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
Sports in North America North America. Among the major events, the US Open, one of the four Grand Slam events, is held annually at the USTA Billie Jean King National Tennis Center in New York City. The Women's Tennis Association, the principal organizing body of women's professional tennis, is headquartered in St. Petersburg, Florida. Tennis Canada, the Central American & Caribbean Tennis Confederation, and the United States Tennis Association are the regional member organizations of the International Tennis Federation, and help organize various events in their respective areas of North America. Sports in North America There is a wide variety of organized sports in