Is puerto rico part of america?

The people of Puerto Rico are United States citizens. They can vote in U.S. presidential primaries. Puerto Rico contributes more soldiers to the U.S. armed services per capita than any state. Puerto Ricans can travel freely from Puerto Rico to the mainland and back, as can the U.S. citizens in any state. read more

Puerto Rico. Puerto Rico[a] (Spanish for "Rich Port"), officially the Commonwealth of Puerto Rico (Spanish: Estado Libre Asociado de Puerto Rico, lit. "Free Associated State of Puerto Rico")[b] and briefly called Porto Rico,[c][16][17][18] is an unincorporated territory of the United States located in the northeast Caribbean Sea. read more