Grantham Farm (NSW)

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Based on research of ABS demographic releases for the wider region alongside newly verified locations confirmed by Districts post-Census, the suburb of Grantham Farm has a projected population of approximately 5,567 as of May 2026. This represents a rise of 1,898 people (51.7%) from the 2021 Census, which registered a headcount of 3,669 people. This shift is derived from a resident headcount of 5,108, estimated by Districts using the ABS June 2025 ERP data release, plus an additional 477 validated new addresses registered since the Census. Such a population size represents a density of 1,537 persons per square kilometer, exceeding the typical ratio found across national locales evaluated by Districts. The 51.7% expansion rate in the suburb of Grantham Farm since the 2021 census outpaced the state (7.1%) and Greater Sydney, establishing it as a regional growth leader. Population expansion here was mainly propelled by domestic relocations from other states, which accounted for roughly of total demographic gains in recent times, though all growth components including natural increases and arrivals from overseas remained positive contributors.

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Grantham Farm is characterized by a highly qualified labor force, with strong numbers working in professional services, and an unemployment rate of just 3.2% according to Districts compilations of statistical area datasets. As of March 2026, there are 2,685 local citizens in employment, with the unemployment rate sitting 0.9% below the Greater Sydney average of 4.1%, while workforce participation is exceptionally high (75.1% compared to 69.1% across Greater Sydney). Census figures show that a high 45.3% of workers performed their duties from home, although this should be viewed in light of Covid-19 lockdown restrictions.

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The suburb of Grantham Farm records a median taxpayer income of $78,851 and an average of $93,110 according to the most recent postcode-level ATO records compiled by Districts for financial year 2023. This is exceptionally high on a national scale, comparing to a median of $60,817 and an average of $83,003 in Greater Sydney. Factoring in Wage Price Index growth of 10.32% since financial year 2023, updated projections indicate values of approximately $86,988 (median) and $102,719 (average) as of March 2026. Data from the 2021 Census reveals that household, family, and individual incomes all rank highly, placing between the 88th and 91st percentiles nationwide. The records show the $1,500 - 2,999 bracket is the most common, accounting for 45.5% of residents ( people), which resembles regional distributions where fall into this range. The high percentage of top earners ( exceeding /week) shows substantial financial strength across the community. Large housing outlays absorb of earnings, yet strong wages keep disposable funds at the th percentile, and the area's SEIFA index ranking sits in the th decile.

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The residential profile of Grantham Farm at the time of the latest Census consisted of 99.7% houses and 0.3% other dwellings (comprising semi-detached homes, apartments, and alternative structures), compared to the Sydney metro profile of 55.9% houses and 44.1% other dwellings. At the same time, the rate of outright home ownership in Grantham Farm was behind the Sydney metro benchmark at 6.5%, with the rest of the occupied properties held under a mortgage (63.0%) or rented (30.5%). The median monthly mortgage payment in the locality was significantly higher than the Sydney metro average at $2,700, while the median weekly rental cost was recorded at $540, compared to Sydney metro averages of $2,427 and $470. On a national scale, mortgage commitments in Grantham Farm are much higher than the Australian median of $1,863, while weekly rents exceed the national benchmark of $375 by a wide margin.

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Family units constitute the vast majority of households at 89.3%, consisting of 56.6% couples with children, 21.5% couples without children, and 9.4% single parent households. Non-family households account for the remaining 10.7%, with single person homes at 9.0% and group households representing 1.8% of the total. The median household occupancy of 3.2 people is larger than the Greater Sydney average of 2.7.

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Academic credentials in Grantham Farm are significantly higher than wider averages, with 44.5% of residents aged 15+ holding tertiary degrees compared to 30.4% in Australia and 32.2% across NSW. This pronounced academic tilt positions the locality well for knowledge-sector employment. Bachelor degrees are the most common qualification at 28.5%, followed by postgraduate degrees (13.3%) and graduate diplomas (2.7%). Practical and vocational skills are also well represented, with 30.8% of residents aged 15+ holding technical qualifications, split between advanced diplomas (11.9%) and certificates (18.9%).

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Public transit analysis shows 22 active transit stops in Grantham Farm, consisting of a bus network. These stops are served by 12 distinct routes, which combine to offer 1,180 weekly passenger journeys. Transit access is classified as good, with residents living an average of 312 meters from their closest stop. Because the area is mostly residential, the majority of workers commute to other areas, with private vehicles being the primary mode of travel at 81%, and 15% using trains. Household vehicle ownership averages 1.6 per home, which is above the regional average. A high 45.3% of workers operated from home (2021 Census; potentially reflecting COVID-19 conditions).

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Medical outcomes data shows excellent results in Grantham Farm based on Districts' evaluation of mortality patterns and chronic ailment rates, showing very low rates of common health problems across all age brackets, while the rate of private health insurance is exceptionally high at roughly 64% of the total population (3,543 people). This compares to 59.9% throughout Greater Sydney and a national average of 55.7%.

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Grantham Farm has a high level of cultural diversity, with 43.3% of its population born overseas and 44.3% speaking a non-English language at home. Christianity is the main religion, accounting for 48.4% of local residents. However, the most pronounced religious concentration relative to wider benchmarks is Hinduism, which represents 18.6% of the population, considerably higher than the Greater Sydney average of 5.2%.

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With a median age of 31 years, Grantham Farm's population is noticeably younger than the Greater Sydney median of 37 and the national median of 38. Compared to Greater Sydney, Grantham Farm has a larger share of residents aged 35 - 44 (23.1%) but fewer aged 65 - 74 (2.5%). This 35 - 44 cohort is substantially higher than the national average of 14.3%. Since 2021, the 35 to 44 age cohort has expanded from 20.3% to 23.1% of the population, while the 5 to 14 age group increased from 14.1% to 16.5%. Conversely, the to age bracket declined from to and the to cohort decreased from to . Projections indicate Grantham Farm's age profile will shift considerably by with the to cohort expected to grow by people () from to .

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Grantham Farm currently has an estimated 629 children under 5 years old, comprising approximately 305 children aged 0-2 and 203 children aged 3-4. This cohort grew by an estimated 28% since the previous census. while population forecasts indicate future growth, with an anticipated increase of 92% by 2041 (to approximately 1,210 children). Meanwhile the 5-12 cohort currently amounts to 733. Recent growth has been driven by high birth rates observed in the area, with approximately 17.9 births per 1,000 residents recorded over the latest two-year period analysed which ranks the area among the top 20% of areas assessed nationally.