Hay Valley (postcode 5252) is a quiet locality in South Australia within the Mount Barker local government area. With a population of 25, the suburb has an established demographic with a median age of 42. Households earn a median income of $84K per year, with an average household size of 2.4 people. Recent annual estimates show population movement into the broader catchment, with population growth running at +3.2% year-on-year at the LGA level. SA employment has moved +1.6% year-on-year in the official ABS Labour Force trend series, which provides the broader jobs backdrop for this suburb. SA also had 21 Commonwealth-backed major projects under construction, 7 underway, and 7 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. Employment in the area leans toward agriculture and construction. The top ancestries reported are Australian, English, Greek.
The current median weekly rent is $610. The median monthly mortgage repayment is $4,333.
Looking at the investment signals, Population growth of +3.2% year-on-year points to strong growth demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.