Postal codes in Puerto Rico

Puerto Rico

Puerto Rico , officially the Commonwealth of Puerto Rico , is an unincorporated territory of the United States, located in the northeastern Caribbean, east of the Dominican Republic and west of both the United States Virgin Islands and the British Virgin Islands.Puerto Rico comprises an...

are part of the 5 digit numeric US ZIP code system.

Puerto Rico, a US Territory, uses 006XX for NW PR, 007XX for SE PR, in which XX designates the town or post office & 009XX for the San Juan Metropolitan Area, in which XX designates the area or borough of San Juan

San Juan, Puerto Rico

San Juan , officially Municipio de la Ciudad Capital San Juan Bautista , is the capital and most populous municipality in Puerto Rico, an unincorporated territory of the United States. As of the 2010 census, it had a population of 395,326 making it the 46th-largest city under the jurisdiction of...

. The last four digits identify an area within the post office. For example 00716-2604: 00716-for the east section of the city of Ponce

Ponce, Puerto Rico

Ponce is both a city and a municipality in the southern part of Puerto Rico. The city is the seat of the municipal government.The city of Ponce, the fourth most populated in Puerto Rico, and the most populated outside of the San Juan metropolitan area, is named for Juan Ponce de León y Loayza, the...

 and 2604 for Aceitillo St. in the neighborhood of Los Caobos. US Post office is changing the PR address format to the US one: 1234 No Name Avenue, San Juan, PR 00901.