World Population 2024. In an analysis of 236 countries and territories around the world, 40 were estimated to have shrinking populations, with some experiencing a decline of 1 percent a year, or more. China will beef up its 2.88 trillion yuan ($406 billion) social security fund, making it bigger and stronger to help support its rapidly ageing population as the number of new births.

It presents population estimates from the 1950s to. Click on the name of the country or dependency for current estimates (live.