Casula (NSW)

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Based on demographic assessments of the broader region, and additional new residential locations validated by Districts since the Census, the resident population of the suburb of Casula is calculated to be 17,135 as of May 2026. This represents a growth of 551 residents (3.3%) relative to the 2021 Census, which counted 16,584 individuals. The figure is derived from a base resident count of 17,039, projected by Districts using the ABS June 2025 ERP release, combined with 199 validated new addresses registered after the Census. This count corresponds to a density of 2,423 persons per square kilometer, placing the area in the top quartile of nationwide residential locations evaluated by Districts. Inward international migration was the primary driver of growth, accounting for approximately 61.0% of the overall population gains in recent times.

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The suburb of Casula possesses a workforce with a strong presence in vital service industries, an unemployment rate of 4.5%, and employment growth estimated at 4.9% over the course of the last year, according to statistical data compiled by Districts. In March 2026, 8,619 local residents were employed. The unemployment rate is 0.4% higher than the rate in Greater Sydney, which sits at 4.1%, while local labor force participation is lower than the metropolitan standard, standing at 66.4% compared to 69.1% across Greater Sydney. Census responses indicated that a substantial 35.1% of working residents performed their jobs from home, though this figure should be interpreted in light of pandemic-related restrictions.

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The income levels of taxpayers in the suburb of Casula are below the national average based on financial year 2023 ATO statistics compiled by Districts. Taxpayers in the suburb of Casula recorded a median income of $46,429 and an average income of $54,587, compared to Greater Sydney averages of $60,817 and $83,003. Factoring in a Wage Price Index increase of 10.32% since financial year 2023, updated estimates suggest figures of roughly $51,220 for median income and $60,220 for average income as of March 2026. Looking at the 2021 Census, individual weekly earnings were positioned in the 18th percentile at $645, whereas household incomes performed comparatively better, ranking in the 48th percentile. The most prominent weekly household earnings bracket was $1,500 - 2,999, which accounted for 32.8% of households (representing residents), mirroring the broader region where this same income cohort comprised . Affordability pressures are pronounced, with households retaining only of their income, ranking in the th percentile, while the local SEIFA income score falls within the th decile.

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Residential architecture in the suburb of Casula at the time of the latest Census consisted of 71.2% standalone houses and 28.8% multi-unit dwellings, apartments, or other structures, compared to a split of 55.9% houses and 44.1% other dwellings across metropolitan Sydney. Home ownership rates in the suburb of Casula were equivalent to metropolitan Sydney at 27.7%, with the remaining properties occupied under a mortgage (39.4%) or rented (32.9%). The median monthly mortgage payment of $2,167 was lower than the Sydney metropolitan average of $2,427, while the median weekly rent was recorded at $450 compared to the metropolitan average of $470. On a national level, monthly mortgage payments in the suburb of Casula are higher than the Australian median of $1,863, and weekly rents are above the national median of $375.

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Families make up the vast majority of local households at 81.3% of the total, consisting of couples with children at 47.2%, couples without children at 18.3%, and single parents with children at 14.7%. Non-family households account for the remaining 18.7%, with single-person households representing 17.1% and group households comprising 1.7%. The median household size of 3.2 individuals exceeds the Greater Sydney average of 2.7.

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Higher education completion rates represent an area for improvement, with 24.8% of residents holding a university degree, compared to the Greater Sydney average of 38.0%. This highlights a clear opportunity for targeted educational programs. Among university graduates, bachelor degrees are the most common at 17.9%, followed by postgraduate degrees at 5.4% and graduate diplomas at 1.5%. Vocational and technical training is highly prevalent, with 31.2% of residents aged 15+ holding a vocational qualification, split between advanced diplomas (11.4%) and certificates (19.8%).

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Analysis of local public transport shows 127 active transit stops operating within the suburb of Casula, consisting of bus stops and train stations. These stops are served by 60 unique routes, providing a combined 5,555 passenger trips every week. Accessibility is high, with residents living an average of 148 meters from the nearest stop. Because the area is primarily residential, most workers commute out of the suburb, with private cars remaining the primary travel mode at 87%, followed by trains at 7%. Households own an average of 1.6 vehicles, which is above the metropolitan average. Census data from 2021 showed that 35.1% of residents worked from home, which may reflect pandemic-era travel restrictions.

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Public health metrics reveal positive trends for residents of the suburb of Casula, with Districts analysis of mortality statistics and chronic ailments showing outcomes that align closely with national averages. The prevalence of common illnesses is low among the general population, though it exceeds national figures within older, vulnerable age brackets. The rate of private health insurance is low, with approximately 49% of the population holding coverage (roughly 8,322 people), compared to 59.9% across Greater Sydney and a national average of 55.7%.

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The suburb of Casula ranks among the most culturally diverse locations in Australia, with 46.8% of residents born outside the country and 59.7% speaking a non-English language at home. Christianity is the primary religion, adhered to by 51.7% of the population. The most pronounced religious difference relative to the wider metropolitan area is in Islam, which is practiced by 22.0% of residents, compared to the Greater Sydney average of 6.8%.

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The median age in the suburb of Casula is 36 years, which is close to the Greater Sydney average of 37 and slightly below the Australian median of 38. Compared to the wider Sydney region, there is a higher proportion of children aged 5 - 14 (14.2%) and a lower proportion of young adults aged 25 - 34 (13.0%). Since the 2021 Census, the proportion of residents aged 65 to 74 grew from 7.8% to 8.8%, while the cohort aged 45 to 54 shrank from 13.0% to 12.3%. Projections suggest the age structure will change significantly by 2041, with the 75 to 84 cohort expected to grow by 67%, adding residents to reach a total of while the to and to age cohorts are projected to shrink.

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Casula currently has an estimated 1,096 children under 5 years old, comprising approximately 647 children aged 0-2 and 431 children aged 3-4. This cohort declined by an estimated 4% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 1% by 2041 (to approximately 1,083 children). Meanwhile the 5-12 cohort currently amounts to 1,941. Birth rates in the area have averaged 12.7 per 1,000 residents over the latest two-year period, a high rate (among the top 30% of areas assessed nationally). This rate has slowed down slightly in recent years however.