Australia's population is ageing and as baby boomers move into old age this trend is set to gather greater momentum over the next three decades. Significant changes will flow to all aspects of social and economic life as both the number and proportion of older people in the community increase. This fourth edition of Older Australians at a glance provides insights into the diversity of the older population of Australia, where they are living, what they are doing, how healthy they are and the services they are using. In 2011 the Department of Health and Ageing asked the AIHW to update tables and figures for three sections of the report: Section 1 - Demographic profile; Section 2 - Social and economic context; and Section 5 – Special population groups. These tables and figures can be found on the additional material tab on this web page. There is no accompanying analysis of the data presented in this material.