The country which has the highest percentage of Catholics is the Vatican City - the percentage is at 100!
The population in Florida in 2006 was 18,090,000, and the percentage of Catholics in that year was 12.7% for a total Catholic population in 2006 of 2,297,430. (Figures for Florida population from U.S. Population by State, 1790 to 2011 website, figure for Catholic percentage from article in the Examiner on the 2010 Census result.)
By percentage, Vatican City is the biggest catholic country in the world (which is ironic since it is the smallest country in the world). 100% of its citizens are Catholic. By population, Brazil is the largest, with about 123 million Catholics.
In 2007, 17% of the world's population was Catholic.
The figures are as follows : Total Population --> 4,861,000Catholic Population --> 660,000Percentage --> 13.58%
The country with the largest Catholic percentage of the population is Vatican City, at 100%.
Asia has the largest percentage of the world's population, 59.69% of the world's population. Africa is second at 16.36%.
According to catholic-hierchy.org, there are 1,152,884,000 in the world.
The Catholic Statistics for the diocese of Boise City list the population as 11% Catholic, see link below.
The percentage of families with dogs in the world is 73%.
Timbuktu is 99% Muslim, so the Catholic population is very small, less than 1%.
The percentage of the world population that lives in the western hemisphere is between 15 and 20. The population of the Americas is approximately 930 million, or 13% of the world's population.