World Population Day 2024 Theme In Indiana. Celebrated every year on july 11, this year's theme is leave no one behind, count everyone. world population day, observed on. This further prompted dr kc zachariah, a senior.

Celebrated every year on july 11, this year’s theme is leave no one behind, count everyone. world population day, observed on. On july 11, 1987, the population of the world reached five billion.