Best SA suburbs to invest in under $400K
5 suburbs match this filter today. Average 5-year capital growth across them is 8.0%/yr; average gross yield is 3.4%. The dominant signal right now is capital growth — Average 5-year capital growth in this filter is driving the ranking. Top pick: Murray Bridge (49/100). 9.2%/yr capital growth, population +6.5% (5y).
Last updated: May 2026.
Score legend · 0–40 weak · 40–60 moderate · 60–75 strong · 75+ exceptional. Scores blend growth, yield, demand and infrastructure signals against your strategy. Full methodology →
- #19.2%/yr 5y growth49Growth🟡 Near capDrivers
- Capital growth9.2%/yr
- Population growth+6.5% (5y)
- Rental yield3.2%
Risks- At top of budget (99% of cap)
- No major construction project in this state
5253 · Murray BridgeCompare investment case - #27.4%/yr 5y growth48Balanced🟢 Under budgetDrivers
- Capital growth7.4%/yr
- Rental yield3.4%
- Population growth+6.5% (5y)
Risks- No major construction project in this state
5700 · Port AugustaCompare investment case - #38.2%/yr 5y growth46Growth🟡 Near capDrivers
- Capital growth8.2%/yr
- Population growth+6.5% (5y)
Risks- At top of budget (99% of cap)
- No major construction project in this state
5290 · Mount GambierCompare investment case - #47.2%/yr 5y growth42Balanced🟢 Under budgetDrivers
- Rental yield4.2%
- Capital growth7.2%/yr
- Population growth+6.5% (5y)
Risks- Only 3,609 residents — illiquid, slow to sell
- No major construction project in this state
5600 · WhyallaCompare investment case - #57.8%/yr 5y growth26Balanced🟢 Under budgetDrivers
- Capital growth7.8%/yr
- Population growth+6.5% (5y)
- Rental yield3.2%
Risks- Only 176 residents — illiquid, slow to sell
- No major construction project in this state
5540 · Port Pirie RegionalCompare investment case
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