Mardie
WAMardie is a growing suburb in WA with 609 residents.
- SAL code
- 50902
- SA2
- 510031273
- Population
- 609
- LGA
- Karratha
Mardie, WA had 609 residents at the 2021 Census, with the broader statistical area showing a 4.5% growth over the last five years. The predominant age group is 35-44 years, and the median age sits at 39. The median household income is $1,125 per week, and households with a mortgage repay around $0 a month. The largest tenure type is rented at 37.5%. Most workers travel by bus, accounting for 31.7% of the journey-to-work mix. The suburb has 5 parks and reserves mapped within its boundary. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Population
?609
Suburb · Census 2021
5-Year Growth
+4.5%
3yr: +3.7% · 10yr: -4.3%
SA2 · 5yr
Household Income
$1,125/wk
Suburb · Census 2021 median
Median Age
39
Suburb · Census 2021
Socio-Economic Index
?5/10
SA2 · middle-range
Unemployment
?3.4%
SA2 · Q4 2025
Hospitals
No data for this suburb
Childcare services
No data for this suburb
Parks & green space
?5
Parks, reserves
Transport stops
No data for this suburb
Dwelling approvals
?31
Karratha · Feb 2026
Median House Sale Price
state Valuer-General sale price data not yet loaded for WA
Safety & Crime
2025 Q4Reported incidents from WA police. Offence rates may not reflect all crime.
Population over time — Roebourne (SA2)
ABS publishes annual estimates only at SA2; Mardie suburb alone is ~609 (Census 2021).
Source: ABS ERP (latest release · 2025) · Census 2021. Numbers refreshed quarterly.
Growth at a Glance
Population grew from 4,559 to 5,770 over 24 years, averaging 1.0% per year.
Government school catchment
Catchment data is not yet available for WA.
Source when available: WA Department of Education — Public School Local-Intake Areas.
Profile
Census snapshot
Housing
mixed tenure (0.0% own or mortgage), built for families (100% are 4 bed).
Tenure
WA 27%
Number of bedrooms
Bushfire risk
Source: WA DFES Bush Fire Prone Areas
As of Apr 2026
Overlap is the percentage of the suburb's land area inside the mapped bushfire polygons. Always verify the exact property address with the relevant authority before making decisions.
Flood risk
Flood data is not yet available for WA.
Overlap is the percentage of the suburb's land area inside the mapped flood polygons. Always verify the exact property address with the relevant authority before making decisions. Source when available: WA DFES Bush Fire Prone Areas and DWER Floodplain Mapping.
Planning zones
Planning-zone data is not yet available for WA.
Source when available: Landgate / WA Department of Planning, Lands and Heritage.