Square Mile (postcode 5291) is a quiet locality in South Australia within the Grant local government area. It is home to about 31 residents, with a mature demographic and a median age of 47. Households earn a median income of $188K per year, with an average household size of 3.4 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.6% year-on-year at the LGA level. SA employment has moved +2.1% 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, technicians & trades, machinery operators & drivers. Employment in the area leans toward accommodation & food and construction. The top ancestries reported are Australian, English, Italian.
The median weekly rent is $180 (Census 2021). The median monthly mortgage repayment is $1,950.
The crime rate in the Grant LGA is higher than average at 9,677 incidents per 100,000 population.
On the investment side, Population growth of +0.6% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.