Property market overview for this South Australian suburb.
This market is the suburb as the publisher names and groups it in its own release. The boundary is the publisher’s naming, not a boundary APRIQ drew and not an ABS or postal polygon.
Completions in the March quarter 2026 were equivalent to 84% of commencements, for South Australia. These figures compare pipeline flows and do not track individual approved dwellings through construction.
Achieved rents moved +12.5% over the year, against +5.7% for the middle suburb in South Australia.
These signals are shown separately so you can see what is driving the market. Explore them under Demand & supply below.
At $450 a week, Mount Gambier is higher than 10% of the 224 SA suburbs we hold.
Rents there are up 12.5% over the past year, faster than South Australia as a whole (up 3.7%).
Based on 275 new leases, which is a large enough sample to be steady quarter to quarter.
The most common new lease there was a three-bedroom house, at $475 a week across 145 of them.
Houses there rent for $480 and units for $330, so the figure above sits between two different markets.
In June quarter 2026, the median weekly rent rose 5.3% on the quarter before, from $428 to $450. Across the 72 quarterly changes held here, 14 were larger.
Six signals show how demand, supply and rents are moving. Open Data & method on any signal for the figures, rule and source behind it.
No population or migration evidence can be mapped to Mount Gambier. No measurement and no defensible mapping for a suburb. Broader evidence for South Australia is shown where it exists.
Not enough evidence
How fast the population is growing, against the national rate.
no population growth rate for this market
Not enough evidence
Which component moved the population most over the latest year the ABS splits it.
the ABS publishes no component split for this market
Not enough evidence
Whether dwelling approvals are running above or below the year before.
not enough approval history to compare two years
Moderate
How much housing is being finished, against how much is being started.
| Dwellings completed, South Australia | 3,102 | March quarter 2026 |
|---|---|---|
| Dwellings started, South Australia | 3,686 | March quarter 2026 |
| Completions as a share of commencements | 84% | March quarter 2026 |
Strong at or above 95% of commencements, weak below 80%, moderate in between — completions in the quarter compared with commencements in the same quarter, both stated beside this rule. These figures compare pipeline flows and do not track individual approved dwellings through construction.
High
How fast achieved rents are rising, against the rest of the state.
| Rent change over a year, Mount Gambier | +12.5% | June quarter 2026 |
|---|---|---|
| Rent change over a year, the middle suburb in South Australia | +5.7% | June quarter 2026 |
High when rents rose at least one percentage point faster than the state, low when at least a point slower, moderate in between. Compared against the state rather than the nation because each bond authority defines its own series: changes compare, levels do not.
Not enough evidence
How much of this market's picture was measured at this market's own geography.
no demand evidence can be mapped to this market
A sale-price series APRIQ can publish is not currently available for this market. Current rent, demand and supply data remain available on this page.
Rising faster than most of South Australia
How rents here moved over a year, against the typical suburb in South Australia.
| Rent change over a year here | +12.5% | June quarter 2026 against a year earlier |
|---|---|---|
| The middle suburb in South Australia | +5.7% | June quarter 2026 against a year earlier |
| Difference | +6.8 percentage points | June quarter 2026 against a year earlier |
| Markets in the comparison | 224 | June quarter 2026 against a year earlier |
The difference between this market’s one-year rent change and the middle change across every suburb the same publisher reports, in percentage points: 3 or more above is well above, 1 above is above, within 1 either way is in line. Changes are compared within one state because each bond authority defines its own series — movement may be compared between them, the rent itself may not.
Quarterly achieved-rent history across the full published series for this market.
| Median weekly rent | $450 | publisher’s figure · June quarter 2026 |
|---|
Quarter-by-quarter rent history for the full published series.
| Quarter | Median weekly rent | Change on the quarter before |
|---|---|---|
| June quarter 2026 | $450 | Up 5.3% |
| March quarter 2026 | $428 | Down 0.6% |
| December quarter 2025 | $430 | Up 4.9% |
| September quarter 2025 | $410 | Up 2.5% |
| June quarter 2025 | $400 | Down 2.4% |
| March quarter 2025 | $410 | Up 7.9% |
| December quarter 2024 | $380 | Down 3.2% |
| September quarter 2024 | $393 | Up 3.3% |
| June quarter 2024 | $380 | Up 2.0% |
| March quarter 2024 | $373 | Up 6.4% |
| December quarter 2023 | $350 | No change |
| September quarter 2023 | $350 | No change |
| June quarter 2023 | $350 | Up 7.7% |
| March quarter 2023 | $325 | Up 1.6% |
| December quarter 2022 | $320 | No change |
| September quarter 2022 | $320 | Up 3.2% |
| June quarter 2022 | $310 | Up 10.7% |
| March quarter 2022 | $280 | Down 1.8% |
| December quarter 2021 | $285 | Up 3.6% |
| September quarter 2021 | $275 | No change |
| June quarter 2021 | $275 | Up 5.8% |
| March quarter 2021 | $260 | No change |
| December quarter 2020 | $260 | Up 8.3% |
| September quarter 2020 | $240 | Down 4.0% |
| June quarter 2020 | $250 | No change |
| March quarter 2020 | $250 | No change |
| December quarter 2019 | $250 | Up 5.3% |
| September quarter 2019 | $238 | Down 3.1% |
| June quarter 2019 | $245 | Down 2.0% |
| March quarter 2019 | $250 | Up 4.2% |
| December quarter 2018 | $240 | No change |
| September quarter 2018 | $240 | No change |
| June quarter 2018 | $240 | Down 2.0% |
| March quarter 2018 | $245 | Up 2.1% |
| December quarter 2017 | $240 | Up 4.3% |
| September quarter 2017 | $230 | Up 4.5% |
| June quarter 2017 | $220 | Down 4.3% |
| March quarter 2017 | $230 | Up 2.2% |
| December quarter 2016 | $225 | Up 2.3% |
| September quarter 2016 | $220 | No change |
| June quarter 2016 | $220 | Down 4.3% |
| March quarter 2016 | $230 | Up 4.5% |
| December quarter 2015 | $220 | Up 7.3% |
| September quarter 2015 | $205 | Down 6.8% |
| June quarter 2015 | $220 | Up 2.3% |
| March quarter 2015 | $215 | Down 2.3% |
| December quarter 2014 | $220 | Up 2.6% |
| September quarter 2014 | $215 | Up 2.1% |
| June quarter 2014 | $210 | Up 2.4% |
| March quarter 2014 | $205 | No change |
| December quarter 2013 | $205 | Up 2.5% |
| September quarter 2013 | $200 | No change |
| June quarter 2013 | $200 | Down 4.8% |
| March quarter 2013 | $210 | Up 5.0% |
| December quarter 2012 | $200 | No change |
| September quarter 2012 | $200 | No change |
| June quarter 2012 | $200 | Down 4.8% |
| March quarter 2012 | $210 | Up 10.5% |
| December quarter 2011 | $190 | No change |
| September quarter 2011 | $190 | Down 5.0% |
| June quarter 2011 | $200 | Up 8.1% |
| March quarter 2011 | $185 | No change |
| December quarter 2010 | $185 | Up 5.7% |
| September quarter 2010 | $175 | Down 5.4% |
| June quarter 2010 | $185 | Up 5.7% |
| March quarter 2010 | $175 | No change |
| December quarter 2009 | $175 | Up 2.9% |
| September quarter 2009 | $170 | Down 2.9% |
| June quarter 2009 | $175 | No change |
| March quarter 2009 | $175 | No change |
| December quarter 2008 | $175 | Up 2.9% |
| September quarter 2008 | $170 | Up 3.0% |
| June quarter 2008 | $165 | — |
The figure above blends every dwelling type the publisher reports. These are the same quarter, split the way South Australia splits it.
| Dwelling type | Median weekly rent | Rent change — 1 year | New leases |
|---|---|---|---|
| Houses | $480 | Up 6.7% | 195 |
| Units and flats | $330 | Up 6.5% | 80 |
| All dwellings | $450 | Up 12.5% | 275 |
There is no yield here because no current sale price exists to divide by — see Prices & Sales above for why.
Only New South Wales publishes rent quartiles, so the spread of rents within this market is not shown.
The suburbs immediately above and below Mount Gambier when ranked by the same figure for the same period — nearby in the state ranking, not necessarily nearby on a map.
| Suburb | Median rent | Rent change — 1 year |
|---|---|---|
| Whyalla Jenkins | $430 | Up 6.2% |
| Bowden | $449 | Down 30.9% |
| Croydon Park | $450 | Down 18.2% |
| Mount Gambier | $450 | Up 12.5% |
| Pennington | $450 | Down 18.2% |
| Seaford | $458 | Down 18.2% |
| Oakden | $469 | Down 24.3% |
Or put them in columns: Compare with similarly ranked markets.
Latest achieved rents by dwelling type and bedroom count. Blank cells indicate no published figure for that combination.
| Size | Houses | Units and flats |
|---|---|---|
| 1 bedroom | $285count withheld | $31010 new leases |
| 2 bedrooms | $41015 new leases | $33055 new leases |
| 3 bedrooms | $475145 new leases | $44510 new leases |
| 4 bedrooms | $52535 new leases | Not published |
Population data on suburb pages uses the ABS statistical area containing the suburb. The market card names that wider area; open Data & method for the geography and source.
Not enough evidence
How fast the population here is changing, against how fast Australia is changing.
No population estimate is published for this market at a geography the ABS uses.
Counted for Mount Gambier on Census night, 10 August 2021. A Census count is a stock on one night, not a series: it cannot show a trend, and five years on it describes 2021, not today. It is here because how many households there are and how many people share a dwelling are the denominators every demand question eventually needs.
| Households — occupied private dwellings | 10,528 | one count: an occupied private dwelling on Census night is the ABS definition of a household |
|---|---|---|
| Average household size | 2.2 people | per occupied private dwelling, across 10,528 of them |
Source: Australian Bureau of Statistics, Census of Population and Housing 2021, General Community Profile (tables G02, G35, G36), used under CC BY 4.0. © Commonwealth of Australia (Australian Bureau of Statistics).
Dwelling approvals are published by council area, not by suburb, and an approval is counted for the boundary that granted it — so none are shown here rather than another area’s.
Not enough evidence
How many dwellings this market approved over twelve months for every thousand residents, against the national rate. Approvals are permission to build, not completed dwellings.
Dwelling approvals are published by council area, and this market is not one.
Counted for Mount Gambier on Census night, 10 August 2021. The stock every approval above eventually adds to, as it stood on one night in 2021. The occupied count is the households figure under Demand — the ABS definition makes them one count, so it is printed once rather than twice. The occupied and unoccupied counts are separately rounded by the ABS and do not exactly sum to the total, so no missing figure is derived here.
| Private dwellings | 11,690 | all private dwellings on Census night |
|---|---|---|
| Unoccupied on Census night | 1,156 | holiday homes and empty dwellings included; not a rental vacancy rate |
Source: Australian Bureau of Statistics, Census of Population and Housing 2021, General Community Profile (tables G02, G35, G36), used under CC BY 4.0. © Commonwealth of Australia (Australian Bureau of Statistics).
No APRIQ forward rent forecast is published for Mount Gambier yet. The forecasting model remains in historical backtesting.
The method’s public record so far, across every market at once and clearly a backtest, not a prediction: at 1 quarter ahead, 83.8% of 10,476 graded backtests landed inside their ranges, at a median width of ±7.9%.
See the full historical record on the forecast scorecard. Backtest results describe historical model performance, not a prediction for this market.
Check sample size, data period, geography, source and calculation rules for this market.
Strong
How many observations sit behind the current figure on this page.
| New leases behind the current figure | 275 | June quarter 2026 |
|---|---|---|
| Quarters of history | 73 | to June quarter 2026 |
| How current | The latest quarter published anywhere | June quarter 2026 |
| Origin | As the publisher published it | June quarter 2026 |
| Knowability | Dated by the publisher’s own release timing | June quarter 2026 |
Strong needs 200 or more new leases behind the current figure; moderate needs 50. Fewer than that reads as thin: one unusual property can move the figure. A withheld count cannot earn better than thin, because a suppressed number is unknown rather than small. How current the figure is, is a separate fact stated as dates beside this reading, never folded into this word.
Which period the current rent figure describes, how it sits against the newest quarter published anywhere, and whose clock dated it — as dates, because a graded word would hide exactly the part worth checking.
| Describes | June quarter 2026 |
|---|---|
| Standing | This is the latest quarter published anywhere. |
| Dated by | Dated by the publisher’s own release timing. |
Market data sources are named beside the figures above. APRIQ keeps the publication period, source, licence and calculation method available for inspection. See full sources & methodology →
