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Suburb profile ·Mount Gambier LGA · SA ·5290

Mount Gambier SA 5290

Mount Gambier is in Mount Gambier LGA, SA, postcode 5290, with population 25,591.

The read

Income-first

Price, rent, or affordability signals are lining up without a clear local red flag, and the broader demand backdrop is at least supportive. Treat this as a suburb worth comparing seriously, then stress-test it in the calculator before making a conviction call.

$390/wk
+3.3% YoY
Mar 2025 → Mar 2026 · 5 periods
SA private rent report · suburb grain · Mar 2026
$390
$375
Mar 2025Mar 2026
Why it fits

Gross yield screens at about 6.8%. Entry price sits in the lower-cost range for a first-pass screen. Population scale is large enough to avoid reading this as a tiny locality only.

Median house
No local house series
Median rent
$390/wk
Rent-led investor candidate
3.3%YoY D8 vs AU
Gross yield
Need rent + price
Population
25,591
26K local footprint
D10 vs AU
Schools
10
Matched school context
D10 vs AU
Solar
3,821
184 added 12mo · 26MW

Price history

HousesUnits

Affordability

Buying
4.8x
median home price as a multiple of annual household income
Affordable
Renting
33%
median weekly rent as a share of gross household income (the 30% rule)
Stretched

Owners with a mortgage repay a median of $1,083/mo, while renters pay about $1,690/mo — renting runs $607/mo higher on these medians.

Median price
$300K
Household income · yr
$62K
Median rent · wk
$390
Owner mortgage · mo
$1,083

Household income

$62K household · yr-17.3% vs SA suburb median
Personal
$36K
Family
$85K
Household
$62K

Schools

Total10
Avg ICSEA956
Students5,519
Catholic1
Government8
Independent1
  • Reidy Park Primary SchoolPrimary · Government · ICSEA 990
  • Mount Gambier High SchoolSecondary · Government · ICSEA 946
  • Grant High SchoolSecondary · Government · ICSEA 954
  • Mount Gambier North Primary SchoolPrimary · Government · ICSEA 888
  • Gordon Education CentreSpecial · Government · ICSEA 951
  • Mulga Street Primary SchoolPrimary · Government · ICSEA 943
Crime 2024-25
1,838
7,182 per 100k
D8 vs AU

Crime

Rate · per 100k7,182
Total incidents1,838· 2024-25
  • Assault54266%
  • Break And Enter21626%
  • Drug Offences00%
  • Fraud617%

Full data detail

Mount Gambier SA — Property Data and Demographics

Located in South Australia within the Mount Gambier local government area, Mount Gambier is a well-populated suburb (postcode 5290). With a population of 25,591, the suburb has an established demographic with a median age of 41. Households earn a median income of $62K per year, with an average household size of 2.2 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.1% year-on-year at the LGA level. SA employment has moved +2.1% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. SA also had 23 Commonwealth-backed major projects under construction, 2 underway, and 11 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are community & personal service, professionals, technicians & trades. Employment in the area leans toward healthcare and retail trade. The top ancestries reported are Australian, English, Scottish.

Units have a median price of $300,000 (+7.5% YoY). The current median weekly rent is $390. This gives a gross rental yield of approximately 6.8%. The median monthly mortgage repayment is $1,083.

Mount Gambier is served by 10 schools, including 5 primary, 2 secondary, 2 combined, 1 special. The average ICSEA score is 956, which is around the national average of 1,000. Public transport access includes 1 bus stop. Healthcare facilities include 1 public hospital. The crime rate in the Mount Gambier LGA is moderate at 7,182 incidents per 100,000 population.

From an investment perspective, Gross rental yield sits at around 6.8% (high yield). Property prices sit below the state median ($300K/$950K), which can point to relative value. The price-to-income ratio of 4.8x is considered affordable. House prices have moved +7.5% year-on-year. Population growth of +0.1% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.

Market & money
Investment signalsHeuristics
Rental Yield6.8% High Yield
Price vs State$300K/$950K Below Median
Affordability4.8x Affordable
Price Momentum+7.5% Rising
Pop. Growth+0.1%· Stable
Development+0%· Steady
InvestmentSA
Mortgage · mth$1,083
Rent · wk(Census)$220
Market rent · wk(Q1 2026)$390
Gross yield3.8%
Price / income4.8x
Population growth · Mount Gambier LGAABS ERP
Population (2025)28,057
5-year growth+0.4% CAGR
YoY change+0.1%
20012025
Development · Mount Gambier LGAABS Approvals
Approvals (2026)138
Houses118
Units20
YoY change+0%
Employment · Mount Gambier LGASALM
Unemployment (Dec-25)4.4%
YoY change+1.7pp
Dec-10Dec-25
Property investors · Postcode 5290ATO
Negatively geared568 (3.7% of filers)
Avg rental loss$5,303/yr
Landlords (rental income)1,471
Reported capital gains973
People & prosperity
DemographicsCensus 21
Population25,591
Median age41
Household size2.2
HH income · wk$1,197
Personal income · wk$691
Persons / bedroom0.7
IncomeATO 22-23
Median income$53,788
Mean income$60,435
Earners10,213
YoY change+5.4%
SEIFA indexABS
Advantage (IRSAD)2/10
Education (IEO)1/10
Economic (IER)1/10
Disadvantage (IRSD)1/10
Area & amenity
Local amenitiesOSM
Supermarkets8
Pharmacies8
GP / clinics5
Fuel stations13
Cafes & dining43
aldi1
coles1
woolworths3
TransportGTFS
Bus stops1
Hospitals · 1AIHW
Public1
Private0
Mount Gambier and Districts Health Servicepublic
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Current status
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Sources & freshness
Strong evidence

Mount Gambier has enough direct local evidence for a first-pass decision.

QuickProperty mixes release files, Census baselines, and matched local services on this page. Read the status panel before treating every metric as equally fresh.

PRICE POSTURE
Prices come from release-based suburb series.

Official quarterly house sales workbooks; units remain on ABS fallback coverage

RENT POSTURE
Rent is using a state market dataset when available.

Use current rent as a starting signal, not as a fixed underwriting truth.

SERVICE POSTURE
Service coverage is matched locally, not inferred nationally.

Schools, transport, and hospitals are useful as presence signals, but they still have different source cadences.

Data status
Property prices
SA metropolitan median house sales · 2024 · Official quarterly house sales workbooks; units remain on ABS fallback coverage
stable source · automated · every update · quarterly
Available
Market rent
SA Housing Authority / CBS · Q1 2026 · State market dataset
medium stability · automated · every update · quarterly
Available
Crime
State crime dataset · 2024-25 · Area-level release dataset
Available
Schools
ACARA 2025 · 10 schools matched
stable source · automated · every update · annual
Available
Hospitals
AIHW · 1 hospitals matched
medium stability · manual file · snapshot · mixed
Available
Transport
GTFS feeds · 1 matched stops/stations
medium stability · manual file · snapshot · mixed
Available
Population growth
ABS ERP · 2025 · Annual estimate series
stable source · automated · every update · annual
Available
Building approvals
ABS Building Approvals · 2026 · Annual release series
stable source · automated · every update · monthly
Available
Available means a direct local dataset is linked. Verify means coverage exists but freshness or precision is weaker, such as ABS price fallback, Census rent fallback, or low-confidence hospital matching.

Mount Gambier FAQ

Common questions
  1. What LGA is Mount Gambier in?

    Mount Gambier is in the Mount Gambier Local Government Area, SA, postcode 5290. Council-level context for Mount Gambier LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.

  2. What is the typical weekly rent in Mount Gambier?

    The median weekly rent in Mount Gambier is $390/wk, based on the current market rent dataset. The current rent signal is rent-led investor candidate.

  3. What does the rent signal say about Mount Gambier?

    Rent-led investor candidate: Gross rent yield screens at about 6.8%. Use this as a suburb screening signal before comparing candidates or modelling a purchase; the matching rent ranking can provide broader market context.

  4. Is Mount Gambier a good investment?

    QuickProperty's investment signals for Mount Gambier show: High Yield, Below Median, Affordable. These are computed from price, rent, income, and population data — not an opaque score.

  5. Where does QuickProperty get its data for Mount Gambier?

    Property prices come from state Valuers General offices and ABS Data by Region. Demographics are from ABS Census 2021. School ICSEA scores are from ACARA. Crime statistics are from state police agencies. Transport data is sourced from GTFS feeds.

  6. How often is the Mount Gambier data updated?

    Property prices update quarterly. RBA macro indicators update with each deploy. Demographics are from Census 2021. School ICSEA scores are from ACARA 2025.