Marmion, WA
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Marmion is a northern coastal suburb of Perth, within the City of Joondalup, named after Patrick Marmion, a master whaler who ran a whaling station along this shore in 1849. Long before that the Whadjuk people knew the area as Mooro and gathered abalone and shellfish from its offshore reefs. Popular with fishermen in the 1930s, when boatsheds and shacks dotted the coast, Marmion was gazetted as a townsite in 1940 but stayed largely undeveloped until the late 1950s; its first primary school, opened in 1956, was fondly known as the Little School in the Bush. The suburb is bounded on the west by West Coast Drive and the Indian Ocean, and just offshore lies the Marmion Marine Park, a protected reserve sheltering a wealth of marine life.
Among Australia's more advantaged suburbs
Marmion is more socio-economically advantaged than about 96% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1111, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Marmion at a glance
- Population (2021)
- 2,390
- Median age
- 45
- Median weekly household income
- $2,435
- SEIFA score
- 1111
- Coordinates
- -31.8410, 115.7566
Marmion demographics (2021 Census)
The figures below profile Marmion using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is mid-life (45–64) at 29%, 11% of homes are rented, and 22% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 476 | 20% |
| Youth (15–24) | 254 | 11% |
| Young adults (25–44) | 454 | 19% |
| Mid-life (45–64) | 685 | 29% |
| Seniors (65+) | 520 | 22% |
Share of the 2,389 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 405 | 48% |
| Owned with a mortgage | 336 | 40% |
| Rented | 89 | 11% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 696 | 83% |
| Townhouses & semis | 131 | 16% |
| Flats & apartments | 10 | 1% |
Tenure and dwelling shares are of the roughly 837 occupied private dwellings in Marmion.
- Median weekly rent
- $495
- Median monthly mortgage
- $2,600
- Average household size
- 2.7 people
- Median weekly family income
- $2,983
- Median weekly personal income
- $1,014
Community and culture
- Born overseas
- 504 (22%)
- Speaks a language other than English at home
- 126 (5%)
- Aboriginal and/or Torres Strait Islander
- 7 (0%)
Work and education
- Completed Year 12
- 1,236 (68%)
- Labour-force participation
- 65.1%
- Unemployment rate
- 3.6%
- Employed full-time
- 651
- Employed part-time
- 492
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in Marmion
Based on 2014–2023 records, the warmest month in Marmion is February (average daytime high around 29.5°C) and the coolest is August (around 17.7°C). The area receives roughly 614 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 29.4°C | 19.4°C | 24 mm |
| Feb | 29.5°C | 19.6°C | 19 mm |
| Mar | 27.8°C | 18.7°C | 39 mm |
| Apr | 24.1°C | 15.7°C | 39 mm |
| May | 20.7°C | 12.8°C | 73 mm |
| Jun | 18.3°C | 11.4°C | 98 mm |
| Jul | 17.4°C | 11.2°C | 113 mm |
| Aug | 17.7°C | 10.5°C | 97 mm |
| Sep | 19.1°C | 11.5°C | 47 mm |
| Oct | 21.6°C | 13.3°C | 38 mm |
| Nov | 24.8°C | 15.6°C | 19 mm |
| Dec | 27.7°C | 18°C | 8 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Marmion
Where is Marmion?
Marmion is a suburb of Western Australia, Australia.
What is the population of Marmion?
At the 2021 Census, Marmion had a population of about 2,390.
Is Marmion an advantaged area?
Marmion has an ABS SEIFA score of 1111, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 96 out of 100 — more socio-economically advantaged than about 96% of Australian suburbs.
What is the weather like in Marmion?
Marmion has average daytime highs of about 23.2°C and overnight lows of about 14.8°C, with roughly 614 mm of rain across the year (based on 2014–2023 climate normals).
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