Mardi (NSW)

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In the suburb of Mardi, the resident population is projected to be approximately 3,682 in May 2026, an evaluation derived from ABS population updates for the wider region and new home locations verified by Districts since the Census. This indicates an expansion of 84 individuals (2.3%) from the 2021 Census, which recorded 3,598 residents. This shift is calculated from a resident base of 3,681, projected by Districts using the ABS June 2025 ERP release alongside 2 validated new addresses registered after the Census date. Such a population size results in 387 persons per square kilometer, which indicates substantial space per individual and capacity for future housing additions. The 2.3% post-census growth rate for the suburb of Mardi is within 1.1 percentage points of the broader SA4 region (3.4%), showing healthy growth dynamics. The expansion was largely propelled by arrivals from overseas, who made up roughly 63.0% of the overall population increases in recent times.

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A highly capable workforce resides here, showing strong representation in crucial service industries, a jobless rate of only 2.8%, and a 2.5% increase in local jobs over the prior year, according to compiled regional data from Districts. In March 2026, working residents numbered 1,997, with the unemployment rate sitting 1.3% below the 4.1% recorded for Greater Sydney, while workforce participation aligned closely with the metropolitan rate of 69.1%. Census records indicate that 28.5% of working locals did their jobs from home, although this figure was likely influenced by pandemic-related movement restrictions.

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Tax statistics compiled by Districts for the 2023 financial year indicate that typical earnings are below the national average. The median taxable income is $49,794 and the average is $60,828, which contrasts with Greater Sydney benchmarks of $60,817 and $83,003 respectively. Factoring in Wage Price Index growth of 10.32% since the 2023 financial year, current estimates would sit around $54,933 for the median and $67,105 for the average as of March 2026. The 2021 Census reports that household, family, and individual incomes are positioned near the 54th percentile nationally. The statistics reveal that 36.5% of the population (1,343 individuals) earn between $1,500 - 2,999, mirroring the wider regional trend of 30.9% in this bracket. Rent and mortgage commitments absorb of income, though solid earnings keep disposable funds at the nd percentile, and the SEIFA score for income sits in the th decile.

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Residential buildings in the area at the time of the last Census consisted of 78.0% standalone houses and 22.0% alternative formats such as townhouses, units, or other options, compared to the wider metropolitan split of 55.9% houses and 44.1% other dwellings. The proportion of outright home owners matched the metropolitan average of 29.3%, with remaining households holding a mortgage (40.8%) or renting (29.9%). The median monthly home loan payment was $1,913, which is far lower than the metropolitan median of $2,427, while the median weekly rental cost was $440, compared to $470 in the metropolitan area. Nationally, local mortgage commitments exceed the Australian median of $1,863, and typical rent levels are notably higher than the countrywide figure of $375.

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Families make up the vast majority of households at 79.4%, which includes 38.4% couples with kids, 23.0% couples without kids, and 17.1% single-parent households. Non-family living arrangements account for the remaining 20.6%, with single-person households representing 18.2% and shared households making up 2.5% of the total. The typical household size is 2.8 occupants, which exceeds the metropolitan average of 2.7.

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The community has lower rates of tertiary education, with university graduates making up 21.6% of the population, compared to 38.0% across Greater Sydney. This represents both a hurdle and a chance for targeted training programs. Undergraduate degrees are the most common qualification at 16.0%, followed by postgraduate studies (3.6%) and graduate diplomas (2.0%). Practical and vocational qualifications are highly prevalent, with 39.6% of residents aged 15+ possessing trade certificates, comprising advanced diplomas (12.4%) and certificates (27.2%).

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Analysis of public transit options shows 30 active passenger stops operating in the area, consisting of bus services. These stops support 51 different transit routes, which provide a total of 596 passenger runs each week. Transit access is classified as highly convenient, with residents living an average of 173 meters from their nearest boarding point. As the locality is mostly residential, the majority of workers travel elsewhere for employment, with private cars being the primary transit choice at 88% and trains accounting for 5%. Households own an average of 1.6 cars, which is higher than the regional average. A significant 28.5% of working residents performed their duties from home, based on 2021 Census records, which may have been influenced by pandemic measures.

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A review of death statistics and the frequency of ongoing illnesses indicates notable health difficulties, with common ailments appearing across both youth and elderly demographics, while private health insurance membership is low, covering roughly 51% of residents (~1,878 people). This compares to a coverage level of 59.9% across the metropolitan area.

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The locality displays higher levels of multiculturalism than typical areas, with 20.5% of the population arriving from other countries and 12.4% communicating in a language other than English when at home. The predominant religious affiliation is Christianity, representing 56.7% of the community, compared to 49.2% across Greater Sydney.

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The typical age of residents is 37, matching the Greater Sydney median of 37 and sitting close to the national figure of 38. Children aged 5 - 14 are highly represented at 14.6% of the population, while young adults aged 25 - 34 are less common at 12.3%. Since 2021, the proportion of residents aged 85+ grew from 1.6% to 2.5%, whereas the group aged 45 to 54 dropped from 14.7% to 13.8%. Looking forward to 2041, demographic models indicate clear changes in the age profile. Leading these changes, the cohort aged 65 to 74 is expected to rise by 30% (97 people), climbing from to . This demographic shift towards an older population is highlighted by the fact that those aged + account for of the total projected growth. Conversely, the groups aged to and to are projected to experience drops in population.

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Mardi currently has an estimated 209 children under 5 years old, comprising approximately 125 children aged 0-2 and 83 children aged 3-4. This cohort grew by an estimated 4% since the previous census. though population forecasts indicate future decline, with an anticipated decrease of 7% by 2041 (to approximately 195 children). Meanwhile the 5-12 cohort currently amounts to 384. While growth has been positive birth rates observed in the area have been moderate, with approximately 10.9 births per 1,000 residents recorded over the latest two-year period analysed which ranks the area within the middle tier nationally.