Firle (SA)

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According to evaluations of ABS demographics data for the wider region, combined with new address validations performed by Districts after the Census, the suburb of Firle has an estimated resident count of 1,644 as of May 2026. This represents a rise of 136 people (9.0%) from the 2021 Census, which registered 1,508 people. The estimate is derived from a resident baseline of 1,632, calculated by Districts using the latest ABS ERP release (June 2025) plus 26 validated new addresses added since the Census. This population level translates to a density of 2,651 persons per square kilometer, placing the suburb of Firle in the highest quartile among domestic locations evaluated by Districts. The 9.0% expansion recorded in the suburb of Firle since the 2021 census was greater than the state average (7.5%) and the Greater Adelaide region, making it a regional growth leader. Population increases were heavily supported by international migration, which acted as almost the exclusive driver of demographic gains in recent times.

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The local labor pool in Firle is highly qualified, with strong representation from key service industries, an unemployment rate of 4.5%, and a yearly increase in employment estimated at 5.1% using Districts statistical area aggregations. In March 2026, there were 889 employed locals, while the jobless rate stood at 0.7% higher than the Greater Adelaide level of 3.8%. The labor participation rate matches the Greater Adelaide benchmark of 66.6% closely. Census records show that only 11.8% of employed residents worked from home, though this figure may be colored by Covid-19 restrictions.

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Based on the most recent postcode-level ATO records compiled by Districts for financial year 2023, tax-paying residents in the suburb of Firle registered a median income of $51,256 and an average of $70,707. These figures exceed the national averages, whereas Greater Adelaide recorded a median income of $54,808 and an average of $66,852. Factoring in Wage Price Index growth of 10.17% since financial year 2023, current estimates correspond to roughly $56,469 for the median and $77,898 for the average as of March 2026. The 2021 Census indicates that household, family, and individual incomes are moderate, placing between the 35th and 35th percentiles. The data shows that the weekly income bracket of $1,500 - 2,999 is the most common, accounting for 30.9% of residents (507 people), which is very close to the regional share of . Financial strain from housing is significant, with only of income left over after housing costs, ranking in the nd percentile, while the SEIFA index for income places the area in the th decile.

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Residential architecture in Firle at the time of the last Census consisted of 65.2% standalone houses and 34.8% alternative dwellings (such as semi-detached homes, units, or other options), compared to 75.2% houses and 24.9% other dwellings across metropolitan Adelaide. Home ownership rates in Firle were identical to the Adelaide metropolitan benchmark at 31.9%, while the remaining properties were either held with a mortgage (30.7%) or occupied by tenants (37.4%). The median monthly mortgage payment in the area was recorded at $2,000, which is higher than the Adelaide metropolitan average of $1,562, while the median weekly rent was $350 compared to the Adelaide metropolitan figure of $320. On a national scale, mortgage payments in Firle exceed the Australian average of $1,863, whereas rental costs remain below the national benchmark of $375.

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Families make up the majority of households at 65.3%, consisting of couples with children (27.6%), couples without children (24.7%), and single parent households (11.7%). The remaining 34.7% consists of non-family households, which are dominated by single-person households at 30.3% and shared houses at 4.5%. The median household size of 2.4 residents is slightly below the Greater Adelaide average of 2.5.

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Qualifications among residents in Firle are high compared to regional benchmarks, with 40.7% of residents aged 15+ holding a tertiary degree, compared to 25.7% across SA and 28.9% in Greater Adelaide. This educational profile positions the suburb well for professional opportunities. Bachelor degrees are the most common credential at 25.1%, followed by postgraduate degrees at 12.4% and graduate diplomas at 3.2%. Technical and vocational training is also well represented, with 25.1% of residents aged 15+ holding vocational qualifications, split between advanced diplomas (9.6%) and certificates (15.5%).

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Public transit options in Firle include 13 operational transit stops, consisting of various bus options. These locations are serviced by 16 different routes, which support 867 passenger journeys each week. Access to transit is highly rated, with residents situated an average of 131 meters from the nearest stop. The suburb is primarily residential, and the majority of workers travel outside the area for employment, with private cars remaining the primary choice at 82% and buses accounting for 10%. Household vehicle numbers average 1.2 per dwelling, which is below the regional average. A small proportion of residents (11.8%) worked from home, according to the 2021 Census, which may have been influenced by COVID-19 settings.

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Health profiles in Firle are positive, with Districts evaluations of mortality and long-term illnesses showing low rates of common health problems across both younger and older demographics. The rate of private health insurance is high, covering approximately 55% of the community (~903 people), compared to 52.7% across Greater Adelaide.

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Firle exhibits a high degree of cultural diversity, with 40.9% of its residents born outside of Australia and 42.4% using a language other than English in their homes. Christianity is the primary religious affiliation, representing 49.8% of the local population. The most prominent overrepresentation is in the Other category, which accounts for 2.3% of residents compared to 1.8% across Greater Adelaide.

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The median age of residents in Firle is 38, which is very close to the Greater Adelaide median of 39 and matches the national average of 38. Compared to Greater Adelaide, the suburb has a higher share of people aged 35 - 44 (16.8% of the population) and a lower share of people aged 65 - 74 (7.9%). Since 2021, the 35 to 44 age bracket has risen from 15.0% to 16.8% of the population, while the 45 to 54 bracket has decreased from 11.9% to 10.9%. Projections indicate that the demographic profile will shift by 2041, with the 35 to 44 age group expected to grow by 51 people () from to .

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Firle currently has an estimated 90 children under 5 years old, comprising approximately 48 children aged 0-2 and 33 children aged 3-4. This cohort grew by an estimated 14% since the previous census. while population forecasts indicate future growth, with an anticipated increase of 11% by 2041 (to approximately 100 children). Meanwhile the 5-12 cohort currently amounts to 132. While growth has been positive birth rates observed in the area have been moderate, with approximately 9.7 births per 1,000 residents recorded over the latest two-year period analysed which ranks the area within the middle tier nationally.