Australia’s total fertility rate was 1.481 babies per woman in 2024, the lowest since at least 1975 and down from 1.917 in 2011. The fall is concentrated among women under 35.
Between 2011 and 2026 the number of Australians aged 75 to 79 rose 86% while children under five rose 3.2%. The median age went from 37.2 to 38.5 and the most common single age from 39 to 31.