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Suburb profile ·Nillumbik LGA · VIC ·3089

Diamond Creek VIC 3089

Diamond Creek is in Nillumbik LGA, VIC, postcode 3089, with population 12,503.

The read

Livability-led

The page has enough signal to be useful, but the story is mixed rather than decisive. Use compare mode to pressure-test it against stronger nearby options, then use the calculator if it still makes the shortlist.

$875K
-19.7% YoY
2014 → 2025 · 12 periods
ABS + state medians
$1.1M
$550K
2014 2025
Why it fits

School coverage gives the page a stronger family/livability signal. Transport coverage adds a practical access signal. Higher SEIFA context supports a stronger local-quality read.

Median house
$875K
House median, latest period
19.7%YoY D5 vs AU
Median rent
$580/wk
Rent context available
D10 vs AU
Gross yield
3.4%
Below investor band
D9 vs AU
Population
12,503
13K local footprint
D10 vs AU
Schools
4
Matched school context
D10 vs AU
Solar
1,604
87 added 12mo · 10MW

Price history

HousesUnitsVacant land

Trend & investor depth

Indicative cashflow-$386/wk (-$20,080/yr) · interest-only @ 6.1%, 80% LVR

Indicative cashflow is interest-only and excludes tax — use the calculator for a full projection.

Affordability

Buying
6.7x
median home price as a multiple of annual household income
Moderate
Renting
23%
median weekly rent as a share of gross household income (the 30% rule)
Manageable

Owners with a mortgage repay a median of $2,167/mo, while renters pay about $2,513/mo — renting runs $346/mo higher on these medians.

Median price
$875K
Household income · yr
$130K
Median rent · wk
$580
Owner mortgage · mo
$2,167
Gross yield
3.4%

Household income

$130K household · yr+58.4% vs VIC suburb median
Personal
$51K
Family
$144K
Household
$130K

Growth outlook · Nillumbik LGA

Dwellings
+11.3%
22,410 → 24,950
+2,540 dwellings
Population
+6.3%
63,450 → 67,420
Households
+11.3%
21,950 → 24,440

LGA-level official projection (Victoria in Future 2023, DTP). Indicative of the wider council area, not a suburb-level forecast.

Schools

Total4
Avg ICSEA1058
Students1,701
Catholic1
Government3
  • Diamond Creek Primary SchoolPrimary · Government · ICSEA 1065
  • Diamond Creek East Primary SchoolPrimary · Government · ICSEA 1066Zoned
  • Diamond Valley CollegeSecondary · Government · ICSEA 1020
  • Sacred Heart SchoolPrimary · Catholic · ICSEA 1080

1 of 4 schools here operate published enrolment zones (catchments). Zone boundaries set eligibility — check the official source for the exact catchment. Not enrolment advice.

Crime Year ending Dec 2025
2,353
3,681 per 100k
D5 vs AU

Crime

Rate · per 100k3,681
Total incidents2,353· Year ending Dec 2025
  • Assault18241%
  • Sexual Offences419%
  • Robbery184%
  • Break And Enter19945%

Full data detail

Diamond Creek VIC — Property Data and Demographics

Diamond Creek (postcode 3089) is a settled mid-to-large suburb in Victoria within the Nillumbik local government area. It is home to about 12,503 residents, with an established family demographic and a median age of 39. Households earn a median income of $130K per year, with an average household size of 2.9 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.4% year-on-year at the LGA level. VIC employment has moved +0.9% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. VIC also had 45 Commonwealth-backed major projects under construction, 17 underway, and 27 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 professionals, technicians & trades, managers. Employment in the area leans toward construction and healthcare. The top ancestries reported are English, Australian, Irish.

The median house price in Diamond Creek is $875,000, having fallen sharply by 19.7% over the past year. Units have a median price of $823,000 (+4.2% YoY). The current median weekly rent is $580. This gives a gross rental yield of approximately 3.4%. The median monthly mortgage repayment is $2,167.

Diamond Creek is served by 4 schools, including 3 primary, 1 secondary. The average ICSEA score is 1058, which is above the national average of 1,000. Public transport access includes 4 rail stations, 40 bus stops. The crime rate in the Nillumbik LGA is below average at 3,681 incidents per 100,000 population.

From an investment perspective, Diamond Creek shows a gross rental yield of approximately 3.4%, rated as moderate yield. Property prices are near the state median ($875K/$875K). The price-to-income ratio of 6.7x is considered moderate. House prices have moved -19.7% year-on-year. Population growth of +0.4% 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 Yield3.4%· Moderate Yield
Price vs State$875K/$875K· Near Median
Affordability6.7x· Moderate
Price Momentum-19.7% Falling
Pop. Growth+0.4%· Stable
Development+0%· Steady
InvestmentVIC
Mortgage · mth$2,167
Rent · wk(Census)$430
Market rent · wk(Sep 2025)$580
Gross yield2.6%
Price / income6.7x
Population growth · Nillumbik LGAABS ERP
Population (2025)63,797
5-year growth-0.2% CAGR
YoY change+0.4%
20012025
Development · Nillumbik LGAABS Approvals
Approvals (2026)82
Houses47
Units35
YoY change+0%
Employment · Nillumbik LGASALM
Unemployment (Dec-25)1.9%
YoY change+0.2pp
Dec-10Dec-25
Property investors · Postcode 3089ATO
Negatively geared772 (9.3% of filers)
Avg rental loss$8,774/yr
Landlords (rental income)1,193
Reported capital gains762
People & prosperity
DemographicsCensus 21
Population12,503
Median age39
Household size2.9
HH income · wk$2,508
Personal income · wk$983
Persons / bedroom0.8
SEIFA indexABS
Advantage (IRSAD)10/10
Education (IEO)9/10
Economic (IER)10/10
Disadvantage (IRSD)10/10
Area & amenity
Local amenitiesOSM
Supermarkets2
Pharmacies2
GP / clinics7
Fuel stations3
Cafes & dining27
coles1
iga1
TransportGTFS
Rail stations4
Bus stops40
Diamond Creek Station
Diamond Creek Station/Station St
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Current status
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Sources & freshness
Strong evidence

Diamond Creek 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
Manual release files still matter here.

DataVic-discovered annual suburb price workbooks parsed into suburb prices. Quarterly VIC resources are discovered and cached, but not yet used as current-price anchors.

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
VIC Property Sales Report · 2025 · DataVic-discovered annual suburb price workbooks parsed into suburb prices. Quarterly VIC resources are discovered and cached, but not yet used as current-price anchors.
medium stability · manual file · every update · quarterly
Available
Market rent
Homes Victoria · Sep 2025 · State market dataset
medium stability · automated · every update · quarterly
Available
Crime
VIC Crime Statistics Agency · Year ending Dec 2025 · Area-level release dataset
Available
Schools
ACARA 2025 · 4 schools matched
stable source · automated · every update · annual
Available
Hospitals
AIHW · No linked local hospital coverage
medium stability · manual file · snapshot · mixed
Missing
Transport
GTFS feeds · 44 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.

Diamond Creek FAQ

Common questions
  1. What LGA is Diamond Creek in?

    Diamond Creek is in the Nillumbik Local Government Area, VIC, postcode 3089. Council-level context for Nillumbik LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.

  2. What is the median house price in Diamond Creek?

    The current median house price in Diamond Creek, VIC is $875K, based on the latest available sales data from state Valuers General offices and ABS Data by Region.

  3. What is the typical weekly rent in Diamond Creek?

    The median weekly rent in Diamond Creek is $580/wk, based on the current market rent dataset. The current rent signal is rent context available.

  4. What does the rent signal say about Diamond Creek?

    Rent context available: Diamond Creek has usable rent context. Use this as a suburb screening signal before comparing candidates or modelling a purchase; the matching rent ranking can provide broader market context.

  5. Is Diamond Creek a good investment?

    QuickProperty's investment signals for Diamond Creek show: Moderate Yield, Near Median, Moderate. These are computed from price, rent, income, and population data — not an opaque score.

  6. Where does QuickProperty get its data for Diamond Creek?

    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.

  7. How often is the Diamond Creek 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.