Made In Canarias Postcrossing Blog

As an unincorporated territory of the United States, Puerto Rico does not have any first order administrative divisions as defined by the U.S. Government, but there are 78 municipalities at the secondary level which function as counties. Each municipality has a mayor and a municipal legislature elected for four year terms. The first municipality (previously called "town") of Puerto Rico, San Juan, was founded in 1521. ( source ) Thank you Emy!

Puerto Rico , officially the Commonwealth of Puerto Rico is an unincorporated territory of the United States, located in the northeastern Caribbean Sea. Puerto Rico (Spanish for "rich port") is composed of an archipelago that includes the main island of Puerto Rico and a number of smaller islands. The main island of Puerto Rico is the smallest by land area of the Greater Antilles. It, however, ranks third in population among that group of four islands, which also include Cuba, Hispaniola, and Jamaica. ( source ) Thank you Adita232!