Clapham (SA)

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According to evaluations of ABS population updates for the wider region and new address datasets verified by Districts since the Census, the suburb of Clapham has a population estimated at 1,684 as of May 2026. This represents a decline of 1 people (0.1%) from the 2021 Census, which counted 1,685 individuals. The transition is determined from the resident headcount of 1,684, calculated by Districts using the newest ABS ERP figures (June 2025) along with 1 verified new addresses since the Census. This population level translates to a density of 2,187 persons per square kilometer, exceeding the typical ratio across nationwide sites assessed by Districts. Inflow from abroad was the main catalyst for local population increases, representing almost the entire source of growth recently.

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Clapham possesses a highly qualified workforce with substantial representation in professional services, a jobless rate of only 0.5%, and an estimated 5.0% increase in jobs over the past year, according to Districts analysis of regional data. As of March 2026, 1,029 residents are employed, and the local unemployment rate is 3.3% lower than the Greater Adelaide level of 3.8%. Labor force participation is also exceptionally high, reaching 75.2% compared to 66.6% across Greater Adelaide. Census records show a moderate 15.9% of the workforce worked from home, though the influence of Covid-19 restrictions should be kept in mind.

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The newest postcode-level ATO statistics from Districts for financial year 2023 show that taxpayer incomes in Clapham rank in the top percentile nationwide, featuring a median of $62,927 and an average of $99,469. This stands in contrast to the Greater Adelaide median of $54,808 and average of $66,852. Adjusting for a Wage Price Index rise of 10.17% since financial year 2023, current estimates correspond to approximately $69,327 for the median and $109,585 for the average as of March 2026. Data from the 2021 Census reveals that household, family, and individual incomes in Clapham are positioned between the 81st and 84th percentiles nationally. Looking at income distribution, the weekly wage bracket of $1,500 - 2,999 contains 28.7% of residents ( individuals), which is close to the regional representation of . The suburb shows high affluence, with of residents earning more than weekly, which helps sustain premium retail and service businesses. After paying for housing, residents keep of their income, showing strong purchasing capacity, and the area is placed in the th decile of the SEIFA index.

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The mix of housing in Clapham at the last Census consisted of 88.1% separate houses and 11.8% alternative dwellings like semi-detached homes, units, or other options, compared to Adelaide metro's breakdown of 75.2% houses and 24.9% other properties. Home ownership rates in Clapham were much higher than the metropolitan average at 39.4%, while the remaining homes were held under a mortgage (44.6%) or rented (16.1%). The median monthly home loan repayment of $2,167 was far higher than the Adelaide metro average of $1,562, and the median weekly rent was $395 compared to the metropolitan average of $320. Nationally, mortgage costs in Clapham are much higher than the Australian median of $1,863, and weekly rents also exceed the national median of $375.

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Families make up the bulk of households at 76.4%, consisting of couples with children (40.2%), couples without children (25.6%), and single-parent homes (10.3%). Non-family living arrangements account for the other 23.6%, with lone person households representing 20.5% and group households accounting for 2.9%. The median household size of 2.7 residents is higher than the Greater Adelaide average of 2.5.

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Educational qualifications in Clapham are considerably higher than regional averages, with 44.8% of residents aged 15+ holding a university degree, compared to 25.7% in SA and 28.1% across the SA4 region. This education gap supports local readiness for knowledge-industry roles. Undergraduate degrees are held by 29.9% of residents, followed by postgraduate degrees (10.0%) and graduate diplomas (4.9%). Vocational training is also common, with 26.3% of residents aged 15+ holding trade credentials, consisting of advanced diplomas (11.3%) and certificates (15.0%).

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Analysis of transit options shows 6 active stops operating in Clapham, which consist of bus services. These stops connect to 8 different routes, which support 547 weekly passenger journeys. Accessibility is high, with residents living an average of 202 meters from their nearest transit stop. Because the area is mostly residential, most workers commute out of the suburb, with private cars being the main transport mode at 86%, while 4% of residents cycle. Vehicle ownership averages 1.6 cars per home, which is higher than the regional average. About 15.9% of residents worked from home during the 2021 Census, which may reflect pandemic-related conditions.

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Health statistics show excellent outcomes in Clapham, according to Districts evaluations of mortality and chronic disease trends, which reveal a very low rate of common medical conditions across all age groups. Private health insurance coverage is exceptionally high, covering approximately 66% of the population (1,114 people), compared to 52.7% across Greater Adelaide and a national average of 55.7%.

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Clapham exhibits below-average cultural diversity, with 82.9% of residents born in Australia, 93.5% holding citizenship, and 88.5% speaking only English at home. Christianity is the dominant religion, practiced by 42.1% of residents. The most noticeable religious overrepresentation is Judaism, which accounts for 0.2% of the population, compared to 0.1% across Greater Adelaide.

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With a median age of 42, Clapham is slightly older than Greater Adelaide at 39 and is older than the national median of 38. The 45 - 54 demographic is highly represented at 13.7% compared to Greater Adelaide, while the 25 - 34 cohort is smaller at 10.0%. Since the 2021 Census, the 75 to 84 cohort grew from 5.4% to 8.2% of the population, and the 15 to 24 group rose from 10.4% to 11.9%. Meanwhile, the 5 to 14 cohort shrank from 14.4% to 13.1%, and the 55 to 64 bracket fell from to . Demographic models suggest the age structure of the suburb of Clapham will change noticeably by . The + cohort is projected to lead this shift, growing by ( people) to reach from a base of . This aging trend is clear, with residents aged + accounting for of the projected growth, while the to and to demographics are expected to shrink.

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Clapham currently has an estimated 97 children under 5 years old, comprising approximately 40 children aged 0-2 and 26 children aged 3-4. This cohort grew by an estimated 5% since the previous census. though population forecasts indicate future decline, with an anticipated decrease of 4% by 2041 (to approximately 93 children). Meanwhile the 5-12 cohort currently amounts to 163. While growth has been positive birth rates observed in the area have been low, with approximately 7.6 births per 1,000 residents recorded over the latest two-year period analysed which ranks the area among the bottom 20% of areas assessed nationally.