Although the release of 2021 Census data is gaining a lot of media attention, the ABS also released updated population estimates at the same time. This new data presents rebased estimates that are tied to the 2021 Census. It is part of the five year cycle of population estimates produced by the ABS - once the current estimates are finalised, the next rebasing will occur after the 2026 Census. What does this new data tell us about Australia's population in 2021?