Leppington

Leppington lies within the top 10% of areas nationally in terms of population growth performance according to AreaSearch analysis of short and medium-term trends

As of May 2026, the estimated population of the suburb of Leppington is around 15,823. This reflects a significant increase from the 2021 Census figure of 9,423 people, marking a growth of 67.9%. The current resident population estimate of 15,259 by AreaSearch was derived from examining the latest ERP data release by the ABS in June 2025 and considering an additional 1,753 validated new addresses since the Census date. This results in a population density ratio of 777 persons per square kilometer, which is comparable to averages observed across other locations assessed by AreaSearch. The suburb's growth rate since the 2021 census exceeds both the state average (7.1%) and that of Greater Sydney, positioning it as a notable growth leader in the region. This growth was primarily driven by interstate migration, contributing approximately 79.0% of overall population gains during recent periods.

However, all factors including natural growth and overseas migration were positive contributors. AreaSearch's projections for Leppington are based on ABS/Geoscience Australia data released in 2024 with a base year of 2022, or the NSW State Government's SA2 level projections released in 2022 with a base year of 2021 for areas not covered by the former. These projections anticipate exceptional growth for Leppington over the period from 2026 to 2041, with an expected increase of 30,167 persons, reflecting a total gain of 187.1% in population during this timeframe.

The level of residential development activity in Leppington was found to be higher than 90% of real estate markets across the country

AreaSearch analysis of ABS building approval numbers allocated from statistical area data shows Leppington had around 460 new homes approved each year. Between FY-21 and FY-25, approximately 2,302 homes were approved, with an additional 243 approved in FY-26 so far. This results in an average of 2.9 new residents per dwelling built over the past five financial years, indicating strong demand for housing.

The average construction cost value of new homes is $523,000, suggesting developers are focusing on the premium market with high-end developments. In FY-26, Leppington has registered $34.6 million in commercial approvals, demonstrating robust local business investment. Compared to Greater Sydney, Leppington has 138.0% more building activity per person, offering buyers greater choice. However, building activity has slowed in recent years. This high level of activity is substantially higher than the national average, indicating strong developer confidence in the location.

New building activity consists of 91.0% detached dwellings and 9.0% townhouses or apartments, maintaining the area's traditional low density character with a focus on family homes appealing to those seeking space. The location has approximately 45 people per dwelling approval, indicating an expanding market. Population forecasts indicate Leppington will gain 29,603 residents through to 2041, based on the latest AreaSearch quarterly estimate. If current construction levels persist, housing supply may lag population growth, potentially intensifying buyer competition and underpinning price growth.

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

AreaSearch has identified 54 projects that could impact the area, with key ones including Leppington Oval Precinct Masterplan, Leppington Greens Estate, South West Sydney Rail Planning - Business Case, and New High School for Leppington and Denham Court. The following list details those likely to be most relevant.

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

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

Leppington's workforce is highly educated with strong professional services representation. The unemployment rate was 1.7% in the past year, showing an estimated employment growth of 4.9%. As of December 2025, 7,957 residents were employed, with an unemployment rate of 2.5%, below Greater Sydney's rate of 4.2%.

Workforce participation was 72.3%, close to Greater Sydney's 68.8%. A high 39.3% of residents worked from home, potentially influenced by Covid-19 lockdowns. Key employment sectors were health care & social assistance, construction, and retail trade. The area had a significant specialization in transport, postal & warehousing (1.5 times the regional level), but lower representation in professional & technical services (7.0% vs 11.5%).

Employment opportunities locally appeared limited, indicated by Census data comparing working population to resident population. Between December 2024 and December 2025, employment levels increased by 4.9%, with labour force growth also at 4.9%. In contrast, Greater Sydney had lower employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 suggest potential future demand in Leppington. Applying these projections to the local employment mix indicates a possible increase of 6.5% over five years and 13.5% over ten years, though these are simple weighted extrapolations for illustrative purposes only.

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

AreaSearch's latest postcode level ATO data for financial year 2023 indicates that Leppington's median income among taxpayers is $59,993, with an average of $68,887. Nationally, this is slightly above average. In Greater Sydney, the median is $60,817 and the average is $83,003. Based on Wage Price Index growth of 10.32% since financial year 2023, current estimates for Leppington would be approximately $66,184 (median) and $75,996 (average) as of March 2026. According to Census 2021 income data, household, family and personal incomes in Leppington rank highly nationally, between the 68th and 82nd percentiles. Income analysis reveals that the largest segment comprises 36.5% earning $1,500 - 2,999 weekly (5,775 residents), similar to the metropolitan region where 30.9% occupy this bracket. Notably, 32.4% earn above $3,000/week, indicating strong economic capacity in the suburb. High housing costs consume 20.3% of income, but strong earnings place disposable income at the 75th percentile nationally. The area's SEIFA income ranking places it in the 7th decile.

Leppington is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

Leppington's dwellings were 95.7% houses and 4.3% other types at the latest Census, compared to Sydney metro's 55.9% houses and 44.1% other types. Home ownership in Leppington was 23.0%, with mortgaged dwellings at 51.5% and rented at 25.5%. The median monthly mortgage repayment was $2,700, above Sydney metro's $2,427. Median weekly rent was $550, higher than Sydney metro's $470. Nationally, Leppington's mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially above the national figure of $375.

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

Family households account for 84.3% of all households, including 50.9% couples with children, 24.1% couples without children, and 7.9% single parent families. Non-family households constitute the remaining 15.7%, with lone person households at 14.0% and group households comprising 1.6%. The median household size is 3.2 people, larger than the Greater Sydney average of 2.7.

Leppington performs slightly above the national average for education, showing competitive qualification levels and steady academic outcomes

The area's educational profile is notable regionally with university qualification rates at 31.4% for residents aged 15+, surpassing the SA4 region average of 21.4% and the SA3 area average of 22.6%. Bachelor degrees are most prevalent at 21.2%, followed by postgraduate qualifications at 8.2% and graduate diplomas at 2.0%. Vocational credentials are held by 30.7% of residents aged 15+, with advanced diplomas at 11.8% and certificates at 18.9%.

Educational participation is high, with 29.8% of residents currently enrolled in formal education, including 11.4% in primary, 7.0% in secondary, and 4.5% pursuing tertiary education.

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

Leppington has 89 active public transport stops offering a mix of train and bus services. These stops are served by 53 individual routes, collectively facilitating 6,627 weekly passenger trips. Residents enjoy good transport accessibility, typically residing 313 meters from the nearest stop. Primarily residential, most residents commute outward using cars (88%), with trains accounting for 8%. Vehicle ownership averages 1.7 per dwelling, exceeding the regional average. According to the 2021 Census, 39.3% of residents work from home, possibly due to COVID-19 conditions.

Service frequency across all routes averages 946 trips per day, equating to approximately 74 weekly trips per individual stop.

Leppington's residents are extremely healthy with prevalence of common health conditions low among the general population and nearer the nation's average across older, at risk cohorts

Analysis shows strong health metrics throughout Leppington. Mortality rates and chronic condition prevalence were assessed by AreaSearch, with common health conditions found to be low among the general population, nearing national averages for older, at-risk cohorts.

Private health cover was reported by approximately 54% of the total population (around 8,571 people), compared to 59.9% across Greater Sydney. Asthma and arthritis were the most common medical conditions, affecting 5.8% and 5.6% of residents respectively. 79.5% of residents declared themselves completely clear of medical ailments, compared to 74.6% in Greater Sydney. As of 2021, 10.3% of residents were aged 65 and over (1,629 people), lower than the 15.5% in Greater Sydney. Health outcomes among seniors ranked above average but lower nationally compared to the broader population.

Leppington is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Leppington has a high level of cultural diversity, with 40.9% of its population born overseas and 49.9% speaking a language other than English at home. Christianity is the predominant religion in Leppington, comprising 55.1% of the population. However, Islam is significantly overrepresented compared to the Greater Sydney average, making up 14.4% of Leppington's population.

The top three ancestry groups in Leppington are Other (27.3%), Australian (14.1%), and English (11.6%). Notably, Serbian (1.7%) is overrepresented compared to the regional average of 0.5%, as are Croatian (1.6% vs 0.7%) and Lebanese (3.0% vs 2.6%) groups.

Leppington hosts a very young demographic, ranking in the bottom 10% of areas nationwide

Leppington's median age is 32 years, which is younger than Greater Sydney's average of 37 and significantly lower than Australia's national average of 38. Compared to Greater Sydney, Leppington has a higher proportion of residents aged 5-14 (16.7%) but fewer residents aged 55-64 (7.4%). According to post-2021 Census data, the age group of 35-44 has grown from 17.2% to 19.7%, while the 5-14 cohort increased from 14.4% to 16.7%. Conversely, the 25-34 cohort declined from 19.7% to 14.6%, and the 65-74 group dropped from 6.7% to 5.4%. Demographic modeling indicates that Leppington's age profile will change significantly by 2041, with the strongest projected growth in the 45-54 cohort, which is expected to increase by 378%, adding 6,158 residents to reach a total of 7,788.