Rockbank
A 559% population surge over 10 years marks Rockbank as one of Melbourne's fastest-expanding greenfield corridors. Sitting in postcode 3335, the suburb's 2,583 residents recorded in the Census are already a fraction of a broader growth area exceeding 35,000 people by 2025. The median age of 31 runs 9 years below the national figure, driven by young families who form 1,109 couples-with-children households compared to just 448 couples without. Nearly half of residents (47.9%) were born overseas, 26.3 percentage points above the national rate. SEIFA decile 7 on both IRSD and IRSAD indicates a modestly above-average socioeconomic profile, while the IER decile of 9 reflects a suburb with relatively strong economic resources given most households are actively building assets.
Population
2,583
Median Age
31.0
Household IncomeiMedian weekly household income (ABS Census)
$1,781/wk
DAs (12 months)iDevelopment Applications lodged in the past year
22
Median House
$638K
Apr-Jun 2024
The median house price of $637,500 in Apr-Jun 2024 has climbed 106.3% since 2013's $309,000 entry point, a 5.3% compound annual rate over 14 years. Prices peaked at $675,000 in Apr-Jun 2023 and have since dipped 5.6% from that high, which positions buyers slightly off the peak. Compared to many inner-Melbourne markets, mortgage-to-income at 23.3% is comfortably below the 30% stress threshold, making repayments manageable for a suburb where 52.2% of households carry a mortgage. The housing stock is almost exclusively detached houses at 87.7%, and four-plus bedroom homes dominate at 49.5%, reflecting the large-family focus of a new estate. Monthly mortgage repayments average $1,800, lower than most middle-ring suburbs despite the median price.
For Buyers
The median house price of $637,500 in Apr-Jun 2024 has climbed 106.3% since 2013's $309,000 entry point, a 5.3% compound annual rate over 14 years. Prices peaked at $675,000 in Apr-Jun 2023 and have since dipped 5.6% from that high, which positions buyers slightly off the peak. Compared to many inner-Melbourne markets, mortgage-to-income at 23.3% is comfortably below the 30% stress threshold, making repayments manageable for a suburb where 52.2% of households carry a mortgage. The housing stock is almost exclusively detached houses at 87.7%, and four-plus bedroom homes dominate at 49.5%, reflecting the large-family focus of a new estate. Monthly mortgage repayments average $1,800, lower than most middle-ring suburbs despite the median price.
For Investors
Rental demand is moderate but real: 32.7% of dwellings are rented at a median $360 per week, producing a gross yield near 2.9% against the $637,500 median, below typical landlord targets. The 5.6% vacancy rate is elevated compared to the Melbourne metropolitan average, suggesting supply from new completions is absorbing demand. The stronger investor signal is population momentum: the surrounding growth area grew from 27,141 to 35,856 between 2023 and 2025, adding roughly 4,350 net internal migrants annually. With 19 development applications lodged in the past 12 months and the medium forecast projecting the broader area to exceed 41,000 by 2031, land and house-and-land packages continue to attract pipeline interest. Rent grew 122.2% over the decade, far above income growth of 64.3%.
Development Activity
Total DAs
38
Last 12 Months
22
YoY ChangeiYear-over-year change in DA lodgements
+450.0%
Avg DA CostiAverage estimated cost per DA in the past year
N/A
Monthly DA Lodgements
DA Categories
Schools in Rockbank iICSEA: school advantage index. 1000 = national avg, higher = more advantaged
Rockbank Primary School
Prep-6 · 615 students
Demographics
At a median age of 31, Rockbank's resident base skews 9 years younger than the national median, because the suburb's growth stage attracts first- and second-home buyers in their late 20s and 30s. Overseas-born residents at 47.9% sit 26.3 percentage points above the national figure. Indian (398 residents) and Maltese (116) are the two largest specific ancestry groups after those categorised as Other (846). Punjabi is spoken by 213 residents, making it the dominant non-English language, followed by Hindi (48) and Urdu (26), which reflects South Asian migration patterns common across Melton-area estates. University qualifications reach 37.2%, which is 7.1 points above the national rate, signalling a skilled migrant and professional-family cohort rather than a low-education profile despite the greenfield setting.
Age Distribution
Bedrooms
Dwelling Structure
87.7%
Houses
1.1%
Townhouse
N/A
Apartment
Tenure
Detached houses account for 87.7% of dwellings, the clearest signal that this is a classic new-estate suburb designed for families rather than renters or downsizers. Four-plus bedroom homes at 49.5% and three-bedroom at 36.5% together cover 86% of stock, with two-bedroom homes at just 2.9%. Tenure splits into 52.2% on a mortgage, 32.7% renting and 15.2% owning outright; the low outright-owner share compared to established suburbs reflects how recently most homes were built. The price history shows a steady rise from $280,000 (2014 trough) to a $675,000 peak (Apr-Jun 2023) before a 5.6% correction to $637,500. That still represents a 106.3% gain since 2013 at a 5.3% CAGR, well ahead of inflation. Average household size is 2.6, matching the national figure.
Median House Price Trend
Source: State Valuer-General
Mortgage / mo
$1,800
Rent / wk
$360
HH Size
2.6
Personal Income / wk
$896
Vacancy Ratei% of dwellings unoccupied on Census night (ABS 2021)
5.6%
Unoccupied
54
Rent / IncomeiMedian rent as % of household income. Over 30% = housing stress
20.2%
Mortgage / IncomeiMedian mortgage as % of household income. Over 30% = housing stress
23.3%
Community Profile
Languages Spoken at Home
Ancestry
Household Composition
22.1%
Couples, no children
2,028
Total families
Economy & Employment
Healthcare leads local employment at 17.6% (154 workers), followed by Transport at 11.7%, Construction at 10.6% and Professional/Tech at 10.0%. The occupation mix is varied: Machinery and Drivers (218) edge out Professionals (215) as the largest single group, which distinguishes Rockbank from knowledge-worker-dominant suburbs and reflects the Melton corridor's logistics and trade base. The unemployment rate of 6.3% is above the state average, a common pattern in fast-growing outer-suburban areas where workforce participation (64.5%) is compressed by the number of full-time parents (444 not in the labour force). Weekly household income of $1,781 places residents at the 62.8th income percentile nationally. SEIFA decile 7 on IEO (education and occupation index) confirms a competent but not elite employment profile.
Unemployment
5.4%
Labour Force
15,898
Unemployed
851
Quarterly Trend
Source: SALM Dec-25
Socio-Economic Indexes (SEIFA)iABS index ranking suburbs from 1 (most disadvantaged) to 10 (most advantaged)
Full-time
66.7%
Part-time
27.0%
Participation
64.5%
Employed
1,211
Occupations
Top Industries
University
37.2%
Postgraduate
12.7%
Born Overseas
47.9%
Dwellings
899
Transport to Work
Car dependency is near-total: 88.2% of residents drive to work and only 5.4% use public transport, compared to higher transit shares seen in inner and middle-ring Melbourne suburbs. Walking and cycling account for 0.6% of commutes, reflecting the road-oriented estate design. No schools are recorded within the Rockbank boundary in this dataset, so families access education in neighbouring parts of the Melton growth area. The crime rate of 113.4 incidents per 1,000 residents is elevated, with property and deception offences (191 incidents) the dominant category, typical of areas with high renter turnover and lower community stability during the early estate phase. SEIFA IRSAD decile 7 indicates relative advantage above the state median, and housing stress remains low at a rent-to-income ratio of 20.2% and mortgage-to-income of 23.3%.
Drive
88.2%
Public Transport
5.4%
Walk / Cycle
0.6%
Work from Home
N/A
Population Forecast
+5.75%/yr
(+2,060 people/yr)
High GrowthRockbank's growth is structural, not cyclical. The 10-year population change of 559.1% classifies it as high-growth and reflects master-planned estate releases across the Melton LGA rather than gentrification, with a gentrification score of 0. The young-share delta rose 14.6 points over the decade while the senior share fell 4.3 points, showing the suburb is attracting new-family cohorts rather than aging in place. Internal migration drives supply at an average net 3,638 arrivals per year, far outstripping the 146 net overseas migrants annually. Medium projections see the broader area reaching 41,628 residents by 2031 at a 5.75% annual rate, adding about 2,060 people per year. Affordability worsened from 38.5% in 2011 to 42.3% in 2021, consistent with state-wide trends across greenfield corridors.
Historical + Forecast
Hamilton-Perry + Holt smoothing on ERP 2001-2025
Age Cohort Forecast
Primary Driver
Internal Migration
Net Overseas / yr
+146
Net Internal / yr
+3,638
Gentrification Signal
New development
Safety & Crime
Total Offences
293
Year ending June 2024
Rate per 1,000 People
113.4
Offence Categories
Source: Crime Statistics Agency Victoria / SA Police
National Ranking iPercentile rank among ~15,000 AU suburbs. 90% = higher than 90% of suburbs
How Rockbank compares to ~15,000 Australian suburbs
Frequently Asked Questions
Is Rockbank a good suburb to live in?
Rockbank suits young families seeking a new detached house at a price below inner-Melbourne markets. The $637,500 median combined with a mortgage-to-income ratio of 23.3% keeps repayments manageable. Infrastructure is still maturing, with car dependency at 88.2% and no schools recorded inside the suburb boundary, so proximity to services in Melton is important.
What is the median house price in Rockbank?
The median house price is $637,500, recorded in Apr-Jun 2024. Prices peaked at $675,000 in Apr-Jun 2023, meaning current buyers are entering about 5.6% below the peak. The long-term CAGR is 5.3% over 14 years, with the earliest comparable sale at $309,000 in 2013, a 106.3% gain to date.
What schools are in Rockbank?
No schools are recorded inside the Rockbank suburb boundary in this dataset. Families in the area access primary and secondary education in adjacent Melton growth corridor suburbs. The local population is educated at above-average rates, with 37.2% holding university qualifications, which is 7.1 percentage points higher than the national figure.
Is Rockbank safe?
The recorded crime rate is 113.4 incidents per 1,000 residents, with 293 total offences. Property and deception offences account for 191 of these, the dominant category. This rate is higher than more established suburbs, which is consistent with the early estate phase where community networks are still forming and renter turnover runs at 66.1%.
Is Rockbank good for property investment?
The gross yield from $360 weekly rent against a $637,500 median is near 2.9%, below typical investor targets. However, rent grew 122.2% over the decade versus a 64.3% real income gain. Population growth in the broader area is running at 5.75% annually, with a net internal migration of 3,638 per year supporting long-term demand.
How is Rockbank's population changing?
The suburb and surrounding growth area expanded 559.1% over 10 years, one of the highest rates in Victoria. The broader area grew from 27,141 in 2023 to 35,856 by 2025. Medium forecasts project growth to 41,628 by 2031, adding about 2,060 residents per year, driven mainly by internal migration rather than overseas arrivals.
What languages are spoken in Rockbank?
About 47.9% of residents were born overseas, which is 26.3 percentage points above the national rate. Punjabi is spoken by 213 residents, making it the most common non-English language, followed by Hindi (48) and Urdu (26). Indian (398 residents) and Maltese (116) are among the largest specific ancestry groups, reflecting South Asian and Southern European migration.
How to read these comparisons
Phrases like "above the national average" reference the unweighted median across Australian suburbs with more than 1,000 residents, not population-weighted national figures. Suburb-level medians are more useful for ranking suburbs against each other; ABS census headlines are population-weighted (so dominated by Sydney and Melbourne) and can read very differently.
Current baseline (refreshed 2026-05-10): median age 40, university-educated 30.1%, born overseas 21.6%, average household size 2.5 people.
Data sources: ABS 2021 Census (demographics, income, tenure), state Valuer-General (house prices), Department of Jobs SALM (unemployment), ACARA (school ICSEA), state Crime Statistics agencies (offences), council DA portals (development applications). Population forecasts use a Hamilton-Perry cohort model calibrated to ABS ERP.
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