This day aims to raise awareness about concerns such as family planning, gender equality, maternal health, poverty, and human rights, especially as population growth impacts sustainable development.
It was established by the United Nations Development Programme (UNDP) in 1989.
The "Five Billion Day" was observed on July 11, 1987, when the global population hit five billion.
Theme for 2025 is "Empowering young people to create the families they want in a fair and hopeful world."