Suburb report · SA 5159
Happy Valley
Prepared by the property strategists at Chase Wealth Australia
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Population
11,892
Happy Valley suburb profile
Who lives in Happy Valley
Happy Valley is 17km out from central Adelaide, part of its established middle ring. Happy Valley is home to 11,892 people, a scale matched by fewer than 3% of South Australian suburbs. Among the 340 suburbs within 40km of the Adelaide CBD, it ranks 9 by population. The median age of 42 is close to the 41 of a typical South Australian suburb. Of the 340 suburbs within 40km of the Adelaide CBD, 206 have a younger median age. That is 2 years older than the average of 40 in the other suburb of the Happy Valley statistical area.
Income and home ownership
Median household income is $88,700, close to the $88,600 of a typical South Australian suburb. That matches the average of $87,900 in the other suburb of the Happy Valley statistical area. On household income it ranks 197 of 340 suburbs within 40km of the Adelaide CBD. Owner-occupiers dominate: 88.4% of households own their home and just 11.6% rent. 35 of the 340 suburbs within 40km of the Adelaide CBD have a higher ownership share. That is 6.6 points above the 81.8% ownership share in the other suburb of the Happy Valley statistical area.
Household mix
The 2021 Census counted 4,464 occupied private dwellings in Happy Valley, one of the larger housing stocks in South Australia. Families with children are the largest household type at 43.4%, ahead of couples without children at 31.5% and people living alone at 23.9%. On the share of families with children it ranks 153 of 340 suburbs within 40km of the Adelaide CBD. Few South Australian suburbs have fewer group households: 1.3% of households, at the 9th percentile. At 31.5%, couples without children are more common here than in 77% of South Australian suburbs. In the other 1 suburb of the Happy Valley statistical area, families with children make up 45.3% of households, against 43.4% here.
Housing supply
Approvals held steady across the Happy Valley statistical area: 28 in the year to June 2025, against its 2020 to 2024 average of 29 a year. Supply figures here are for the Happy Valley statistical area, home to 14,526 residents in 2025, which takes in Happy Valley and neighbouring suburbs. Per head of population the pipeline is thin: 1.9 approvals per 1,000 residents of that area against 5.2 for the median South Australian area. The busiest year for approvals since 2020 was 2020, with 36, and the quietest was 2024, with 19.
Population trend
The population of the Happy Valley statistical area grew 4.2% from 2020 to 2025, against 6.3% for South Australia as a whole. The median South Australian statistical area grew 4.8% over the same 5 years, 0.6 points faster than this one. That rate is faster than 45% of South Australian statistical areas. Growth was strongest in the year to 2023 (1.6%) and weakest in the year to 2021 (0.1%).
Against its neighbours
Of the nearby suburbs listed below, Flagstaff Hill differs most on the median household income: $116,100 there against $88,700 in Happy Valley. Aberfoyle Park matches Happy Valley on the median age, at 42. Woodcroft sits 4km away, with a median household income of $95,200 against $88,700 here.
Location
Demographics
ABS Data by Region to 2025, on ABS Census 2021 suburb baselineHousehold Mix Census 2021
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Reading this report
Every figure in the Happy Valley data table is dated at its source. Supply and population change cover the Happy Valley statistical area, whose boundary differs from Happy Valley's, and our guide to reading a suburb report explains how our buyers agents weigh them.
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This report is market intelligence prepared by Chase Wealth Australia for general information only. Figures are statistical estimates for the suburb, not valuations of any individual property, and do not constitute financial or credit advice. Consider your circumstances and seek professional advice before acting. Demographic figures are sourced from the Australian Bureau of Statistics, Census 2021 (licensed CC BY 4.0) where available.