Mardella, WA 6125
Shire of Serpentine-JarrahdaleAll suburbs in postcode 6125
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 Mardella
- Weekly rent (house)
- $350/wk
- Weekly rent (unit)
- $380/wk
Rental data as of April 2026
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What to know about Mardella
Mardella (6125) sits in the Serpentine-Jarrahdale region of Western Australia.
Mardella has roughly 446 residents, with an established, older skew. 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
Mardella scores 0/100 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 31°C (warm), winter mornings around 8°C (mild). Annual rainfall lands at about 782 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 3 government primary, 2 independent.
Schools in Mardella
Location
Walkability
- Walk
- 0/100
- Transit
- 0/100
- Bike
- 0/100
Very car dependent. Scores out of 100, calculated from OpenStreetMap data (ODbL).
Walkability data as of May 2026· OpenStreetMap
Demographics
The 2021 Census put Mardella's population at 446, with a median age of 45. That sits as an established, older skew. Households are predominantly owner-occupied (79% own, 13% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (80% family households, 17% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Population
- 446
- Median age
- 45
- Family households
- 80%
- Lone person
- 17%
- Owner occupied
- 79%
- Renter occupied
- 13%
Demographics data as of May 2026· ABS 2021 Census
Weather year-round
- Annual rainfall
- 782 mm
- Hottest month, avg max
- 31.5°C
- Coldest month, avg min
- 8.4°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 Mardella
- What is the Mardella postcode?
- Mardella is in the 6125 postcode, in WA, in the Shire of Serpentine-Jarrahdale region.
- Where is Mardella?
- Mardella is a suburb in the Shire of Serpentine-Jarrahdale area, WA 6125.
- What is the average rent in Mardella?
- The median weekly rent for houses is $350, for units it's $380.
- What schools are in Mardella?
- There are 5 schools serving Mardella on this page, including Eton Farm Primary School, Serpentine Primary School, Mundijong Primary School.
- How walkable is Mardella?
- Mardella has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Mardella?
- Mardella is close to Serpentine, Mundijong, Hopeland, Whitby, Cardup.
- What is the population of Mardella?
- The population of Mardella is approximately 446 (2021 Census). The median age is 45.
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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.