C avg max)
- Coolest month: Jul (18.5°C avg max)
- Annual rainfall: 719 mm
- Reference station: Perth Metro, 55.2 km away
NBN & connectivity
Fibre to the Premises serves 53.3% of the 4,440 resolvable premises in Secret Harbour. Most premises here have a fibre cable running directly into the property — the fastest and most reliable NBN option, with plans available up to NBN 1000.
- Fibre to the Premises: 53.3%
- Fibre to the Curb: 2.0%
- Fibre to the Building: 0.3%
- Fibre to the Node: 44.4%
Safety
- Recorded offences: 30,272 across the Mandurah District in the year to Mar 2026 (up 6% on the prior year).
- Most common categories: 9,533 theft, 7,551 violent offences, 3,184 drug offences.
Frequently asked questions
What is the population of Secret Harbour?
Secret Harbour (WA 6173) had 12,474 residents at the most recent ABS Census. The median age is 34. It sits within the Rockingham local government area.
What is the median rent in Secret Harbour?
The median advertised rent in Secret Harbour is $380/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Secret Harbour?
Yes — 5 schools are listed within or near Secret Harbour covering government sectors. Nearest include: Secret Harbour Primary School (0.4 km), Comet Bay College (1 km), Comet Bay Primary School (1.2 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Secret Harbour?
Secret Harbour is predominantly served by Fibre to the Premises (53.3% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Secret Harbour?
Across the surrounding area, 30,272 offences were recorded in the 12 months to Mar 2026. The most common offence categories were theft (9,533), violent (7,551), drug offences (3,184). Crime statistics are recorded by area (postcode or LGA), not by individual suburb. Data sourced from each state's crime statistics agency.
What is the climate like in Secret Harbour?
In Secret Harbour, mean daily temperatures range from 13°C to 24.9°C and annual rainfall is 719 mm measured at the Perth Metro weather station (55.2 km away). Long-term averages from the Bureau of Meteorology.
What public transport options are in Secret Harbour?
57 public transport stops are mapped within 1.6 km of the Secret Harbour centroid. Within 800 m, you'll find 10 bus stops. Stop data is sourced from state government GTFS feeds.
Sources & methodology
Demographics from ABS Census. Property data from SQM Research. Climate from Bureau of Meteorology. Schools from ACARA. NBN from NBN Co. Amenities from OpenStreetMap. See full methodology.
Additional sources for this profile: