Do you know that in Uganda, 50% of the population is under 15 years of age? Yeah, its a real true fact about Uganda’s population. The Uganda’s gender ratio is pretty even, but half the population sitting on 14 years of a 65+ year lifespan is a massive boom. The Ugandan life expectancy is only around 52 years in part & according to comparison, only 20.2% of US inhabitants (not citizens) are under 15, with 67% between 15 and 64, and 12.8% being 65 and over.