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
Watford City, North Dakota Watford City, North Dakota Watford City (Hidatsa: abaʔaruʔush), founded in 1914, is a city in and the county seat of McKenzie County, North Dakota, United States. The population was 1,744 at the 2010 census. and the Census Bureau gave the 2017 estimated population as 6,523, making Watford City the twelfth largest city in North Dakota. Because Watford City is part of the Bakken field, the North Dakota oil boom has significantly increased population and construction since the 2010 census. The main offices of Frontier Energy Group, First International Bank, and the headquarters of McKenzie Electric Cooperative are in Watford City.