Secret Harbour, WA 6173
City of RockinghamAll suburbs in postcode 6173
Updated
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Sales data as of May 2026
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Rent in Secret Harbour
- Weekly rent (all dwellings)
- $700/wk
- House or unit rent
- Not published
Rental data as of September 2026· WA rental bond data
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What to know about Secret Harbour
Secret Harbour (6173) sits in the Rockingham region of Western Australia.
Secret Harbour has roughly 12,474 residents, with a young-family demographic. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
What it’s like to live here
Secret Harbour scores 12/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 30°C (warm), winter mornings around 10°C (mild). Annual rainfall lands at about 685 mm. Figures are our 1991 to 2020 averages of SILO data for this location (Queensland Government, built from Bureau of Meteorology observations).
Schooling within or near the suburb covers 9 government primary, 4 government secondary, 2 Catholic, 1 independent.
Schools in Secret Harbour
Location
Walkability
- Walk
- 12/100
- Transit
- 0/100
- Bike
- 100/100
Very car dependent. Scores out of 100, calculated from OpenStreetMap data (ODbL).
Walkability data as of May 2026· OpenStreetMap
Demographics
The 2021 Census put Secret Harbour's population at 12,474, with a median age of 34. That sits as a young-family demographic. Households are predominantly owner-occupied (79% own, 19% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (87% family households, 11% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Population
- 12,474
- Median age
- 34
- Family households
- 87%
- Lone person
- 11%
- Owner occupied
- 79%
- Renter occupied
- 19%
Demographics data as of May 2026· ABS 2021 Census
Weather year-round
- Annual rainfall
- 685 mm
- Hottest month, avg max
- 30.1°C
- Coldest month, avg min
- 9.9°C
Rainfall by month
Our 1991 to 2020 averages of SILO data (Queensland Government, built from Bureau of Meteorology observations, CC BY 4.0) for this location.
Climate data as of October 2026· SILO (Queensland Government), from Bureau of Meteorology observations
Questions about Secret Harbour
- What is the Secret Harbour postcode?
- Secret Harbour is in the 6173 postcode, in WA, in the City of Rockingham region.
- Where is Secret Harbour?
- Secret Harbour is a suburb in the City of Rockingham area, WA 6173.
- What is the average rent in Secret Harbour?
- The median weekly rent in Secret Harbour is $700 across all dwellings (WA rental bond data, September 2026). The bond records behind it carry no dwelling type, so there is no separate figure for houses and units.
- What schools are in Secret Harbour?
- There are 20 schools serving Secret Harbour on this page, including Secret Harbour Primary School, Comet Bay Primary School, Comet Bay College.
- How walkable is Secret Harbour?
- Secret Harbour has a Walk Score of 12 out of 100, highly car-dependent. transit score 0, bike score 100.
- What suburbs are near Secret Harbour?
- Secret Harbour is close to Golden Bay, Port Kennedy, Karnup, Singleton, Stake Hill.
- What is the population of Secret Harbour?
- The population of Secret Harbour is approximately 12,474 (2021 Census). The median age is 34.
Selling in Secret Harbour? Get the free selling guide
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More on Secret Harbour and nearby
Secret Harbour
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Sources. House and unit medians from the NSW Valuer General, Land Victoria, the SA Government and the ABS; rents from the state rental bond authorities. Census from the ABS (2021), climate from the Bureau of Meteorology, hazard from Geoscience Australia, schools from ACARA and crime from state police open data. Each figure carries its source and date. How we source data
How we’re paid. The guides and this page are free. When a seller asks, we introduce one local agent, and the agent pays us a flat fee for the introduction, never a share of their commission; it costs the seller nothing. If a figure looks wrong, tell us and we’ll fix it.