List of cities from MAUNABO's county

BO CALZADA	BO PALO SECO
BRISAS DE EMAJAGUAS	EXT CALIMANO
JARD LOS ALMENDROS	MAUNABO
URB SAN PEDRO	VILLA ALEGRE
VILLAS DE MAUNABO	VILLAS DEL FARO

What is ZIP Code?

ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan,[1] is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the code in the postal address. The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the ZIP code, a hyphen, and four more digits that determine a more precise location than the ZIP code alone. The term ZIP code was originally registered as a servicemark (a type of trademark) by the U.S. Postal Service, but its registration has since expired