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 May 2026, the estimated population of Rockbank is around 3,688 people. This reflects an increase of 1,105 individuals since the 2021 Census, which reported a population of 2,583 people. The change was inferred from AreaSearch's estimation of the resident population at 3,045 following examination of ABS' latest ERP data release in June 2025 and an additional 723 validated new addresses since the Census date. This results in a population density ratio of approximately 849 persons per square kilometer, aligning with averages seen across locations assessed by AreaSearch. Rockbank's growth rate of 42.8% since the 2021 census exceeded both the state average (9.3%) and national average. Interstate migration contributed about 85.0% of overall population gains during recent periods, although all drivers including natural growth and overseas migration were positive factors.

AreaSearch is using ABS/Geoscience Australia projections for each SA2 area released in 2024 with a base year of 2022. For areas not covered by this data, AreaSearch utilises the VIC State Government's Regional/LGA projections released in 2023, adjusting employing a method of weighted aggregation of population growth from LGA to SA2 levels. Growth rates by age group are applied across all areas for years 2032 to 2041. Future trends predict exceptional growth for Rockbank, placing it in the top 10 percent of statistical areas nationally over the period. The suburb is expected to expand by approximately 5,906 persons to reach a total population of around 9,674 by 2041 based on aggregated SA2-level projections, reflecting a gain of about 139.0% in total over the 16 years.

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, allocated from statistical area data, shows Rockbank recorded around 157 residential properties granted approval each year over the past 5 financial years ending FY25. This totals an estimated 785 homes. By May 2026143 approvals have been recorded. Over these years, on average, 1.6 new residents were associated with each dwelling constructed. However, this has decreased to 0.8 people per dwelling over the past 2 financial years.

New homes are being built at an average expected construction cost of $373,000. In FY26, $1.8 million in commercial approvals have been registered, indicating the area's residential nature. Compared to Greater Melbourne, Rockbank records 159.0% more development activity per person as of May 2026. This is well above average nationally, reflecting strong developer confidence in the area. New building activity shows 89.0% standalone homes and 11.0% medium and high-density housing, preserving the area's low density nature with an emphasis on detached housing attracting space-seeking buyers.

The location has approximately 25 people per dwelling approval as of May 2026. Population forecasts indicate Rockbank will gain 5,127 residents through to 2041 based on the latest AreaSearch quarterly estimate. Building activity is keeping pace with growth projections, though buyers may experience heightened competition as the population grows.

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 three projects expected to impact the area: Melton Line Upgrade, Willow Springs, Thornhill Park, Opalia Estate, Weir Views. The following details projects likely to be most relevant.

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

Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

Employment performance in Rockbank has been below expectations when compared to most other areas nationally

Rockbank's workforce is well-educated with diverse sector representation and an unemployment rate of 5.7%, as aggregated by AreaSearch from statistical area data. As of December 2025, 1,552 residents are employed, with an unemployment rate at 0.9% above Greater Melbourne's rate of 4.8%. Workforce participation is 74.2%, slightly higher than Greater Melbourne's 69.9%.

According to Census responses, 21.8% of residents work from home, potentially influenced by Covid-19 lockdowns. Dominant employment sectors include transport, postal & warehousing, health care & social assistance, and construction. Rockbank specializes in transport, postal & warehousing with an employment share 2.8 times the regional level, but education & training has limited presence at 5.1% compared to 9.2% regionally. The area offers limited local employment opportunities as indicated by Census working population vs resident population counts.

Between December 2024 and December 2025, Rockbank's labour force decreased by 9.6%, with employment down by 11.2%, leading to a 1.7 percentage point unemployment rate increase. In contrast, Greater Melbourne saw employment grow by 2.4% and labour force expand by 2.8%, with unemployment rising by 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 project overall employment growth of 6.6% over five years and 13.7% over ten years, but growth rates vary significantly between sectors. Applying these projections to Rockbank's employment mix suggests local employment should increase by 6.5% over five years and 13.3% over ten years, though this is a simple extrapolation for illustrative purposes only and does not consider 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's median income among taxpayers is $51,444, with 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 since financial year 2023, current estimates for Rockbank are approximately $56,393 (median) and $64,185 (average) as of March 2026. Census data indicates incomes in Rockbank cluster around the 59th percentile nationally. Income analysis reveals 43.2% of the population falls within the $1,500 - $2,999 income range, reflecting patterns seen in the surrounding region where 32.8% similarly occupy this range. Housing affordability pressures are severe, with only 81.4% of income remaining after housing costs, ranking at the 49th percentile nationally. 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 housing structure, as per the latest Census, consisted of 87.7% houses and 12.3% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Melbourne metro's figures of 67.9% houses and 32.1% other dwellings. Home ownership in Rockbank stood 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 account for 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 constitute the remaining 28.7%, with lone person households at 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% among residents aged 15+, surpassing the SA3 area 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 serving a mix of bus routes. These stops are covered by three different routes that together facilitate 783 weekly passenger trips. Transport accessibility in the area is limited, with residents typically residing 615 meters away from the nearest stop. As a predominantly residential zone, most commuters travel outwards. Cars are the primary mode of transport, used by 87% of residents, while 8% opt for trains. On average, there are 1.4 vehicles per dwelling.

According to the 2021 Census, 21.8% of residents work from home, which may be influenced by COVID-19 conditions. The service frequency across all routes averages 111 trips per day, 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. Private health cover is relatively low at 50% (1,845 people), compared to Greater Melbourne's 56.7%.

Nationally, it's 55.7%. Asthma and mental health issues are most common, affecting 6.8% and 5.9%, respectively, while 79.9% report no medical ailments, higher than Greater Melbourne's 72.6%. Under-65s have better-than-average health outcomes. Only 6.6% of residents are aged 65 and over (243 people), lower than Greater Melbourne's 15.0%. Senior health outcomes are above average, matching national rankings.

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's population shows high cultural diversity, with 47.9% born overseas and 54.8% speaking a language other than English at home. The predominant religion is Christianity, comprising 41.1%. Notably, the 'Other' category constitutes 14.5%, significantly higher than Greater Melbourne's average of 2.3%.

In terms of ancestry, 'Other' leads with 28.7%, substantially higher than the regional average of 14.6%. Indian ancestry follows at 13.5%, above the regional average of 4.2%. Australian ancestry is present at 13.0%, notably lower than the regional average of 18.4%. Other ethnic groups with notable representation include Maltese at 3.9% (regional: 1.1%), Croatian at 1.4% (regional: 0.7%), and Samoan at 1.3% (regional: 0.3%).

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

Rockbank has a median age of 33, which is younger than Greater Melbourne's figure of 37 and Australia's national average of 38 years. Compared to Greater Melbourne, Rockbank has a higher proportion of residents aged 5-14 (19.6%) but fewer residents aged 75-84 (1.4%). This concentration of 5-14 year-olds is significantly higher than the national figure of 12.0%. Between the 2021 Census and the present, Rockbank's residents have aged on average by 1.9 years, with the median age rising from 31 to 33. Specifically, the proportion of the population in the 5-14 age group has increased from 11.9% to 19.6%, while the 45-54 cohort has risen from 10.0% to 15.6%. Conversely, the proportion of residents aged 25-34 has decreased from 26.1% to 13.6%, and the 0-4 age group has dropped from 10.4% to 7.5%. Demographic projections suggest that Rockbank's age profile will change significantly by 2041, with the 45-54 age cohort expected to grow exceptionally, increasing from 575 to 1,917 people (a rise of 1,341 individuals or 233%).