Blackwood (SA)

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Analysis of ABS population updates for the wider region and new address datasets verified by Districts after the Census indicates that the suburb of Blackwood (SA) has an estimated population of 4,381 in May 2026. This represents a growth of 115 residents (2.7%) from the 4,266 individuals counted during the 2021 Census. This adjustment is calculated from an estimated resident base of 4,377 calculated by Districts using the latest ABS ERP release from June 2025 alongside 9 new addresses confirmed since Census night. The population level results in a density of 1,048 persons per square kilometer, which aligns closely with typical values calculated by Districts across monitored locations. The 2.7% post-census growth of the suburb of Blackwood (SA) is within 2.9 percentage points of the broader SA3 region (5.6%), showing competitive local demand drivers. Overseas migration was the primary contributor to local growth, accounting for approximately 55% of population increases, with natural increase and interstate movements also contributing positively.

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The local workforce shows high levels of educational attainment and strong representation in key service industries, alongside an unemployment rate of only 1.4% and an estimated 4.6% increase in jobs over the past year based on statistical area figures aggregated by Districts. In March 2026, employed residents numbered 2,432, while the local unemployment rate sat 2.4% below the Greater Adelaide average of 3.8%. Labor force participation matches the Greater Adelaide average of 66.6%. Census data indicates a moderate 18.3% of the workforce performed their roles from home, although these figures may reflect the influence of pandemic lockdowns.

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Based on ATO records compiled by Districts for financial year 2023, personal income levels in the suburb of Blackwood are close to the national median. Taxpayers in the suburb of Blackwood recorded a median income of $54,389 and an average income of $67,856, compared to Greater Adelaide values of $54,808 and $66,852. Factoring in Wage Price Index growth of 10.17% since financial year 2023, estimates for March 2026 would rise to approximately $59,920 for median and $74,757 for average incomes. The 2021 Census placed household, family, and individual incomes in Blackwood around the 54th percentile nationally. The $1,500 - $2,999 weekly income bracket is the most common, accounting for 28.6% of residents (1,252 people), compared to 31.8% of the population across the wider region. Residents retain of their income after meeting housing costs, indicating high disposable income, and the area is positioned in the th decile for the SEIFA income index.

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According to the most recent Census data, the residential make-up in Blackwood consisted of 80.0% houses alongside 20.0% alternative dwellings such as semi-detached units, apartments, and other housing types, which contrasts with Adelaide metro’s composition of 75.2% houses and 24.9% other dwellings. Home ownership in Blackwood stood significantly higher than in Adelaide metro, reaching 43.3%, while the rest of the housing stock was allocated between mortgaged units at 41.3% and rented properties at 15.4%. The area’s median monthly mortgage payment exceeded the Adelaide metro mean by $1,733, whereas the median weekly rent was $330, compared to Adelaide metro’s respective figures of $1,562 and $320. On a national scale, Blackwood’s mortgage repayments fall beneath the Australian average of $1,863, and rental costs are considerably lower than the national benchmark of $375.

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Family units constitute 69.5% of all households, consisting of 30.6% couples with children, 28.5% couples without children, and 9.4% single-parent households. Non-family households account for 30.5% of the total, with lone person households representing 28.4% and group living situations representing 1.8%. The median household size is 2.4 residents, which is slightly lower than the Greater Adelaide average of 2.5.

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Residents holding university degrees comprise 42.4% of the population aged 15+, which is significantly higher than the 25.7% recorded across SA and the 28.1% across the SA4 region. This high concentration of tertiary qualifications positions the local workforce well for knowledge-based employment. Bachelor degrees are the most common qualification at 25.4%, followed by postgraduate degrees at 11.3% and graduate diplomas at 5.7%. Vocational education is also common, with 28.5% of residents aged 15+ holding a qualification, including 10.5% with advanced diplomas and 18.0% with certificates.

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Public transport services in Blackwood include 32 active stops providing access to trains and buses. These stops accommodate 31 distinct routes that provide a combined total of 954 passenger trips every week. Accessibility is good, with residents living an average of 279 meters from their nearest transit stop. Given the residential nature of the suburb, most workers commute out of the area, with private cars remaining the primary transport mode at 84% and trains accounting for 8%. Households own an average of 1.4 vehicles. In the 2021 Census, 18.3% of workers operated from home, which may reflect pandemic-era working arrangements.

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Districts evaluations of mortality rates and chronic disease frequency indicate that Blackwood has positive health metrics, with low rates of common illnesses across both younger and older cohorts. Private health insurance coverage is slightly higher than the SA2 average, held by approximately 54% of the population (~2,357 people).

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Cultural diversity metrics in Blackwood align closely with regional averages, with 78.1% of residents born in Australia, 93.6% holding citizenship, and 92.0% speaking only English in their homes. Christianity is the largest religious group, representing 35.3% of the community. The most notable religious variance is in Judaism, which accounts for 0.1% of the population, matching the 0.1% average across Greater Adelaide.

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The median age in Blackwood is 45 years, which is older than the Greater Adelaide average of 39 and the national median of 38. The 75 - 84 cohort has a strong presence at 9.0% compared to Greater Adelaide, while the 25 - 34 age group is smaller at 8.8%. Data collected since the 2021 Census shows the 15 to 24 age bracket increased from 10.1% to 12.0% of the population, and the 85+ bracket grew from 3.2% to 4.5%, while the 65 to 74 group fell from 12.7% to 11.4%. Demographic models indicate the local age profile will shift by 2041. The + cohort is projected to grow by , adding residents to reach whereas the number of residents aged to is projected to decrease by .

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Blackwood currently has an estimated 210 children under 5 years old, comprising approximately 130 children aged 0-2 and 87 children aged 3-4. This cohort declined by an estimated 1% since the previous census. though population forecasts indicate future growth, with an anticipated increase of 9% by 2041 (to approximately 228 children). Meanwhile the 5-12 cohort currently amounts to 439. Birth rates in the area have averaged 8.6 per 1,000 residents over the latest two-year period, a moderate rate (within the middle tier nationally). This rate has slowed down slightly in recent years however.