# Demographics & Identity — South Australia

Who lives here — how many people, how old they are, and how communities identify.

Area: South Australia (State / Territory)

A growing population that has aged by two years since 2011 defines South Australia. The state now has 1,781,516 people, and the typical resident is 41, making it noticeably older than the national figure.

The population grew by 12% since 2011, adding about 184,944 people. At 41 years old, the typical resident is much older than those in most other similar areas.

Aboriginal and Torres Strait Islander people make up 2.4% of the population, which is lower than most other areas. People in de facto relationships account for 11.2% of the population, a slight increase from 2011.

Seniors make up 20.0% of the population, which is a little above the national figure and a rise of 3.9 points since 2011. This shift toward older residents is matched by a drop in children under 15, who now make up 17.0% of the community.

## Statistics

| Statistic | Value | Change since |
| --- | --- | --- |
| Total population | 1,781,516 | +11.6% since 2011 |
| Median age | 41 yrs | +5.1% since 2011 |
| Aboriginal & Torres Strait Islander population | 2.4% | +25.3% since 2011 |
| People aged 65 and over | 20.0% | +24.0% since 2011 |
| Children under 15 | 17.0% | -5.3% since 2011 |
| People in a de facto relationship | 11.2% | +16.9% since 2011 |

**Age structure** — Young adults (25–44) 25.9%, Older adults (45–64) 25.4%, Seniors (65+) 20.0%, Children (0–14) 17.0%, Youth (15–24) 11.7%

**Marital status** — Married 46.1%, Never married 35.4%, Divorced 9.5%, Widowed 5.7%, Separated 3.2%

Interactive: https://censusatlas.au/region/ste/4/south-australia/topic/demographics-identity