Crystal Brook (SA)

Crystal Brook is positioned among the lower quartile of areas assessed nationally for population growth based on AreaSearch's assessment of recent, and medium term trends

As of Feb 2026, the estimated population of the suburb of Crystal Brook (SA) is around 1,606. This reflects an increase of 69 people since the 2021 Census, which reported a population of 1,537 people. The change was inferred from AreaSearch's estimation of the resident population at 1,553 following examination of the latest ERP data release by the ABS in June 2024, and an additional 31 validated new addresses since the Census date. This level of population equates to a density ratio of 8.3 persons per square kilometer. The suburb's growth rate of 4.5% since the 2021 census exceeded the SA3 area's growth rate of 4.4%. Population growth for the area was primarily driven by interstate migration.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered and years post-2032, SA State Government's Regional/LGA projections are adopted with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Considering projected demographic shifts, the area is expected to grow by 48 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 0.9% in total over the 17 years.

AreaSearch assessment of residential development drivers sees a low level of activity in Crystal Brook, placing the area among the bottom 25% of areas assessed nationally

Crystal Brook has averaged approximately five new dwelling approvals annually over the past five financial years, totalling an estimated twenty-five homes. As of FY-26, four approvals have been recorded. The average population increase per year for each dwelling built in the area between FY-21 and FY-25 is 0.8 people. The average construction value of new properties is $265,000.

In FY-26, there have been $1.6 million in commercial approvals. Compared to the Rest of SA, Crystal Brook has 63.0% more construction activity per person. Recent development has consisted entirely of detached houses, maintaining the area's low density nature and attracting space-seeking buyers. The estimated population count per dwelling approval is 447 people. Population forecasts indicate an increase of fifteen residents by 2041.

Current construction levels should meet demand adequately, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Crystal Brook has limited levels of nearby infrastructure activity, ranking in the 16thth percentile nationally

No changes can significantly impact a region's performance like modifications to local infrastructure, major projects, and planning initiatives. AreaSearch has identified zero projects that could potentially affect this area. Notable projects include Green Iron SA Port Pirie Hub, Northern Water, Mid North South Australia REZ Expansion, and SA Public Housing Maintenance and Services Contracts. The following list outlines those most likely to be relevant.

Professional plan users can use the search below to filter and access additional projects.

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The labour market performance in Crystal Brook lags significantly behind most other regions nationally

Crystal Brook has a balanced workforce with equal representation of white and blue collar jobs. Essential services sectors are well-represented in the area. As of September 2025, the unemployment rate is 5.8%.

This rate has remained stable over the past year, according to AreaSearch's statistical aggregation. Compared to Rest of SA, Crystal Brook's unemployment rate is 0.5% higher at 5.3%, and workforce participation is lower at 52.5% compared to Rest of SA's 58.5%. Census data shows that only 8.7% of residents work from home, though Covid-19 lockdown impacts should be considered. The leading employment industries among Crystal Brook residents are health care & social assistance, education & training, and agriculture, forestry & fishing.

Health care & social assistance has a particularly notable concentration with employment levels at 1.6 times the regional average. However, agriculture, forestry & fishing has limited presence with 9.7% employment compared to 14.5% regionally. The area appears to offer limited local employment opportunities as indicated by the count of Census working population versus resident population. Over a 12-month period ending in May-25, employment increased by 0.3% while the labour force grew by 2.0%, causing the unemployment rate to rise by 1.7 percentage points. In contrast, Rest of SA saw employment rise by 0.3%, the labour force grow by 2.3%, and unemployment rise by 1.9 percentage points. National employment forecasts from Jobs and Skills Australia project national employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Crystal Brook's employment mix suggests local employment should increase by 6.4% over five years and 13.7% over ten years, though this is a simple weighting extrapolation for illustrative purposes and does not account for localized population projections.

The area's income levels rank in the lower 15% nationally based on AreaSearch comparative data

AreaSearch's latest postcode level ATO data for financial year 2023 shows Crystal Brook had a median taxpayer income of $47,687 and an average of $57,910. Both figures are below the national averages. The Rest of SA had a median of $48,920 and an average of $58,933 during this period. Based on Wage Price Index growth of 8.8% since financial year 2023, current estimates for Crystal Brook would be approximately $51,883 (median) and $63,006 (average) as of September 2025. Census 2021 income data indicates that incomes in Crystal Brook fall between the 3rd and 7th percentiles nationally across household, family, and personal levels. Income distribution shows 32.3% of residents earning $400 - 799, differing from broader areas where $1,500 - 2,999 is predominant at 27.5%. Economic circumstances reveal widespread financial pressure with 40.2% of households having weekly budgets below $800. Despite modest housing costs allowing for 88.8% income retention, total disposable income ranks at the 7th percentile nationally.

Crystal Brook is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

In Crystal Brook, as per the latest Census, 92.1% of dwellings were houses while 7.9% consisted of other types such as semi-detached homes, apartments, and others. This compares to Non-Metro SA's figures of 88.5% houses and 11.5% other dwellings. Home ownership in Crystal Brook stood at 46.0%, with the rest being mortgaged (31.5%) or rented (22.5%). The median monthly mortgage repayment was $975, lower than Non-Metro SA's average of $1,153 and significantly below the national average of $1,863. The median weekly rent in Crystal Brook was $189, compared to Non-Metro SA's $220 and substantially lower than the national figure of $375.

Crystal Brook features high concentrations of lone person households, with a fairly typical median household size

Family households account for 65.1% of all households, including 23.5% couples with children, 31.7% couples without children, and 9.1% single parent families. Non-family households make up the remaining 34.9%, with lone person households at 33.1% and group households comprising 1.3% of the total. The median household size is 2.3 people, which matches the average for the Rest of South Africa.

Educational outcomes in Crystal Brook fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment

The area's university qualification rate is 15.2%, significantly lower than Australia's average of 30.4%. Bachelor degrees are the most common at 11.7%, followed by graduate diplomas (1.9%) and postgraduate qualifications (1.6%). Vocational credentials are prevalent, with 38.5% of residents aged 15+ holding them - advanced diplomas at 10.1% and certificates at 28.4%. Educational participation is high, with 26.1% currently enrolled in formal education.

This includes 12.6% in primary, 7.6% in secondary, and 1.6% in tertiary education.

No public transport data available for this catchment area.

Health performance in Crystal Brook is well below average with prevalence of common health conditions notable across both younger and older age cohorts

Crystal Brook faces significant health challenges, as indicated by AreaSearch's assessment of mortality rates and chronic condition prevalence. Notably high prevalence was observed across both younger and older age cohorts.

Private health cover is relatively low, with approximately 50% (801 people) covered compared to the national average of 55.7%. The most prevalent medical conditions are arthritis (11.4%) and mental health issues (10.3%). Conversely, 57.4% of residents claim to be completely free from medical ailments, lower than the Rest of SA's 62.5%. Working-age population health is particularly challenging due to elevated chronic condition rates. The area has a higher proportion of seniors aged 65 and over (30.4%, or 488 people) compared to Rest of SA at 27.1%. Senior health outcomes, while presenting some challenges, generally align with national rankings.

The latest Census data sees Crystal Brook placing among the least culturally diverse areas in the country when compared across a range of language and cultural background related metrics

Crystal Brook's cultural diversity was found to be below average, with 92.3% of its population born in Australia, 93.4% being citizens, and 97.7% speaking English only at home. Christianity was the predominant religion in Crystal Brook, accounting for 49.3% of people, compared to 45.2% across Rest of SA. The top three ancestry groups were Australian (34.7%), English (33.3%), and Scottish (8.5%).

Notably, Dutch ethnicity was overrepresented at 2.7%, compared to the regional average of 1.3%. Similarly, German ethnicity stood at 7.0% in Crystal Brook versus 8.2% regionally, and Welsh ethnicity was slightly higher at 0.7% compared to the regional figure of 0.5%.

Crystal Brook hosts an older demographic, ranking in the top quartile nationwide

Crystal Brook has a median age of 49, which is higher than the Rest of SA figure of 47 and substantially exceeds the national norm of 38. Compared to Rest of SA, Crystal Brook has a higher concentration of 75-84 residents (11.1%) but fewer 45-54 year-olds (9.2%). Between the 2016 and 2021 Census, the 15 to 24 age group grew from 6.8% to 9.2%, while the 75 to 84 cohort increased from 10.0% to 11.1%. Conversely, the 5 to 14 cohort declined from 14.1% to 12.5%, and the 0 to 4 group dropped from 5.8% to 4.5%. Looking ahead to 2041, demographic projections reveal significant shifts in Crystal Brook's age structure. The 85+ group is projected to grow by 103% (74 people), reaching 147 from 72. Those aged 65 and above will comprise 78% of the projected growth, while both the 0 to 4 and 15 to 24 age groups are expected to decrease in number.