Population

Population measures the total number of people living in a defined area according to the latest available data. It follows a de facto definition, meaning it counts all residents present in a country regardless of their legal status. This indicator is vital for understanding demographic shifts and allocating public resources effectively across 215 tracked countries.

India currently has the highest population in the world, with recent estimates showing approximately 1.45 billion people. This significant demographic scale makes it a major global driver of economic and social trends. Such a large population requires extensive infrastructure and complex governance to manage resources and provide essential public services for its residents.

Tuvalu has the lowest population among the countries and territories tracked, with latest estimates recording approximately 9,646 residents. Small population sizes often present unique economic challenges, such as limited domestic markets and a higher reliance on international trade. This figure reflects the demographic reality of several small island nations in the Pacific region.

Population is calculated by combining national census data with administrative records on births, deaths, and migration. Because full counts are infrequent, international organizations use statistical modeling to provide annual midyear estimates. These models adjust for demographic changes to ensure that the reported figures remain accurate between official census cycles across different global regions.