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Middleton vs St Marys

Property investment comparison - Middleton, SA 5213 vs St Marys, SA 5042

Head-to-head across core investment metrics: Middleton wins 2, St Marys wins 4. The better choice depends on whether you're optimising for cash flow, growth, affordability, or liquidity, the table below highlights the winner on each metric.

MetricMiddletonSt Marys
Median house price$1.0M$1.0M
Median unit price$565K$540K
Gross rental yield (houses)3.06%-
Gross rental yield (units)4.43%4.80%
1-year house growth+12.5%+11.7%
3-year house growth+15.9%+30.9%
Vacancy rate1.9%0.3%
Population1,2983,010

Middleton vs St Marys: what the numbers say

The median house price is $1.0M in Middleton and $1.0M in St Marys, so Middleton is the cheaper entry point.

For units, Middleton sits at a median of $565K against $540K in St Marys, which makes St Marys the more affordable unit market and Middleton the pricier one.

Over the past year house prices moved +12.5% in Middleton and +11.7% in St Marys, so recent momentum favours Middleton, although both suburbs recorded growth.

Looking back three years, Middleton houses are +15.9% and St Marys houses +30.9%, so St Marys has compounded faster than Middleton over the longer window.

Rental vacancy is 0.3% in St Marys and 1.9% in Middleton, so landlords in St Marys face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

St Marys is the bigger suburb, with a population of 3,010 against 1,298, roughly 2.3 times the size of Middleton; a larger suburb usually means a deeper pool of buyers and tenants.

In short: Middleton for a lower purchase price, Middleton for recent price momentum, St Marys for the tighter rental market. Which matters more depends on whether the investor is buying for cash flow, capital growth or affordability.

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