Puerto Rico ( or ; , ), officially the Commonwealth of Puerto Rico (, literally the "Free Associated State of Puerto Rico"), is a United States territory located in the northeastern Caribbean. Puerto Rico is an archipelago that includes the main island of Puerto Rico and a number of smaller islands. The capital and largest city is San Juan. The territory does not observe daylight saving time, and its official languages are Spanish, which is predominant, and English. The island's population is approximately 3.4 million.