ABS 2021 Census · Updated 31 March 2026
William Bay is a coastal suburb in Western Australia, Australia, with a population of approximately 164, making it a boutique locality. Located approximately 361 km from the Perth CBD, William Bay is a coastal area in Western Australia. The median household income is $57,408 AUD per year (ABS 2021 Census).
William Bay's income profile suggests a value-oriented market with competitive purchase prices. Coastal lifestyle appeal adds a premium that supports long-term demand.
Map shows William Bay, Western Australia, Australia.
Official Australia Post postcode for William Bay. A postcode may cover multiple suburbs.
Australia Post Postcode Finder →Usual resident population at census night. Source: ABS 2021 Census of Population and Housing.
ABS Census Data →Weekly median rent for occupied private dwellings. Source: ABS 2021 Census. Live rental data integration coming soon.
State Rental Authority →Annual median household income (before tax) for all households. Source: ABS 2021 Census.
ABS Census Data →Straight-line distance from the suburb centroid (ABS 2021 SAL geography) to the nearest capital city CBD. Actual driving distance will be longer.
Estimated 1 school within or near this suburb based on ABS 2021 data.
Find schools near William Bay on My School →Estimated 1 park and green spaces near this suburb. Source: ABS 2021 data.
Monthly median mortgage repayment for households currently paying off a mortgage. Source: ABS 2021 Census.
ABS Census Data →Proportion of separate houses vs units, townhouses, and other dwelling types. Source: ABS 2021 Census. Relevant for investors assessing rental demand mix.
ABS Census Data →Coastal lifestyle is a strong draw for William Bay, supporting both long-term rental demand and holiday letting potential. Seaside suburbs in Western Australia consistently attract interstate migration and lifestyle buyers. The median rent of $275/week (ABS 2021) indicates an affordable rental market. Owner-occupiers face a median mortgage repayment of $2,192/month. 75% of dwellings are separate houses, indicating a predominantly family-oriented, land-rich market.
William Bay offers moderate buy-and-hold potential — look for properties with value-add opportunities.
Achieving strong cash flow in William Bay is challenging at current rent-to-price ratios.
Renovation or flip strategies in William Bay face headwinds from a smaller buyer pool and slower turnover.
Run the numbers on a William Bay property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →William Bay faces a cautious growth outlook for 2026 — investors should focus on yield rather than short-term gains. Rental demand is expected to be stable, though landlords may need to remain competitive on pricing. Investor sentiment toward William Bay is currently lukewarm — value hunters may find opportunity here.
William Bay is a coastal area in Western Australia with a population of 164. The median rent is $275/week and the median household income is $57,408/year (ABS 2021 Census). As with any property investment, conduct thorough due diligence on current listings, vacancy rates, and local infrastructure plans before committing.
Key demand drivers in William Bay include lifestyle appeal and proximity to the coast. 75% of dwellings are separate houses. The area has approximately 1 schools and 1 parks nearby.
According to the ABS 2021 Census, William Bay has a population of approximately 164. For historical population trends and intercensal estimates, visit the ABS Census Data Explorer at abs.gov.au.
William Bay is approximately 361 km straight-line distance from the Perth CBD (calculated from ABS 2021 suburb centroid coordinates). As a regional or remote location, travel to the capital is significant — local amenities and employment are important investment considerations.