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In 2026, Australia's population is projected at 27,227,096. That is a 3-fold increase on the 8,176,750 recorded in 1950. It is growing modestly, at +0.91% a year, adding about 248K people a year. With only 4 people/km², it is one of the world's more sparsely settled countries. Half the population is younger than 38.5 years, and the age structure is steadily tilting older: the median is projected to reach 42.0 by 2050. The sexes are close to evenly balanced, at 99 males per 100 females. By 2100, UN projections see it rising to 43,143,685, up 58% from 2026.
Total population
27,227,096
Density
4 people/km²
Median age
38.5 years
Growth rate
+0.91%
Australia's population continues to grow, though at a moderate pace. The population is gradually aging, with median age projected to reach 42 by 2050 (up from 39 in 2026). Population density is low at 4 people per km². UN projections show continued growth to 43.1M by 2100.