Diamond Creek, VIC 3089 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Diamond Creek is a suburb of Victoria, postcode 3089, home to 12,503 residents with an established residential profile. Located in the Nillumbik local government area and roughly 23 km from the Melbourne CBD.
Snapshot
Demographics
- Population
- 12,503
- Median age
- 39 years
- Median household income
- $2,508 /week
- Median personal income
- $983 /week
- Median family income
- $2,761 /week
- Average household size
- 2.9
- Persons per bedroom
- 0.8
- Local government area
- Nillumbik
- Statistical region (SA4)
- Melbourne - North East
- Remoteness classification
- Major Cities of Australia
- Federal electorate
- Jagajaga
Property & cost of living
- Median rent
- $430 /week
- Median monthly mortgage
- $2,167
- Rent share of household income
- 17%
Schools
- Diamond Creek Primary School
- Sacred Heart School
- Diamond Creek East Primary School
- Diamond Valley College
- North-Eastern Montessori School
Transport
- Within 800 m walk: 7 bus stops
- Within 1.6 km: 2 metro stops, 28 bus stops
- Grassy Flat Rd/Broad Gully Rd
- Ryan St/Broad Gully Rd
- Clyde St/Collins St
- Amaroo Ct/Broad Gully Rd
- Diamond Creek Station
Lifestyle & amenities
- 6 cafés
- 23 restaurants
- 4 pubs and bars
- 63 parks and reserves
- 29 gyms and fitness centres
- 2 supermarkets
- 40 playgrounds
Climate
- Warmest month: Jan (25.9°C avg max)
- Coolest month: Jul (13.5°C avg max)
- Annual rainfall: 648 mm
- Reference station: Melbourne Regional Office, 22.4 km away
NBN & connectivity
Fibre to the Node serves 53.5% of the 5,161 resolvable premises in Diamond Creek. Most premises here connect via fibre to a street cabinet, then copper into the home. Speeds depend heavily on the copper run length — NBN 100 is rarely achievable on long runs.
- Fibre to the Premises: 43.7%
- Hybrid Fibre-Coaxial: 0.6%
- Fibre to the Node: 53.5%
- Fixed Wireless: 2.1%
- Sky Muster (Satellite): 0.1%
Safety
- Recorded offences: 440 across postcode 3089 in the year to December 2025.
- Most common categories: 292 property offences, 71 violent offences, 10 drug offences.
- Wider Nillumbik LGA: 3,681 offences per 100,000 residents.
Frequently asked questions
What is the population of Diamond Creek?
Diamond Creek (VIC 3089) had 12,503 residents at the most recent ABS Census. The median age is 39. It sits within the Nillumbik local government area.
What is the median rent in Diamond Creek?
The median advertised rent in Diamond Creek is $430/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Diamond Creek?
Yes — 5 schools are listed within or near Diamond Creek covering government, catholic, independent sectors. Nearest include: Diamond Creek Primary School (0.5 km), Sacred Heart School (0.9 km), Diamond Creek East Primary School (1.5 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Diamond Creek?
Diamond Creek is predominantly served by Fibre to the Node (53.5% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Diamond Creek?
Across postcode 3089, 440 offences were recorded in the 12 months to December 2025. The most common offence categories were property (292), violent (71), drug offences (10). Crime statistics are recorded by area (postcode or LGA), not by individual suburb. Data sourced from each state's crime statistics agency.
What is the climate like in Diamond Creek?
In Diamond Creek, mean daily temperatures range from 10.3°C to 19.9°C and annual rainfall is 648 mm measured at the Melbourne Regional Office weather station (22.4 km away). Long-term averages from the Bureau of Meteorology.
What public transport options are in Diamond Creek?
30 public transport stops are mapped within 1.6 km of the Diamond Creek centroid. Within 800 m, you'll find 7 bus stops. Stop data is sourced from state government GTFS feeds.
Sources & methodology
Demographics from ABS Census. Property data from SQM Research. Climate from Bureau of Meteorology. Schools from ACARA. NBN from NBN Co. Amenities from OpenStreetMap. See full methodology.
Additional sources for this profile: