Global Christianity

Test Your Knowledge

GRAPHIC • Dec. 19, 2011

How much do you know about Christianity around the world?

Test your knowledge with our short, 10-question quiz. Questions are based on findings from the Pew Forum’s Global Christianity report on the size and distribution of the global Christian population in 2010 and are not intended to test knowledge of Christian beliefs and practices.

Some of the questions are fairly difficult and the correct answers may surprise you. When you finish the quiz, explore the full report, interactive maps and sortable tables -- then take the quiz again to see how much you’ve learned!

1. How many Christians are there in the world today?
About 1.2 billion
About 2.2 billion
About 3.2 billion

2. What share of all Christians around the world are Catholics?
About two-thirds (66%)
About half (50%)
About a third (33%)
About a quarter (25%)
About one-in-ten (10%)

3. Which country has more Catholics?
United States
Brazil
Poland
Italy

4. Which country has more Protestants?
United States
Germany
Nigeria
Indonesia

5. Which country has more Orthodox Christians?
United States
Greece
Egypt
Russia

6. Which of these regions has the most Christians of all kinds?
The Americas (North America, South America and the Caribbean combined)
Europe (both Western Europe and Eastern Europe, including all of Russia)
Sub-Saharan Africa (Africa below the Sahara Desert)

7. What proportion of the world’s total population is Christian today?
About two-thirds (66%)
About half (50%)
About a third (33%)
About a quarter (25%)
About one-in-ten (10%)

8. What proportion of the world’s total population was Christian 100 years ago?
About two-thirds (66%)
About half (50%)
About a third (33%)
About a quarter (25%)
About one-in-ten (10%)

9. What proportion of the world’s Christians live in Europe today?
About two-thirds (66%)
About half (50%)
About a third (33%)
About a quarter (25%)
About one-in-ten (10%)

10. What proportion of the world’s Christians lived in Europe a century ago?
About two-thirds (66%)
About half (50%)
About a third (33%)
About a quarter (25%)
About one-in-ten (10%)