New Lambton (NSW)

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According to analysis of ABS population updates for the wider region and new address data validated by Districts since the Census, the resident count for the suburb of New Lambton is estimated at 10,909 as of May 2026. This represents an expansion of 258 individuals (2.4%) relative to the 2021 Census, which documented 10,651 residents. The growth is calculated using the resident total of 10,870 estimated by Districts from the latest ABS ERP release (June 2025) plus 62 validated new addresses recorded since the Census. This population corresponds to a density of 1,806 individuals per square kilometer, exceeding the typical figure for national locations analyzed by Districts. The post-Census expansion rate of 2.4% in the suburb of New Lambton is within 2.5 percentage points of the Rest of NSW (4.9%), indicating competitive local growth dynamics. Overseas migration was the primary driver of this demographic expansion, accounting for approximately 72.0% of the overall population gains in recent times.

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The suburb of New Lambton is characterized by a highly educated workforce with strong representation in essential services, alongside an unemployment rate of only 2.5%, according to Districts statistical aggregations. As of March 2026, there are 6,115 employed residents, with the unemployment rate tracking 1.6% below the Regional NSW average of 4.1%. Workforce participation stands well above typical levels at 69.6%, compared to 60.6% in Regional NSW. Census data indicates that a high proportion of employed residents, at 29.7%, worked from home, though this figure may reflect the influence of pandemic-related restrictions.

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According to Districts aggregations of postcode-level ATO statistics released for the 2023 financial year, taxpayers in the suburb of New Lambton registered a median income of $57,131 and an average income of $76,054. These figures exceed the national averages and compare to regional benchmarks of $52,390 (median) and $65,215 (average) across Regional NSW. Adjusting for Wage Price Index growth of 10.32% since the 2023 financial year yields estimated values of approximately $63,027 (median) and $83,903 (average) as of March 2026. Data from the 2021 Census places household, family, and personal incomes in the 62nd percentile nationally. Income distribution shows the largest cohort comprises 29.1% of residents (3,174 individuals) earning in the $1,500 - 2,999 range, mirroring metropolitan trends where of households fall into this bracket. High housing costs account for of income, though robust earnings keep disposable income at the th percentile, and the SEIFA index ranks the area in the th decile for income.

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Residential architecture in the suburb of New Lambton at the time of the last Census consisted of 77.9% standalone houses and 22.0% alternative dwellings, such as semi-detached homes and apartments, compared to 82.6% houses and 17.4% alternative dwellings across Regional NSW. Home ownership rates in the suburb of New Lambton trailed the regional average at 35.6%, with the remaining properties occupied by mortgaged owners (33.7%) or tenants (30.7%). The median monthly mortgage payment of $2,058 was considerably higher than the Regional NSW average of $1,733, while the median weekly rent stood at $395 compared to the regional figure of $330. On a national level, mortgage costs exceed the Australian average of $1,863, and rental costs are higher than the national benchmark of $375.

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Families make up 66.0% of local households, consisting of couples with children at 30.1%, couples without children at 22.3%, and single-parent households at 12.4%. The remaining 34.0% consist of non-family households, with single-person households representing 29.7% and group shared households making up 4.1% of the total. The median household size of 2.4 residents aligns with the average for Regional NSW.

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Qualifications in the suburb of New Lambton are substantially higher than regional benchmarks, with 35.2% of residents aged 15 and over holding a university degree, compared to 21.3% in the Rest of NSW and 26.1% in the broader SA4 region. This educational profile positions the community well for professional opportunities. Bachelor degrees represent the most common higher qualification at 23.5%, followed by postgraduate degrees at 8.2% and graduate diplomas at 3.5%. Technical and vocational training is also common, with 32.9% of the population aged 15 and over holding vocational qualifications, comprising advanced diplomas at 10.9% and certificates at 22.0%.

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Public transport systems in the suburb of New Lambton include 110 active transit stops offering a combination of train and bus services. These stops support 70 separate routes, delivering a total of 2,725 weekly passenger journeys. Accessibility is high, with residents living an average of 120 meters from the nearest stop. Due to the residential nature of the area, most workers commute out of the suburb, and private vehicles remain the primary mode of travel for 90% of commuters. Car ownership averages 1.3 vehicles per household, which is below the regional average. A high proportion of residents, at 29.7%, work from home according to the 2021 Census, which may reflect the influence of pandemic conditions.

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Based on Districts assessments of mortality rates and the prevalence of chronic illnesses, health indicators point to below-average outcomes, with common health concerns observed among both younger and older cohorts. Private health insurance coverage is high, with approximately 57% of the population (~6,214 individuals) holding cover, compared to 51.9% across Regional NSW.

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The suburb of New Lambton exhibits below-average cultural diversity, with 87.6% of residents born in Australia, 92.0% holding citizenship, and 92.1% speaking only English at home. The predominant religious affiliation is Christianity, accounting for 51.2% of residents. The most pronounced religious overrepresentation is observed in Judaism, which accounts for 0.1% of the population, matching the 0.1% average across Regional NSW.

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The median age in the suburb of New Lambton is 41 years, which is slightly younger than the Regional NSW average of 43 years but above the national median of 38 years. The 15 to 24 age bracket is well represented at 13.4% compared to Regional NSW, while the 75 to 84 cohort is smaller at 6.1%. Since the 2021 Census, the proportion of residents aged 25 to 34 has increased from 11.0% to 12.3%, whereas the 45 to 54 group has decreased from 14.3% to 12.9% and the 5 to 14 cohort has declined from 13.7% to 12.3%. Projections suggest that the age profile will change by with the to group forecast to grow the fastest, expanding by to add residents and reach a total of . Conversely, declines are expected in the to and to age cohorts.

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New Lambton currently has an estimated 599 children under 5 years old, comprising approximately 359 children aged 0-2 and 239 children aged 3-4. This cohort grew by an estimated 17% since the previous census. while population forecasts indicate future growth, with an anticipated increase of 11% by 2041 (to approximately 662 children). Meanwhile the 5-12 cohort currently amounts to 1,039. While growth has been positive birth rates observed in the area have been moderate, with approximately 9.1 births per 1,000 residents recorded over the latest two-year period analysed which ranks the area within the middle tier nationally. This rate has slowed down slightly in recent years however.