Population Reference Bureau

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World Population Data Sheet 2011

The World at 7 Billion: A PRB Interactive Map 

Which countries will grow the most by 2050? Where is infant mortality highest? How does contraceptive prevalence vary worldwide? Find the answers in PRB's interactive map. Browse through 17 indicators organized in six tabs, ranging from life expectancy, HIV/AIDS, family planning, poverty, and more. You can easily embed the map on your blog or website.

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Interactive Map

2011 World Population Data Sheet

2011 World Population Data Sheet

The 2011 World Population Data Sheet offers detailed information on 18 population, health, and environment indicators for more than 200 countries. This year’s data include: HIV/AIDS Prevalence, People Living Below $2/day, and Access to Improved Water Supply.

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In this webinar recorded on July 28, 2011, PRB demographers Carl Haub, James Gribble, and Linda Jacobsen present key findings from the 2011 World Population Data Sheet.

Video: 7 Billion and Counting

Global population trends result from varying levels of population growth and decline among countries. This informative video provides a simple and compelling overview of population trends that have created a world of 7 billion people.

It took all of human history to reach a world population of 1.6 billion in 1900. By 2000, it was 6.1 billion. How did this change happen? The answer lies in the demographic transition—the shifts in birth and death rates that historically have occurred over long periods of time—and how differently it has taken place in developed and developing countries. More | PDF

The Demographic Transition

  • Uganda

    High Birth Rate, Fluctuating Death Rate

    Due to lower mortality but still high fertility, Uganda has a very youthful age structure. Countries at the beginning of their demographic transition face similar development challenges.

  • Guatemala

    Declining Birth and Death Rates

    As a lower middle-income country, Guatemala is well-advanced in its demographic transition, with recent reductions in its birth rate. Its population is still relatively young.

  • India

    Approaching Replacement-Level Fertility

    Phase 3 countries like India have fertility rates that have declined from previously high levels but have not reached the population-stabilizing "replacement level" of 2.1 children per woman.

  • Germany

    Low or Very Low Birth and Death Rates

    Germany is a dramatic example of the fourth phase of demographic transition: Countries with low birth and death rates represent almost half of the world's population.