Population Reference Bureau – Inform, Empower, Advance

International: Percent of Population Living in Urban Areas

Urbanization is a global trend. The United Nations projects that 66 percent of the world’s population will live in urban areas by 2050, up from 54 percent currently and only 30 percent in 1950.

March 22, 2018

United States: Percent of the Population Under Age 18

For the United States that number is 22.8%.

March 5, 2018

International: Population mid-2017

The world population at mid-2017 was an estimated 7.5 billion. Of that total, Africa accounted for 1.3 billion people, compared with 1 billion in the Americas, 3.1 billion in Asia, 745 million in Europe (which includes all of Russia), and 42 million for Oceana (which includes Australia and New Zealand). The most populous country was China with 1.4 billion people.

March 19, 2018

United States Indicators

PRB’s U.S. Programs conducts research and analyses on U.S. demographic, social, economic, and health trends. We inform decisionmakers, educators, journalists, and concerned citizens about these changing trends and their implications for important public policies.

View U.S. Indicators

International Data

Every year, PRB provides the latest demographic data for the world, global regions, and more than 200 countries and territories in our World Population Data Sheet. In this section, access all the Data Sheet indicators and export data and images.

View International Data

2017 World Population Data Sheet

This microsite provides a more-detailed view on international indicators plus digital features on the annual Data Sheet theme.

View 2017 Interactive Datasheet