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 third edition of Older Australia at a Glance provides insights into the diversity of the older population of Australia at the beginning of the 21st century, where they are living, what they are doing, how healthy they are and the services they are using.