Mardi

Mardi is positioned among the lower quartile of areas assessed nationally for population growth based on AreaSearch's assessment of recent, and medium term trends

The estimated population of the suburb of Mardi is around 3,682 as of May 2026. This figure reflects an increase of 84 people since the 2021 Census, which reported a population of 3,598. The change is inferred from AreaSearch's estimate of 3,681 residents following examination of the latest ERP data release by the ABS in June 2025 and two additional validated new addresses since the Census date. This level of population equates to a density ratio of 387 persons per square kilometer. Mardi's growth rate of 2.3% since the census positions it within 1.1 percentage points of the SA4 region, demonstrating competitive growth fundamentals. Overseas migration contributed approximately 63.0% 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 are applied to all areas for years 2032 to 2041. Looking ahead, population projections indicate an increase just below the median of Australian statistical areas. The suburb is expected to increase by 254 persons to 2041 based on aggregated SA2-level projections, reflecting a total increase of 6.9% over the 16-year period.

The level of residential development activity in Mardi is very low in comparison to the average area assessed nationally by AreaSearch

AreaSearch analysis of ABS building approval numbers shows Mardi has had virtually no dwelling approvals in recent years. Specifically, there were an estimated 4 homes approved between FY21-FY25, and none so far in FY26. Despite the population decline during this period, housing supply has remained adequate relative to demand, indicating a well-balanced market with good buyer choice.

The average construction value for new properties is $383,000. In contrast, commercial development approvals totalled $40,000 in FY26, reflecting the area's residential nature. Compared to Greater Sydney, Mardi has significantly reduced construction activity, which generally supports stronger demand and values for established homes. However, building activity has accelerated recently, suggesting possible planning constraints. All recent development comprised detached dwellings, maintaining the area's traditional low density character with a focus on family homes. This favours detached housing more than current patterns suggest (78.0% at Census), demonstrating robust demand for family homes despite increasing density pressures. The estimated 1818 people per dwelling approval reflects Mardi's quiet, low activity development environment.

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

Changes in local infrastructure significantly impact an area's performance. AreaSearch has identified 11 projects that could affect this region. Notable ones include the Wyong South Sewage Treatment Plant Upgrade, Tuggerah Precinct Activation - Westfield Redevelopment, M1 Pacific Motorway Tuggerah to Doyalson Widening, and Sinclair Crescent Housing Development - Wyong. The following list provides details on those most relevant.

Professional plan users can use the search below to filter and access additional projects.

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AreaSearch analysis reveals Mardi significantly outperforming the majority of regions assessed nationwide

Mardi has a skilled workforce with well-represented essential services sectors. Its unemployment rate is 2.5%, with an estimated employment growth of 2.9% over the past year, according to AreaSearch's statistical area data aggregation. As of December 2025, there are 1,993 residents in work, and the unemployment rate is 1.6% lower than Greater Sydney's rate of 4.2%.

Workforce participation is similar to Greater Sydney's at 68.8%. Census responses indicate that 28.5% of residents work from home, though Covid-19 lockdown impacts should be considered. Employment among residents is concentrated in health care & social assistance, retail trade, and construction sectors.

In contrast, professional & technical services employ only 6.6% of local workers compared to Greater Sydney's 11.5%. There is one worker per resident as at the Census, indicating that Mardi functions as an employment hub with more jobs than residents, attracting workers from surrounding areas. Between December 2024 and December 2025, employment levels increased by 2.9%, labour force grew by 3.6%, resulting in a rise of unemployment by 0.7 percentage points. In comparison, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 suggest that national employment will expand by 6.6% over five years and 13.7% over ten years. Applying these projections to Mardi's employment mix indicates that local employment should increase by 6.5% over five years and 13.5% over ten years, based on a simple weighting extrapolation for illustrative purposes and not accounting for localized population projections.

The area's income profile falls below national averages based on AreaSearch analysis

According to AreaSearch's aggregation of the latest postcode level ATO data released for financial year ending June 2023, Mardi had a median income among taxpayers of $49,794 with an average income of $60,828. This is lower than national averages which stood at $60,817 and $83,003 respectively for Greater Sydney during the same period. Based on Wage Price Index growth rate of 10.32% from financial year ending June 2023 to March 2026, current estimates suggest a median income of approximately $54,933 and an average income of around $67,105 in Mardi as of March 2026. According to the Census conducted on August 10, 2021, household, family, and personal incomes in Mardi are at the 54th percentile nationally. Income distribution data shows that the majority of residents, 36.5% or 1,343 people, fall within the $1,500 to $2,999 income bracket, which is similar to regional patterns where 30.9% of residents occupy this range. Housing costs consume 15.9% of income in Mardi, but despite this, disposable income remains at the 62nd percentile nationally. The area's SEIFA income ranking places it within the fifth decile.

Mardi is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

Dwelling structure in Mardi, as evaluated at the latest Census, comprised 78.0% houses and 22.0% other dwellings. In Sydney metro, this was 55.9% houses and 44.1% other dwellings. Home ownership in Mardi was 29.3%, similar to Sydney metro's figure. Dwellings were either mortgaged (40.8%) or rented (29.9%). The median monthly mortgage repayment in Mardi was $1,913, lower than Sydney metro's average of $2,427. Median weekly rent in Mardi was $440, compared to $470 in Sydney metro. Nationally, Mardi's mortgage repayments were higher at $1,913 vs. $1,863, and rents were substantially above the national figure of $375.

Mardi features high concentrations of family households, with a higher-than-average median household size

Family households constitute 79.4% of all households, consisting of 38.4% couples with children, 23.0% couples without children, and 17.1% single parent families. Non-family households comprise the remaining 20.6%, with lone person households at 18.2% and group households making up 2.5%. The median household size is 2.8 people, which is larger than the Greater Sydney average of 2.7.

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

The area's university qualification rate stands at 21.6%, significantly lower than Greater Sydney's average of 38.0%. Bachelor degrees are the most prevalent among qualifications, with a rate of 16.0%, followed by postgraduate qualifications (3.6%) and graduate diplomas (2.0%). Vocational credentials are prominent, with 39.6% of residents aged 15+ holding them, including advanced diplomas (12.4%) and certificates (27.2%). Educational participation is high, with 32.5% of residents currently enrolled in formal education, comprising 12.0% in primary, 8.9% in secondary, and 4.5% in tertiary education.

Educational participation is notably high, with 32.5% of residents currently enrolled in formal education. This includes 12.0% in primary education, 8.9% in secondary education, and 4.5% pursuing tertiary education.

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

Mardi has 30 active public transport stops, all of which are bus stops. These stops are served by 51 different routes that together facilitate 596 weekly passenger trips. The accessibility of these transport services is rated as excellent, with residents typically living just 173 meters from the nearest stop. In this primarily residential area, most commuters travel outward. Cars remain the primary mode of transportation for 88% of residents, while only 5% use trains. On average, there are 1.6 vehicles per dwelling, which is higher than the regional average.

According to the 2021 Census, a significant 28.5% of Mardi's residents work from home, possibly due to COVID-19 conditions. The service frequency across all routes averages 85 trips per day, equating to approximately 19 weekly trips per individual stop.

Health performance in Mardi is lower than average with prevalence of common health conditions notable across both younger and older age cohorts

Mardi faces significant health challenges based on AreaSearch's assessment of mortality rates and chronic condition prevalence. The prevalence of common health conditions is notable across both younger and older age cohorts.

The rate of private health cover is relatively low at approximately 51% of the total population, which amounts to around 1,878 people. This compares to a rate of 59.9% across Greater Sydney. The most common medical conditions in the area are mental health issues and asthma, impacting 10.2 and 8.9% of residents respectively. Meanwhile, 65.8% of residents declare themselves completely clear of medical ailments, compared to 74.6% across Greater Sydney. Working-age residents show an above-average prevalence of chronic health conditions. The area has 16.5% of residents aged 65 and over, which totals 607 people, higher than the 15.5% in Greater Sydney. Health outcomes among seniors present some challenges, with national rankings broadly in line with the general population.

In terms of cultural diversity, Mardi records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics

Mardi's population has notable diversity, with 20.5% born overseas and 12.4% speaking a language other than English at home. Christianity is the predominant religion in Mardi, practiced by 56.7%, compared to 49.2% across Greater Sydney. For ancestry, English (29.9%) and Australian (27.0%) are significantly higher than regional averages of 19.0% and 17.8% respectively.

Irish ancestry is also notable at 7.8%. Some ethnic groups show significant differences: Spanish at 0.8% vs 0.6%, Korean at 0.7% vs 1.1%, and South Australian at 0.7% vs 0.5%.

Mardi's population is slightly younger than the national pattern

Mardi's median age is exactly 37 years, matching Greater Sydney's figure and remaining close to Australia's median age of 38. The age group of 5-14 years comprises 14.6% of Mardi's population, higher than Greater Sydney's percentage. Conversely, the 25-34 cohort makes up only 12.3%. Between 2021 and present, the 85+ age group has increased from 1.6% to 2.5% of the population. Meanwhile, the 45 to 54 age group has decreased from 14.7% to 13.8%. By 2041, demographic projections indicate significant shifts in Mardi's age structure. Notably, the 65-74 age group is projected to grow by 30%, reaching 418 people from its current figure of 320. The aging population trend is evident, with those aged 65 and above accounting for 74% of the projected growth. Conversely, the 15-24 and 0-4 age cohorts are expected to experience population declines.