Median Age — methodology

What this metric measures

The age at which half the resident population is older and half is younger, derived each quarter from estimated resident population by single year of age.

Why it matters: An ageing population changes the demand for health and aged care, the size of the workforce, and the tax base that funds both.

Source & provenance

Publisher

Derived from ABS quarterly estimated resident population by single year of age (Cat. 3101.0)

Update frequency

quarterly

Licence

CC BY 4.0

How the score is computed

The score is a 0–100 normalisation of the latest observation, compared to a baseline window. The traffic-light rating (RAG) reflects both the absolute level and the recent trend.

Direction

Context-dependent

Trend window

24 months

Baseline

Last 10 years

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  "neutral": true
}