Between 1951 and 2023, Pakistan's population expanded over sevenfold, going from 33.7 million to 241.5 million. The country has a relatively high, although declining, growth rate supported by high birth rates and low death rates. Between 1998 and 2017, the average annual population growth rate stood at +2.40%.

Dramatic social changes have led to urbanization and the emergence of two megacities: Karachi and Lahore. The country's