3. Brazil
Total Mormon population in the country: 1,289,376
While there were only around 200 members in the country in 1940, the population rose to nearly 20,000 people by 1965. By 1985, the country had over 200,000 members and the rate has not fallen since. It exceeded the 1 million mark back in 2010, making it only the third country in the world to host over a million Mormons.
