Diamond Creek

Population growth drivers in Diamond Creek are strong compared to national averages based on AreaSearch's ranking of recent, and medium to long-term trends

As of November 2025, Diamond Creek's population is estimated at approximately 13,003 people. This figure reflects an increase of 500 individuals since the 2021 Census, which reported a population of 12,503. The growth was inferred from AreaSearch's estimation of the resident population at 12,807 in June 2024, based on ABS ERP data and validated new addresses since the Census date. This results in a population density ratio of 745 persons per square kilometer, comparable to averages seen across other areas assessed by AreaSearch. Diamond Creek's growth rate of 4.0% since the 2021 Census exceeded the SA3 area's growth rate of 2.3%, positioning it as a growth leader in the region. Natural population growth contributed approximately 62.0% of overall population gains during recent periods.

AreaSearch adopts 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 from 2023, adjusted employing a method of weighted aggregation of population growth from LGA to SA2 levels. Demographic trends project an above median population growth for Australian statistical areas. By 2041, Diamond Creek is expected to expand by 2,534 persons, reflecting a total increase of 17.7% over the 17-year period.

AreaSearch analysis of residential development drivers sees Diamond Creek recording a relatively average level of approval activity when compared to local markets analysed countrywide

Diamond Creek has seen approximately 61 residential properties granted approval each year over the past five financial years, totalling an estimated 306 homes. As of FY26, 7 approvals have been recorded. The average population increase per dwelling built in Diamond Creek between FY21 and FY25 is 0.8 people per year. New construction has matched or outpaced demand, offering buyers more options while enabling population growth that could exceed current expectations.

The average value of new properties constructed is $714,000, indicating a focus on the premium market segment with higher-end properties. In FY26, there have been $11.5 million in commercial approvals, showing steady commercial investment activity. Compared to Greater Melbourne, Diamond Creek has 102.0% higher new home approvals per person. Building activity is predominantly detached houses at 81.0%, with townhouses or apartments making up the remaining 19.0%.

This maintains the area's traditional low density character focused on family homes. The location has approximately 329 people per dwelling approval, indicating a low density market. According to AreaSearch's latest quarterly estimate, Diamond Creek is projected to add 2,306 residents by 2041. Based on current development patterns, new housing supply should readily meet demand, offering good conditions for buyers and potentially facilitating population growth beyond current projections.

Diamond Creek has very high levels of nearby infrastructure activity, ranking in the top 10% nationally

Eleven infrastructure projects were identified by AreaSearch as potentially impacting the area. Among them are key initiatives such as the Diamond Creek Community Infrastructure Master Plan, Eltham Major Activity Centre project, Nillumbik Waste Management Facility upgrade (scheduled for completion in 2023), and the Diamond Creek Outdoor Pool Upgrade set to begin in late 2021. The following list outlines those projects likely to have significant relevance.

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Employment conditions in Diamond Creek rank among the top 10% of areas assessed nationally

Diamond Creek's workforce is highly educated with prominent representation in essential services sectors. The unemployment rate was 1.5% as of June 2025, with an estimated employment growth of 1.3% over the past year, according to AreaSearch data aggregation.

As of this date, 7,877 residents were employed while the unemployment rate was 3.1% below Greater Melbourne's rate of 4.6%. Workforce participation in Diamond Creek was 72.5%, exceeding Greater Melbourne's 64.1%. Key employment sectors among residents include construction, health care & social assistance, and education & training. Notably, construction is particularly strong with an employment share 1.6 times the regional level.

Conversely, professional & technical services are under-represented at 7.4%, compared to Greater Melbourne's 10.1%. The area appears to offer limited local employment opportunities, indicated by the difference between Census working population and resident population counts. Between June 2024 and June 2025, employment increased by 1.3% while labour force grew by 1.4%, raising the unemployment rate by 0.1 percentage points. In contrast, Greater Melbourne saw employment growth of 3.5% and labour force growth of 4.0%, with a 0.5 percentage point rise in unemployment. National employment forecasts from Jobs and Skills Australia (Sep-22) project national employment growth at 6.6% over five years and 13.7% over ten years, but industry-specific projections suggest Diamond Creek's employment should increase by 6.7% over five years and 13.7% over ten years, based on a simple weighting extrapolation for illustrative purposes.

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

According to AreaSearch's aggregation of ATO data released for financial year 2022, Diamond Creek had a median taxpayer income of $60,624 and an average income of $76,409. These figures are high compared to national averages of $54,892 and $73,761 in Greater Melbourne. Based on Wage Price Index growth of 12.16% since financial year 2022, estimated incomes as of September 2025 would be approximately $67,996 (median) and $85,700 (average). According to the 2021 Census, Diamond Creek's household, family, and personal incomes rank highly nationally, between the 77th and 90th percentiles. Income distribution shows that 33.2% of locals earn between $1,500 and $2,999 weekly, consistent with metropolitan trends at 32.8%. Higher earners make up a substantial presence, with 39.2% exceeding $3,000 weekly. After housing costs, residents retain 87.5% of their income, indicating strong purchasing power. The area's SEIFA income ranking places it in the 8th decile.

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

Diamond Creek's dwelling structure, as per the latest Census, consisted of 94.4% houses and 5.6% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Melbourne metro's 93.9% houses and 6.0% other dwellings. Home ownership in Diamond Creek stood at 36.0%, with mortgaged dwellings at 53.9% and rented ones at 10.1%. The median monthly mortgage repayment was $2,167, aligning with Melbourne metro's average, while the median weekly rent was $430, slightly higher than Melbourne metro's $431. Nationally, Diamond Creek's mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially above the national figure of $375.

Diamond Creek features high concentrations of family households, with a fairly typical median household size

Family households account for 84.4% of all households, including 47.3% couples with children, 25.7% couples without children, and 10.8% single parent families. Non-family households constitute the remaining 15.6%, with lone person households at 14.6% and group households comprising 0.9%. The median household size is 2.9 people, which aligns with the Greater Melbourne average.

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

Educational qualifications in Diamond Creek show that 29.3% of residents aged 15 and above hold university degrees, compared to Greater Melbourne's 37.0%. This indicates potential for educational development. Bachelor degrees are the most common at 19.6%, followed by postgraduate qualifications (5.7%) and graduate diplomas (4.0%). Vocational credentials are also prominent, with 36.6% of residents aged 15 and above holding such qualifications - advanced diplomas at 12.5% and certificates at 24.1%.

Educational participation is high, with 30.0% of residents currently enrolled in formal education. This includes 9.7% in primary education, 9.0% in secondary education, and 5.2% pursuing tertiary education. Diamond Creek's four schools have a combined enrollment of 1,691 students as of the latest data. The area has above-average socio-educational conditions (ICSEA: 1058). Educational provision is balanced with three primary schools and one secondary school serving distinct age groups.

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

Transport analysis shows 44 active stops operating in Diamond Creek, offering a mix of train and bus services. These stops are served by 9 individual routes, collectively providing 6,139 weekly passenger trips. Transport accessibility is rated good, with residents typically located 266 meters from the nearest stop.

Service frequency averages 877 trips per day across all routes, equating to approximately 139 weekly trips per stop.

Diamond Creek's residents are extremely healthy with both young and old age cohorts seeing low prevalence of common health conditions

Analysis of health metrics shows strong performance throughout Diamond Creek. Both young and old age cohorts exhibit low prevalence of common health conditions.

The rate of private health cover is very high at approximately 57% of the total population (~7,410 people), compared to 60.1% across Greater Melbourne. The most common medical conditions in the area are asthma and mental health issues, impacting 7.8 and 7.7% of residents respectively. Seventy-one point eight percent of residents declare themselves completely clear of medical ailments, compared to 70.6% across Greater Melbourne. The area has 15.2% of residents aged 65 and over (1,976 people), lower than the 19.2% in Greater Melbourne. Health outcomes among seniors are particularly strong, broadly in line with the general population's health profile.

Diamond Creek ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

Diamond Creek's population shows lower cultural diversity, with 85.0% born in Australia, 94.0% being citizens, and 91.1% speaking English only at home. Christianity is the predominant religion, accounting for 46.8%. Judaism, however, is overrepresented compared to Greater Melbourne, making up 0.1% of Diamond Creek's population.

The top three ancestry groups are English (28.4%), Australian (26.5%), and Irish (9.4%). Notably, Macedonian (1.0%) is overrepresented compared to the regional average of 0.7%. Similarly, Italian (6.8%) and Maltese (1.2%) also show higher representation than their regional averages of 6.2% and 1.0%, respectively.

Diamond Creek's population is slightly older than the national pattern

The median age in Diamond Creek is 39 years, which is higher than Greater Melbourne's average of 37 years and very close to Australia's national average of 38 years. Compared to Greater Melbourne, Diamond Creek has a notably higher proportion of the 55-64 age cohort (13.9% locally) and a lower proportion of the 25-34 age cohort (9.7%). According to post-2021 Census data, the 75-84 age group has increased from 3.6% to 5.0% of Diamond Creek's population, while the 25-34 age cohort has decreased from 11.2% to 9.7%. Population forecasts for 2041 indicate significant demographic changes in Diamond Creek. The 75-84 age group is expected to grow by 80%, adding 522 people and reaching a total of 1,173 from the current 650. Residents aged 65 and older are projected to represent 53% of the population growth. Conversely, the 0-4 age cohort is anticipated to decline by 43 people.