Rhode Island is the smallest state by land area in the USA, and the state with the longest official name. It covers an area of approximately 1,214 square miles (3,144 km²) and is bordered on the north and east by Massachusetts, on the west by Connecticut, and on the south by Rhode Island Sound and the Atlantic Ocean. Rhode Island has a higher percentage of Americans of Portuguese ancestry (who dominate Bristol County), including Portuguese Americans and Cape Verdean Americans than any other state in the nation. Additionally, the state also has the highest percentage of Liberian immigrants, with more than 15,000 residing.