Anguilla is a British overseas territory between the Caribbean Sea and North Atlantic Ocean, east of Puerto Rico. A flat and low-lying island of coral and limestone, Anguilla covers an area of approximately 96 sq km and has 61 km of coastline. The Valley is the capital, with a time difference of 4 hours behind that of GMT. The currency is the East Caribbean dollar, and exports include fish, lobsters and salt. The population of approximately 14,400 people comprises an ethnic makeup that is 90% black. The primary language is English, and the predominant religion is Christianity.