Suburb profile · ABS Census 2021
Diamond Creek suburb profile
Diamond Creek, VIC · Postcode 3089
This Diamond Creek suburb profile summarises official Australian Bureau of Statistics Census 2021 data for Diamond Creek, VIC (postcode 3089). Use it as a free suburb report covering population, median rent, household income, age, housing tenure and employment, plus how those figures changed since Census 2016— then compare Diamond Creek with nearby suburbs.
Diamond Creek at a glance
Population
12,503
Median rent
$430/wk
Household income
$2,508/wk
Median age
39
Diamond Creek trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
Census 2011 → 2016 → 2021
+9% over 10 years
Population
12,503
was 11,733 in 2016
+770 · +6.6%
Median rent
$430/wk
was $370/wk in 2016
+$60 · +16.2%
Household income
$2,508/wk
was $2,089/wk in 2016
+$419 · +20.1%
Median age
39
was 38 in 2016
+1 · +2.6%
Dig deeper: Diamond Creek population growth · Diamond Creek then and now
Diamond Creek vs nearby & Greater Melbourne
Median Census 2021 figures for Diamond Creek, nearby suburbs (8), and the Melbourne metro median (suburbs with 1,000+ people).
Rent
+10.1% vs area
- Diamond Creek$430/wk
- Nearby$398.5/wk
- Melbourne$390.5/wk
Household income
+29.5% vs area
- Diamond Creek$2,508/wk
- Nearby$2,072/wk
- Melbourne$1,936.5/wk
Median age
0% vs area
- Diamond Creek39
- Nearby41.5
- Melbourne39
Personal income
+16.5% vs area
- Diamond Creek$983/wk
- Nearby$905.5/wk
- Melbourne$843.5/wk
Nearby uses the same postcode first, then larger suburbs in VIC. See Melbourne rankings.
Socio-economic profile
How Diamond Creek compares to other Australian suburbs on income, education and occupation — from official ABS SEIFA 2021 data.
Diamond Creek ranks among Australia's most advantaged suburbs. It shows strong access to economic resources and high education and occupation levels.
Relative disadvantage (IRSD)
Decile 101,085.4
Lower score / decile = more relative disadvantage
Advantage & disadvantage (IRSAD)
Decile 101,072
Higher score / decile = more relative advantage
Economic resources (IER)
Decile 101,104.2
Access to economic resources (income, housing)
Education & occupation (IEO)
Decile 91,048.5
Education and occupational skill levels
Source: ABS SEIFA 2021. See methodology.
Diamond Creek on the map
OpenStreetMap outline for Diamond Creek, VIC.
Map data © OpenStreetMap contributors. Boundary matching is approximate.
Diamond Creek people
- Population
- 12,503
- Median age
- 39
- Born overseas
- 14.6%
- Average household size
- 2.9
Total usual residents (Census 2021)
Median age of residents in years
Percentage born outside Australia
Average number of people per household
Diamond Creek income
- Median household income
- $2,508/wk
- Median personal income
- $983/wk
Median total weekly household income
Median total weekly personal income
Diamond Creek housing
- Median rent
- $430/wk
- Median mortgage repayment
- $2,167/mo
- Separate houses
- 91.4%
- Flats & apartments
- 0.1%
- Owned outright
- 34.3%
- Mortgaged
- 51.4%
- Rented
- 9.7%
- Unoccupied dwellings
- 3.1%
Median weekly rent for rented dwellings
Median monthly mortgage repayment
Percentage of dwellings that are separate houses
Percentage of dwellings that are flats or apartments
Percentage of dwellings owned without a mortgage
Percentage of dwellings with a mortgage
Percentage of dwellings rented
Percentage of private dwellings unoccupied on Census night
Diamond Creek work
- Employment to population
- 70%
- Unemployment rate
- 3.4%
- Year 12 or above
- 64.7%
Employed persons as a percentage of population aged 15+
Unemployed persons as a percentage of the labour force
Percentage with Year 12 or equivalent as highest school level
Nearby suburb profiles (near 3089)
Compare Diamond Creek with nearby suburbs
Diamond Creek in numbers
Diamond Creek had 12,503 residents at the 2021 Census, making it the 161st most populous suburb or locality in VIC out of 2,835. The median age is 39, 5% below the typical VIC suburb. The average household has 2.9 people. 14.6% of residents were born overseas.
Among occupied homes, 34.3% own their home outright, 51.4% are paying a mortgage, 9.7% rent. Separate houses make up 91.4% of dwellings, with 0.1% in flats or apartments. Median rent was $430/wk, 23% above the typical VIC suburb.
Median household income was $2,508/wk, 41% above the typical VIC suburb. The unemployment rate on Census night was 3.4%. 64.7% of adults had completed Year 12 or above. On the ABS SEIFA index of relative socio-economic disadvantage it sits in decile 10 nationally (1 is most disadvantaged, 10 least).
Between the 2016 and 2021 Censuses the population grew 6.6% (from 11,733 to 12,503). Median rent moved from $370/wk to $430/wk (+16.2%).
Diamond Creek suburb FAQs
- What is the median rent in Diamond Creek, VIC?
- The median weekly rent in Diamond Creek was $430/wk at the 2021 Census (ABS).
- How many people live in Diamond Creek, VIC?
- Diamond Creek had 12,503 residents at the 2021 Census, up 6.6% from 2016.
- What is the median household income in Diamond Creek?
- Median household income in Diamond Creek was $2,508/wk at the 2021 Census.
- Do most people rent or own in Diamond Creek?
- 9.7% of occupied homes in Diamond Creek were rented, 34.3% were owned outright and 51.4% were owned with a mortgage.
About this Diamond Creek suburb profile
Figures are from the ABS Census of Population and Housing 2021 (General Community Profile) for the Suburbs and Localities boundary matching Diamond Creek. Where shown, 2016 values come from the 2016 State Suburbs (SSC) profile, linked via ABS geographic correspondence — boundaries are not always identical. Medians may be suppressed for very small areas. This is not financial or relocation advice — use it alongside current market data.
Source: ABS Census 2021. Methodology · Richest suburbs in Melbourne