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Society · Guess the stat

How well do you know the world's Muslim population?

Guess the real numbers behind the world's Muslim population, see how everyone else guessed, and get the source.

Guess the statOne tap · see how everyone guessed

Between 2010 and 2020, which major religious group grew the fastest worldwide?

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Muslims gathered inside a mosque for prayer, showing unity and devotion in Islamic practice.
Photo: Mohammed Alim / Pexels
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Today's round

  • 4 stats to guess
  • 1 opinion poll
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Guess, see the crowd, get the real number. One ranked attempt per day.

Muslim by the numbers

Real figures with their sources. All Muslim facts →

about 347 million more

About how many more Muslims were there worldwide in 2020 compared with 2010?

Meanwhile Buddhists were the only major group to see an absolute decline over the same decade.

Source: Pew Research Center (2020) pewresearch.org

Asia-Pacific (about 1.2 billion)

Which region is home to the largest number of Muslims?

Countries like Indonesia and Pakistan give the Asia-Pacific region the world's largest Muslim populations.

Source: Pew Research Center (2020) pewresearch.org

about 2.1% (8.1 million people)

By 2050, the US Muslim population is projected to reach about what share of the country?

Pew projects Muslims will surpass Jews as the second-largest US religious group after Christians by 2040.

Source: Pew Research Center (2018) pewresearch.org

What people think about Muslims worldwide and in the United States — population, growth and demographics

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What would you most like to learn more about regarding Muslim communities?

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Do you personally know someone who is Muslim?

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Which topic interests you most about world religions?

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Questions

How does MuslimSurvey.com work?

Each question asks you to guess a real number about Muslims worldwide and in the United States — population, growth and demographics. After you answer you see how everyone else guessed, then the real figure and where it comes from.

How is the daily round scored?

Four stats and one opinion poll. A correct guess earns 100 points plus up to 50 for speed, with a combo bonus for answers in a row. The range next to the right answer earns 40. Opinion polls earn 25 for having your say, and nailing every stat adds 150.

Where do the numbers come from?

Every stat links to its source, such as government statistics agencies, research organizations and industry groups. Figures are checked against the source before they go live.

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