Along with their associated islands, the Americas cover 8% of Earth's total surface area and 28.4% of its land area.. The largest country in North America is Canada, followed by the United States. Mexico has coastlines on the Gulf of Mexico and the Pacific Ocean. Area: 0.44 sq. Having so many peninsulas, and the region itself being a peninsula of Eurasia, means a wealth of coastline on its … Tristan da Cunha is one of the smallest inhabited islands. North America Population Smallest Countries Rhode Island is the smallest state in size in the United States. The United States is the 4th largest country on earth, and the third most populous country. It is a total of 2,000 miles away from any other inhabited area of land. The water area includes inland waters, coastal waters, the Great Lakes and territorial waters. Read more. These are some of the world's most biodiverse and culturally rich … Rhode Island was the last of the original thirteen colonies to become a state. The USA is amongst the most visited countries in North America, where New York City is one of the major … The eastern wild turkey is traditionally recognized as the "Thanksgiving turkey" enjoyed by early … Smallest inhabited islands Wild Turkey Subspecies in North America (With Smallest Top 100 smallest countries by area. With a country as large as the United States, there are bound to be some towns with only a handful of residents. miles and houses only 1000 people. Official Listing of Countries by The United States is the fourth largest country in the world, based on square mileage of 3,618,783.