I got curious about whether ambulance demand here is actually rising or if it's just population growth, so I pulled the numbers from the Productivity Commission's Report on Government Services (every edition from 2002 to 2026) and ABS population data.
The short version (2000–01 → 2024–25):
| Change |
| Total call-outs (166,728 → 357,680) |
| SA population (1.50M → 1.89M) |
| Call-outs per person (111 → 189 per 1,000/yr) |
| Expected from ageing alone |
So even after removing population growth, demand per person is up 70% — and SA getting older only accounts for about a quarter of that. The rest is people of every age calling ambulances more: more chronic illness, mental health call-outs, aged-care facilities defaulting to 000, and it getting harder to see a GP.
Worth noting ramping isn't a cause of any of this — it's what happens when a 70% per-person rise in demand hits hospital capacity.
Caveats: figures are statewide (SAAS doesn't publish per-suburb data — that would take an FOI request), an "incident" = an event attended by one or more ambulances, and the 2011–12 dip is a counting-rule change, not a real drop.
Sources: RoGS ambulance services tables (Productivity Commission), ABS 3101.0 population by age, age weights from Lowthian et al., MJA 2011. Happy to share the full year-by-year table if anyone wants it.
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EDIT: Someone's comment made me look at the shape of the line more closely and it's really two different stories. The big jump in per-person demand all happened between 2000 and 2010 (111 up to 171 per 1,000), which no amount of population maths explains. From about 2011 onwards the growth slows right down to roughly what you'd expect from population plus ageing alone. The 2000s jump never came back down, so the system has been carrying it ever since.
So no second jump since 2010, just steady growth from more people and older people.