Cardiff (postcode 6225) is a quiet locality in Western Australia within the Collie local government area. The area has roughly 118 residents and an older-leaning population, with a median age of 50. Households earn a median income of $62K per year, with an average household size of 2.5 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +1.3% 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 machinery operators & drivers, labourers, managers. Employment in the area leans toward mining and accommodation & food. The top ancestries reported are English, Australian, Scottish.
Cardiff has a median house price of $750,000, which has surged by 100% year-on-year. The median weekly rent is $233 (Census 2021). This gives a gross rental yield of approximately 1.6%. The median monthly mortgage repayment is $1,544.
From an investment perspective, Cardiff shows a gross rental yield of approximately 1.6%, rated as low yield. Property prices are near the state median ($750K/$1.0M). The price-to-income ratio of 12.2x is considered stretched. House prices have moved +100.0% year-on-year. Population growth of +1.3% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.