Thornbury

Population growth drivers in Thornbury are slightly above average based on AreaSearch's ranking of recent, and medium term trends

Thornbury's population is estimated at around 20,338 as of May 2026. This reflects an increase of 1,333 people since the 2021 Census, which reported a population of 19,005. The change was inferred from AreaSearch's estimation of the resident population at 20,322 following examination of ABS ERP data released in June 2025 and an additional 104 validated new addresses since the Census date. This level of population equates to a density ratio of 3,964 persons per square kilometer, placing Thornbury in the top 10% nationally assessed by AreaSearch. The suburb's 7.0% growth since census is within 1.0 percentage points of its SA3 area (8.0%), indicating competitive growth fundamentals. Overseas migration contributed approximately 81.0% of overall population gains during recent periods, driving primary growth in the area.

AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area as released in 2024 with a base year of 2022. For areas not covered by this data, AreaSearch utilises VIC State Government's Regional/LGA projections released in 2023 with adjustments made 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. Demographic trends forecast a significant population increase, with the suburb expected to expand by 7,631 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 37.4% in total over the 16 years.

Residential development activity is lower than average in Thornbury according to AreaSearch's national comparison of local real estate markets

Thornbury has seen approximately 56 dwelling approvals annually over the past five financial years ending FY25. This totals an estimated 281 homes. As of FY26, 57 approvals have been recorded. On average, each new dwelling adds about 0.7 residents per year.

The average construction cost is $717,000, indicating a focus on premium market properties. Commercial development approvals in FY26 reached $43.9 million. Compared to Greater Melbourne, Thornbury has 17.0% less building activity per person and ranks at the 35th percentile nationally. Recent construction consists of 40.0% standalone homes and 60.0% medium to high-density housing. With around 472 people per dwelling approval, Thornbury is a developed market.

By 2041, it's projected to grow by 7,615 residents. At current development rates, housing supply may not keep pace with population growth.

Thornbury has very high levels of nearby infrastructure activity, ranking in the top 20% nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified 34 projects likely to affect the region. Notable initiatives include 712-716 High Street Mixed-Use Development, Route 86 Tram Accessibility Upgrades, 680 High Street Residential Development, and 791-793 High Street Development. The following list details those expected 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 conditions in Thornbury remain below the national average according to AreaSearch analysis

Thornbury has an educated workforce with notable representation in the technology sector. Its unemployment rate was 7.2% as of December 2025. Employment growth over the past year was estimated at 3.7%.

Thornbury's residents have a higher employment participation rate than Greater Melbourne, with 75.8% compared to 69.9%. As of December 2025, 12,375 residents were employed, with an unemployment rate of 2.5% above Greater Melbourne's rate of 4.8%. A significant proportion, 48.2%, work from home based on Census responses. Dominant employment sectors include health care & social assistance, professional & technical, and education & training.

Thornbury specializes in professional & technical jobs with an employment share 1.4 times the regional level but has fewer construction jobs at 6.1% compared to Greater Melbourne's 9.7%. Over the year to December 2025, employment increased by 3.7%, and labour force grew by 4.5%, raising unemployment by 0.7 percentage points. In contrast, Greater Melbourne had employment growth of 2.4% and labour force growth of 2.8%, with a smaller unemployment rate rise of 0.3 percentage points. National employment forecasts from May-25 suggest national employment will expand by 6.6% over five years and 13.7% over ten years. Applying these projections to Thornbury's employment mix indicates local employment should increase by 7.1% over five years and 14.4% over ten years, though this is a simple extrapolation for illustrative purposes only.

The area exhibits notably strong income performance, ranking higher than 70% of areas assessed nationally through AreaSearch analysis

The suburb of Thornbury had an extremely high income level nationally according to the latest ATO data aggregated by AreaSearch for the financial year 2023. The median income among taxpayers in Thornbury was $62,613, while the average income stood at $81,157. These figures compared to those of Greater Melbourne, which were $57,688 and $75,164 respectively. Based on Wage Price Index growth of 9.62% since financial year 2023, current estimates would be approximately $68,636 for the median income and $88,964 for the average income as of March 2026. Census data revealed that individual earnings in Thornbury stood out at the 82nd percentile nationally, with a weekly earning of $1,042. The largest segment comprised 30.3% of residents earning between $1,500 and $2,999 weekly (6,162 residents), which mirrored the metropolitan region where 32.8% occupied this bracket. Economic strength was evident through 30.9% of households achieving high weekly earnings exceeding $3,000, supporting elevated consumer spending. High housing costs consumed 16.1% of income, though strong earnings still placed disposable income at the 63rd percentile nationally. The area's SEIFA income ranking placed it in the 8th decile.

Thornbury displays a diverse mix of dwelling types, with a higher proportion of rental properties than the broader region

Thornbury's dwellings, as per the latest Census, consisted of 51.4% houses and 48.6% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Melbourne metro's 67.9% houses and 32.1% other dwellings. Home ownership in Thornbury stood at 27.7%, with mortgaged dwellings at 29.5% and rented ones at 42.8%. The median monthly mortgage repayment was $2,200, surpassing Melbourne metro's average of $2,000. Weekly rent median in Thornbury was $391, slightly higher than Melbourne metro's $390. Nationally, Thornbury's mortgage repayments exceeded the Australian average of $1,863, and rents surpassed the national figure of $375.

Thornbury features high concentrations of group households and lone person households, with a lower-than-average median household size

Family households constitute 58.9% of all households, including 25.5% couples with children, 23.9% couples without children, and 8.4% single parent families. Non-family households comprise the remaining 41.1%, with lone person households at 33.6% and group households making up 7.5%. The median household size is 2.3 people, which is smaller than the Greater Melbourne average of 2.6.

Thornbury shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

Thornbury's residents aged 15+ have a higher university qualification rate of 51.2%, surpassing Australia's 30.4% and Victoria's 33.4%. This is led by bachelor degrees at 31.2%, followed by postgraduate qualifications (14.0%) and graduate diplomas (6.0%). Vocational pathways account for 20.4%, with advanced diplomas at 9.1% and certificates at 11.3%. Educational participation stands out, with 28.2% currently enrolled in formal education, including 8.9% in tertiary, 7.6% in primary, and 5.9% in secondary education.

Educational participation is notably high, with 28.2% of residents currently enrolled in formal education. This includes 8.9% in tertiary education, 7.6% in primary education, and 5.9% pursuing secondary education.

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

Thornbury has 85 active public transport stops serving a mix of lightrail and buses. These stops are covered by 14 routes that collectively facilitate 7,023 weekly passenger trips. Residents have excellent access to these stops, with an average distance of 176 meters to the nearest one. Most residents commute outward from this primarily residential area. Car remains the primary mode of transport at 67%, followed by train at 10% and cycling at 7%. Vehicle ownership averages 0.9 per dwelling, below the regional average.

According to the 2021 Census, a high proportion of residents, 48.2%, work from home, which may reflect COVID-19 conditions. Service frequency across all routes averages 1,003 trips per day, equating to approximately 82 weekly trips per individual stop.

Thornbury'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

Thornbury's health data shows positive outcomes. Mortality rates and health conditions align with national benchmarks.

Common health issues are seen across all ages. Private health cover is high at 59%, compared to Greater Melbourne's 56.7%. Mental health issues affect 11.7% of residents, while asthma impacts 8.3%. 68.5% report no medical ailments, compared to Greater Melbourne's 72.6%. Working-age population health outcomes are typical. Thornbury has 13.7% of residents aged 65 and over (2,786 people), lower than Greater Melbourne's 15.0%. National rankings align with the general population.

The level of cultural diversity witnessed in Thornbury was found to be above average when compared nationally for a number of language and cultural background related metrics

Thornbury's population comprises 27.4% overseas-born individuals and 26.0% who speak a language other than English at home, making it more culturally diverse than most local markets. Christianity is the dominant religion in Thornbury, with 37.0% of residents identifying as Christian. Notably, Judaism is overrepresented in Thornbury compared to Greater Melbourne, with 0.4% versus 1.0%.

The top three ancestry groups are English (21.0%), Australian (17.5%), and Irish (10.1%). Some ethnic groups show significant differences: Greek residents make up 7.7% of Thornbury's population compared to the regional average of 2.7%, Italian residents comprise 8.9% versus 5.2%, and Macedonian residents are at 1.1% against a regional average of 0.7%.

Thornbury's population is slightly younger than the national pattern

Thornbury has a median age of 37, matching Greater Melbourne's figure and closely resembling Australia's median age of 38. The 25-34 age group is strongly represented in Thornbury at 20.6%, higher than Greater Melbourne's percentage, while the 5-14 cohort is less prevalent at 9.0%. Nationally, the 25-34 age group comprises 14.6%, making Thornbury's figure significantly higher. Between 2021 and present, the 55 to 64 age group has increased from 9.8% to 10.6% of Thornbury's population. Conversely, the 45 to 54 cohort has decreased from 14.1% to 12.8%. By 2041, demographic projections indicate substantial shifts in Thornbury's age structure, with the 55-64 group expected to grow by 60%, adding 1,286 people and reaching a total of 3,442 from its current figure of 2,155.