Rockbank

Rockbank lies within the top 10% of areas nationally in terms of population growth performance according to AreaSearch analysis of short and medium-term trends

As of Feb 2026, the estimated population of the suburb of Rockbank is around 5,415. This figure reflects a significant increase from the 2021 Census result, which recorded a population of 2,583 people. The growth since the census period is inferred from AreaSearch's resident population estimate of 3,132, based on examination of the latest ERP data release by the ABS in June 2024 and an additional 673 validated new addresses since the Census date. This increase equates to a rise of 2,832 people (109.6%) from the 2021 Census figure. The population density ratio is 1,247 persons per square kilometer, which is notably higher than the average seen across national locations assessed by AreaSearch. Rockbank's growth rate exceeds both the national average of 9.9% and the state average since the 2021 census, positioning it as a significant growth leader in the region.

The primary driver for this population growth was interstate migration, contributing approximately 85.0% of overall population gains during recent periods. AreaSearch's projections for Rockbank are based on ABS/Geoscience Australia data released in 2024 with a base year of 2022 for each SA2 area. For areas not covered by this data, AreaSearch utilizes the VIC State Government's Regional/LGA projections from 2023, adjusted using a method of weighted aggregation of population growth from LGA to SA2 levels. Future projections indicate exceptional growth for Rockbank over the period up to 2041. Based on aggregated SA2-level projections, the suburb is expected to expand by 9,099 persons by this year, reflecting an overall gain of 152.8% in total population over the 17-year span.

The level of residential development activity in Rockbank was found to be higher than 90% of real estate markets across the country

AreaSearch analysis of ABS building approval numbers shows Rockbank recorded around 154 residential properties granted approval each year over the past five financial years, totalling an estimated 771 homes. So far in FY-26, 96 approvals have been recorded. On average, 3.9 new residents per year were associated with every home built between FY-21 and FY-25. This has led to demand significantly exceeding supply, typically resulting in price growth and increased buyer competition.

New properties are constructed at an average expected cost of $373,000. In the current financial year, $1.8 million in commercial approvals have been registered, indicating the area's residential nature. Compared to Greater Melbourne, Rockbank records 171.0% more development activity per person, suggesting ample choice for buyers, although construction activity has recently eased. This is well above national averages, reflecting strong developer confidence in the area. New building activity comprises 90.0% standalone homes and 10.0% medium and high-density housing, maintaining Rockbank's suburban identity with a concentration of family homes suited to buyers seeking space.

The location has approximately 38 people per dwelling approval, indicating an expanding market. Population forecasts estimate Rockbank will gain 8,275 residents by 2041 (latest AreaSearch quarterly estimate). At current development rates, housing supply may struggle to match population growth, potentially heightening buyer competition and supporting price increases.

Rockbank has strong levels of nearby infrastructure activity, ranking in the top 30% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified six projects likely to impact the area. Notable projects include Melton Line Upgrade, Woodlea Estate, Woodlea Estate, and Willow Springs. The following details those most relevant:.

Professional plan users can use the search below to filter and access additional projects.

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The employment landscape in Rockbank shows performance that lags behind national averages across key labour market indicators

Rockbank has an educated workforce with diverse sector representation. The unemployment rate was 5.3% as of September 2025. Employment growth over the past year was estimated at 5.8%.

This is based on AreaSearch aggregation of statistical area data. As of September 2025, 2682 residents were employed while the unemployment rate was 0.6% higher than Greater Melbourne's rate of 4.7%. Workforce participation in Rockbank was 119.9%, significantly higher than Greater Melbourne's 71.0%. According to Census responses, 21.8% of residents worked from home.

The dominant employment sectors were transport, postal & warehousing, health care & social assistance, and construction. Rockbank had a particular specialization in transport, postal & warehousing with an employment share 2.8 times the regional level. However, education & training had limited presence at 5.1% compared to the regional average of 9.2%. Employment opportunities locally appeared limited as indicated by the count of Census working population vs resident population. Between September 2024 and September 2025, employment levels increased by 5.8%, labour force by 7.4%, resulting in a rise in unemployment by 1.4 percentage points. In comparison, Greater Melbourne recorded employment growth of 3.0% and unemployment rose by 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 suggest potential future demand within Rockbank. National employment is forecast to expand by 6.6% over five years and 13.7% over ten years. Applying these projections to Rockbank's employment mix, local employment should increase by 6.5% over five years and 13.3% over ten years. These projections are simple extrapolations for illustrative purposes and do not account for localized population projections.

Income levels sit below national averages according to AreaSearch assessment

AreaSearch's latest postcode level ATO data for financial year 2023 shows Rockbank had a median income among taxpayers of $51,444 and an average of $58,552. This is lower than the national average, with Greater Melbourne having a median of $57,688 and an average of $75,164. Based on Wage Price Index growth of 8.25% since financial year 2023, estimated incomes for September 2025 would be approximately $55,688 (median) and $63,383 (average). Census data indicates Rockbank's household, family, and personal incomes are around the 59th percentile nationally. Income analysis reveals 43.2% of Rockbank's population (2,339 individuals) fall within the $1,500 - $2,999 income range, similar to the surrounding region where 32.8% occupy this range. Housing affordability pressures are severe in Rockbank, with only 81.4% of income remaining, ranking at the 49th percentile. The area's SEIFA income ranking places it in the 5th decile.

Rockbank is characterized by a predominantly suburban housing profile, with a higher proportion of rental properties than the broader region

Rockbank's dwelling structures, as per the latest Census, were 87.7% houses and 12.3% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Melbourne metro's 67.9% houses and 32.1% other dwellings. Home ownership in Rockbank was at 15.7%, with mortgaged dwellings at 51.6% and rented ones at 32.7%. The median monthly mortgage repayment was $1,800, below Melbourne metro's average of $2,000. Median weekly rent in Rockbank was $360, compared to Melbourne metro's $390. Nationally, Rockbank's mortgage repayments were lower than the Australian average of $1,863, and rents were less than the national figure of $375.

Rockbank has a typical household mix, with a fairly typical median household size

Family households constitute 71.3% of all households, including 37.1% couples with children, 22.6% couples without children, and 9.5% single parent families. Non-family households account for the remaining 28.7%, with lone person households making up 25.8% and group households comprising 3.2%. The median household size is 2.6 people, which aligns with the Greater Melbourne average.

The educational profile of Rockbank exceeds national averages, with above-average qualification levels and academic performance metrics

The area's university qualification rate is 31.3%, exceeding the SA3 average of 24.3%. Bachelor degrees are most common at 19.1%, followed by postgraduate qualifications (10.0%) and graduate diplomas (2.2%). Vocational credentials are held by 34.3% of residents aged 15+, with advanced diplomas at 15.2% and certificates at 19.1%.

Educational participation is high, with 31.7% currently enrolled in formal education. This includes 10.7% in primary education, 5.9% in secondary education, and 4.8% pursuing tertiary education.

Transport servicing is moderate compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

Rockbank has eight active public transport stops, all of which are bus stops. These stops are served by three different routes that together facilitate 783 weekly passenger trips. Transport accessibility in Rockbank is limited, with residents typically located 615 meters from the nearest transport stop. Most residents commute outward due to its predominantly residential nature. Cars remain the dominant mode of transportation at 87%, while 8% use trains for their commutes. On average, there are 1.4 vehicles per dwelling in Rockbank.

According to the 2021 Census, 21.8% of residents work from home, which may be influenced by COVID-19 conditions. The service frequency averages 111 trips per day across all routes, equating to approximately 97 weekly trips per individual stop.

Rockbank's residents are healthier than average in comparison to broader Australia with a fairly standard level of common health conditions seen across both young and old age cohorts

Rockbank's health data shows positive outcomes, aligning with national benchmarks for mortality rates and health conditions. Common health issues are seen across all age groups, with asthma and mental health problems being most prevalent at 6.8% and 5.9% respectively. About 79.9% of residents report no medical ailments, compared to 72.6% in Greater Melbourne.

Private health cover is relatively low at approximately 50%, compared to 56.7% in Greater Melbourne and a national average of 55.7%. The under-65 population has better-than-average health outcomes. Rockbank has 6.1% residents aged 65 and over (330 people), lower than Greater Melbourne's 15.1%. Senior health outcomes are above average, in line with national rankings for the general population.

Rockbank is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Rockbank has a high level of cultural diversity, with 47.9% of its population born overseas and 54.8% speaking a language other than English at home. Christianity is the predominant religion in Rockbank, comprising 41.1% of people. Notably, the 'Other' religion category makes up 14.5%, significantly higher than Greater Melbourne's average of 2.3%.

In terms of ancestry, the top three groups are Other (28.7%), Indian (13.5%), and Australian (13.0%). The 'Other' group is substantially higher than the regional average of 14.6%, while Indian ancestry is also significantly higher at 13.5% compared to the regional average of 4.2%. Conversely, Australian ancestry is notably lower at 13.0% versus the regional average of 18.4%. There are also notable divergences in certain ethnic groups: Maltese (3.9%), Croatian (1.4%), and Samoan (1.3%) are overrepresented compared to regional averages of 1.1%, 0.7%, and 0.3% respectively.

Rockbank hosts a very young demographic, ranking in the bottom 10% of areas nationwide

Rockbank's median age is 31 years, which is lower than the Greater Melbourne average of 37 and significantly below the Australian median of 38. Compared to Greater Melbourne, Rockbank has a higher proportion of residents aged 35-44 (21.2%), but fewer residents aged 75-84 (1.2%). This concentration of 35-44 year-olds is notably higher than the national average of 14.3%. Between 2021 and present, the proportion of residents aged 5 to 14 has increased from 11.9% to 16.6%, while the 35 to 44 age group has grown from 17.1% to 21.2%. Conversely, the 25 to 34 age group has decreased from 26.1% to 19.3%, and the 0 to 4 age group has dropped from 10.4% to 8.9%. By 2041, demographic modeling projects significant changes in Rockbank's age profile, with the 45 to 54 age cohort expected to expand substantially by 1,510 people (251%), growing from 601 to 2,112 residents.