SNHN's 9 LGAs have grown by +0.89% p.a. since 2001 — but the ageing curve is steeper. The share aged 65+ has climbed from 13.86% in 2001 to 17.56% in 2024 — a +3.7pp shift over two decades. Underneath the catchment number, the variance between LGAs is dramatic.
Each line is one of SNHN's 9 LGAs; the bold line is the whole catchment. Hover to read off the year. Click a legend entry to dim it.
Each 5-year ERP age band, totalled across all 9 SNHN LGAs. The 65+ band is highlighted — it's 17.56% of the catchment, or about 163,588 people.
The catchment line is bold. Where individual LGA lines diverge from it, the commissioning priorities differ.
Dependency ratio = (children 0-14 + seniors 65+) ÷ working-age 15-64, per 100. A rising number means the working-age share is shrinking relative to dependents — direct planning signal for aged care, paediatric services, and tax-base health.
Ageing index = (seniors 65+) ÷ (children 0-14) × 100. A value of 100 means equal numbers of children and seniors; above 100 means more seniors than children. SNHN crossed 100 well before the national average.
Each card: population today (ERP latest), growth, age structure shorthand, and a sparkline of population since 2001.
Source data and processing:
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