The Empire of Mexico (Span: Imperio de Mexico or Imperio Mexicano), more commonly referred to as Mexico, is a North American nation located south of the United States and north of Honduras. It is one of the largest countries in the world, with a population of 150,000,000 as of 2005, and the third largest country in the Western Hemisphere (behind United States at 345,000,000 and Brazil at 195,000,000). The capital of Mexico is Mexico City (Ciudad de Mexico), which is also the largest city in the world. The primary language of Mexico is Spanish, and the dominant religion is Roman Catholicism.