Mumberkine is a small, quiet locality in Western Australia within the Goomalling local government area (postcode 6401). It is home to about 57 residents, with a settled mid-life population and a median age of 43. Households earn a median income of $50K per year, with an average household size of 2.4 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.8% 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 managers, clerical & administrative, sales. Employment in the area leans toward agriculture and retail trade. The top ancestries reported are English, Australian, Scottish.
The median weekly rent is $220 (Census 2021). The median monthly mortgage repayment is $1,900.
On the investment side, Population growth of +0.8% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.