North America million, though Cuba, Dominican Republic, Haiti, Puerto Rico (a territory of the United States), Jamaica, and Trinidad and Tobago each have populations higher than a million. Greenland has a small population of 55,984 for its massive size (2,166,000 km² or 836,300 mi²), and therefore, it has the world's lowest population density at 0.026 pop./km² (0.067 pop./mi²). While the United States, Canada, and Mexico maintain the largest populations, large city populations are not restricted to those nations. There are also large cities in the Caribbean. The largest cities in North America, by far, are Mexico City and New York. These cities
North America alongside English. Christianity is the largest religion in the United States, Canada and Mexico. According to a 2012 Pew Research Center survey, 77% of the population considered themselves Christians. Christianity also is the predominant religion in the 23 dependent territories in North America. The United States has the largest Christian population in the world, with nearly 247 million Christians (70%), although other countries have higher percentages of Christians among their populations. Mexico has the world's second largest number of Catholics, surpassed only by Brazil. A 2015 study estimates about 493,000 Christian believers from a Muslim background in North America, most