Sans Souci

An assessment of population growth drivers in Sans Souci reveals an overall ranking slightly below national averages considering recent, and medium term trends

As of Feb 2026, the population of the suburb of Sans Souci is estimated at around 11,271. This reflects an increase of 407 people since the 2021 Census, which reported a population of 10,864 people. The change was inferred from AreaSearch's estimation of the resident population at 11,043 following examination of ABS' latest ERP data release in June 2024 and an additional 71 validated new addresses since the Census date. This level of population results in a density ratio of 3,671 persons per square kilometer, placing Sans Souci in the upper quartile relative to national locations assessed by AreaSearch. Overseas migration contributed approximately 76.0% of overall population gains during recent periods.

AreaSearch is adopting 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 NSW State Government's SA2 level projections released in 2022 with a base year of 2021. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. Future population trends indicate lower quartile growth, with the suburb expected to increase by 373 persons to 2041 based on aggregated SA2-level projections, reflecting an overall increase of 1.3% over the 17-year period.

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

AreaSearch analysis of ABS building approval numbers shows Sans Souci had around 49 residential properties approved annually. From FY-21 to FY-25, approximately 247 homes were approved, with another 36 in FY-26 so far. Despite population decline, housing supply has been adequate relative to demand, maintaining a balanced market with good buyer choice.

New dwellings are developed at an average cost of $739,000, indicating focus on the premium segment. Commercial approvals this year totalled $25.1 million, reflecting steady commercial investment activity. Compared to Greater Sydney, Sans Souci has 19.0% less building activity per person but ranks in the 70th percentile nationally for areas assessed. New development consists of 43.0% standalone homes and 57.0% townhouses or apartments, catering to downsizers, investors, and entry-level buyers.

The area has approximately 190 people per dwelling approval, indicating low density. By 2041, Sans Souci is projected to grow by 145 residents. Current construction levels should meet demand adequately, creating favourable conditions for buyers while potentially exceeding current growth forecasts.

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

Eight projects are likely to impact the area according to AreaSearch. These include M6 Motorway Stage 1, Allure Collection, Sydney Metro West, and St George Hospital Redevelopment Stage 3. The following details projects expected to have significant relevance.

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AreaSearch analysis places Sans Souci well above average for employment performance across multiple indicators

Sans Souci has an educated workforce with strong professional services representation. Its unemployment rate is 2.6%, lower than Greater Sydney's 4.2%. Employment growth over the past year was estimated at 4.9%.

As of December 2025, 6,409 residents are employed while the unemployment rate is 1.5% below Greater Sydney's rate. Workforce participation is equal to Greater Sydney's 70.2%. Census data shows 40.4% of residents work from home, potentially impacted by Covid-19 lockdowns. Dominant employment sectors include health care & social assistance, construction, and professional & technical services.

Construction is particularly strong with an employment share 1.3 times the regional level. However, professional & technical services are under-represented at 10.0% compared to Greater Sydney's 11.5%. Limited local employment opportunities are indicated by the resident population vs working population count. Between December 2024 and December 2025, employment increased by 4.9%, labour force by 5.2%, causing unemployment to rise by 0.2 percentage points. In Greater Sydney, employment grew by 2.2% and unemployment rose marginally. Jobs and Skills Australia's national employment forecasts from May-25 project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Sans Souci's employment mix suggests local employment should increase by 6.8% over five years and 13.7% over ten years, though this is a simple extrapolation for illustrative purposes only.

The economic profile demonstrates above-average performance, with income metrics exceeding national benchmarks based on AreaSearch comparative assessment

The suburb of Sans Souci has an above average national income level according to AreaSearch's aggregation of ATO data for financial year 2023. The median income among taxpayers in Sans Souci is $55,519 and the average income stands at $76,857. These figures compare to Greater Sydney's median income of $60,817 and average income of $83,003 respectively. Based on Wage Price Index growth of 8.86% since financial year 2023, estimated incomes for September 2025 would be approximately $60,438 (median) and $83,667 (average). According to the 2021 Census, household, family and personal incomes in Sans Souci are at the 58th percentile nationally. Income distribution shows that the $1,500 - $2,999 bracket dominates with 28.7% of residents (3,234 people), similar to the broader area where 30.9% occupy this bracket. High housing costs consume 17.8% of income, but strong earnings place disposable income at the 55th percentile nationally. The suburb's SEIFA income ranking places it in the 7th decile.

Sans Souci displays a diverse mix of dwelling types, with above-average rates of outright home ownership

The dwelling structure in Sans Souci, as per the latest Census, consisted of 48.8% houses and 51.3% other dwellings (semi-detached, apartments, 'other' dwellings). In comparison, Sydney metro had 55.9% houses and 44.1% other dwellings. Home ownership in Sans Souci was at 41.2%, with mortgaged dwellings at 31.3% and rented ones at 27.5%. The median monthly mortgage repayment in the area was $2,700, higher than Sydney metro's average of $2,427. The median weekly rent figure was recorded at $500, compared to Sydney metro's $470. Nationally, Sans Souci's mortgage repayments were significantly higher than the Australian average of $1,863, while rents were substantially above the national figure of $375.

Sans Souci has a typical household mix, with a lower-than-average median household size

Family households account for 69.4% of all households, including 32.6% couples with children, 24.8% couples without children, and 11.1% single parent families. Non-family households constitute the remaining 30.6%, with lone person households at 28.6% and group households making up 1.9%. The median household size is 2.5 people, smaller than the Greater Sydney average of 2.7.

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

Educational qualifications in Sans Souci exceed regional benchmarks. Specifically, 29.4% of residents aged 15 and above hold university degrees, compared to the SA3 area's 38.7%. Bachelor degrees are most common at 21.1%, followed by postgraduate qualifications (6.5%) and graduate diplomas (1.8%). Vocational credentials are also prevalent, with 32.9% of residents aged 15 and above holding such qualifications - advanced diplomas at 12.5% and certificates at 20.4%.

Educational participation is high, with 27.3% of residents currently enrolled in formal education. This includes 9.0% in primary education, 7.7% in secondary education, and 4.9% pursuing tertiary education.

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

Sans Souci has 84 active public transport stops, all of which are bus stops. These stops are served by 17 different routes that together facilitate 1,692 weekly passenger trips. The area's transport accessibility is rated as excellent, with residents typically located 143 meters from the nearest stop. As a primarily residential area, most commuting is outward-bound. The car remains the dominant mode of transport at 85%, while 6% use the train. On average, there are 1.3 vehicles per dwelling.

According to the 2021 Census, 40.4% of residents work from home, which may reflect COVID-19 conditions. The service frequency averages 241 trips per day across all routes, equating to approximately 20 weekly trips per individual stop.

Sans Souci's residents are extremely healthy with prevalence of common health conditions low among the general population though slightly higher across older, at risk cohorts

Analysis of health metrics shows strong performance throughout Sans Souci. Mortality rates and chronic condition prevalence were assessed by AreaSearch, with low prevalence of common health conditions among the general population.

However, prevalence was slightly higher among older, at-risk cohorts. Private health cover rate was very high, approximately 57% of the total population (~6,457 people), compared to 59.9% across Greater Sydney. The most common medical conditions were arthritis and mental health issues, impacting 7.9 and 5.7% of residents respectively. 71.9% of residents declared themselves completely clear of medical ailments, compared to 74.6% across Greater Sydney. Working-age residents had low chronic condition prevalence. The area has 24.8% of residents aged 65 and over (2,795 people), higher than the 15.4% in Greater Sydney. Health outcomes among seniors were above average but ranked lower nationally compared to the broader population.

Sans Souci was found to be more culturally diverse than the vast majority of local markets in Australia, upon assessment of a range of language and cultural background related metrics

Sans Souci has a high level of cultural diversity, with 32.0% of its population born overseas and 40.5% speaking a language other than English at home. Christianity is the predominant religion in Sans Souci, accounting for 72.8% of people, which is higher than the Greater Sydney average of 49.2%. The top three ancestry groups are Greek (16.2%), Australian (15.1%), and English (14.9%).

Notably, Serbian (1.3%) and Macedonian (2.4%) are overrepresented compared to regional averages of 0.5% and 0.4%, respectively. Spanish is also slightly overrepresented at 1.0%.

Sans Souci hosts a notably older demographic compared to the national average

Sans Souci has a median age of 44, which exceeds Greater Sydney's figure of 37 and is substantially higher than the national norm of 38. The 75-84 age group comprises 9.3% of Sans Souci's population, compared to Greater Sydney, while the 25-34 cohort makes up 9.7%. According to the 2021 Census, the 75 to 84 age group has grown from 8.0% to 9.3%, and the 15 to 24 cohort has increased from 10.2% to 11.3%. Conversely, the 45 to 54 cohort has declined from 14.5% to 12.8%. Demographic modeling indicates that Sans Souci's age profile will significantly change by 2041. Leading this shift, the 85+ group is projected to grow by 82%, reaching 905 people from 495. The aging population trend is evident, with those aged 65 and above accounting for 100% of the projected growth. Meanwhile, the 45 to 54 and 55 to 64 cohorts are expected to experience population declines.