Introduction

Australia is ageing, but the bigger story is not only about age. It is also about how people may live as they grow older. Population projections show that older Australians will make up a larger share of the population by 2071, while household projections suggest that lone-person households will also become more common.

This five-chart story uses open data from the Australian Bureau of Statistics and the Australian Institute of Health and Welfare to explore a simple but important question: as Australia ages, will more people also be ageing alone?

Each chart includes hover tooltips so readers can inspect exact values, projection scenarios and population groups without overcrowding the visual design.

Chart 1: Australia’s age structure is shifting

Australia’s population is not just growing — it is becoming older. The share of children is projected to fall, while the share of people aged 65 and over is expected to rise by 2071. This matters because an older population changes the demand for health care, housing, transport, community support and aged-care services.

The first chart sets up the story by comparing Australia’s age structure in 2022 with projected low and high scenarios for 2071. It shows that ageing is not a distant or abstract trend. It is a long-term structural change that will reshape the way Australians live.

Chart 2: Lone-person households are expected to grow

Ageing does not happen separately from housing. As Australia’s population changes, the way people live at home is also expected to change. Family households are still projected to remain the most common household type, but lone-person households are also expected to increase by 2046.

This chart adds the household dimension to the story. It compares household type, year and projection scenario to show that the number of people living alone is likely to rise. This raises an important question for policy and planning: are housing, health and community services prepared for a future where more people may not have daily support at home?

Chart 3: By 2046, more than one-quarter of households may be lone-person households

The rise in lone-person households is not only visible in raw numbers. It is also visible as a share of all households. By 2046, lone-person households are projected to make up around one-quarter of Australian households, depending on the projection scenario.

This chart helps show the scale of the issue more clearly. While family households remain the majority, the projected share of lone-person households suggests that living alone will be a normal part of Australia’s future household structure. For an ageing population, this has important implications for housing design, care access and social connection.

Chart 4: Older people living alone are more likely to be women, especially at older ages

Living alone in older age is not experienced evenly across the population. Older women are more likely than older men to live alone, and the difference becomes especially clear among people aged 85 and over. This reflects the gendered nature of ageing, life expectancy and household living arrangements.

This chart looks more closely at who is most affected. By comparing age group, gender and the percentage living alone, it shows that ageing alone is not just a broad population trend. It is also a gendered issue that may require more targeted support for older women, particularly at very old ages.

Chart 5: Living alone is not the same as loneliness, but social isolation is a warning sign

Living alone does not automatically mean someone is lonely. Many people who live alone remain socially connected, independent and supported. However, social isolation and loneliness are important warning signs because they show where the risks of disconnection may already exist.

This final chart connects the housing story to the human impact. It compares social isolation and loneliness indicators across population groups, showing that social disconnection affects a meaningful share of Australians. As more people age and more households consist of one person, the challenge is not simply to provide housing. It is also to build communities where people remain connected.

Conclusion

The data suggests that Australia’s ageing future is also a housing and social connection issue. Older Australians are projected to make up a larger share of the population, and lone-person households are expected to become more common. This does not mean that everyone living alone is lonely, but it does show why planning for housing, health care, community services and social connection will become increasingly important.

The key message is clear: Australia should not only prepare for an older population. It should prepare for an older population where more people may be living without daily support at home.

References

  1. Australian Bureau of Statistics. (2023). Population projections, Australia, 2022 (base) to 2071. ABS.

  2. Australian Bureau of Statistics. (2024). Household and family projections, Australia, 2021 to 2046. ABS.

  3. Australian Institute of Health and Welfare. (2024). Older Australians: Housing and living arrangements. AIHW.

  4. Australian Institute of Health and Welfare. (2024). Social isolation and loneliness. AIHW.

Acknowledgement of generative AI use

Generative AI tools were used to support the preparation of this article outline. ChatGPT was used to support topic brainstorming, story structure planning and wording refinement for R/RMarkdown code. The final topic selection, data source checking, visualisation decisions, R code execution, interpretation of results, and assignment submission were completed by the student. All data sources used in the visualisations are acknowledged and referenced.