Located in Western Australia within the Kalgoorlie-Boulder local government area, Williamstown is a small, quiet locality (postcode 6430). The area has roughly 124 residents and a settled, mature resident base, with a median age of 50. Households earn a median income of $51K per year, with an average household size of 1.9 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.2% year-on-year at the LGA level. WA employment has moved +1.9% year-on-year in the official ABS Labour Force trend series, which provides the broader jobs backdrop for this suburb. WA also had 24 Commonwealth-backed major projects under construction, 12 underway, and 12 in planning as at 2025-09-01, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are technicians & trades, machinery operators & drivers, sales. Employment in the area leans toward mining and retail trade. The top ancestries reported are Australian, English, Scottish.
Median house prices in Williamstown stand at $310,000, having moved lower by 4.9% over the last twelve months. The median weekly rent is $215 (Census 2021). This gives a gross rental yield of approximately 3.6%. The median monthly mortgage repayment is $650.
On the investment side, The gross rental yield works out to roughly 3.6%, which reads as moderate yield. Property prices sit below the state median ($310K/$1.0M), which can point to relative value. The price-to-income ratio of 6.0x is considered moderate. House prices have moved -4.9% year-on-year. Population growth of +0.2% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.