US States Zip Directory 2026

Browse Zip Codes by State




Currently We have more than 42735 Records of US States Zip Codes from all over the United States!

Details of 00959 Zip Code



Detail Info for 00959 Zip Code U.S Zip Info
Zip Code : 00959
Type : STANDARD
City : Bayamon
State : PR
County : Bayamon Municipio
Acceptable Cities:
UnAcceptable Cities: Alt De Flamboyan, Alt Del Rio, Bda Pesquera, Bo Cerro Gordo, Bo Hato Tejas, Colinas Vista Alegre, Ext Forest Hls, Ext Hnas Davila, Ext La Milagrosa, Ext Villa Rica, Flamboyan Gardens, Ind Minillas, Jard De Caparra, Parc Juan Sanchez, Parq De Torrimar, Parq Flamingo, Parq San Miguel, Parq Valencia, Qtas De Flamingo, Qtas Del Norte, Repto Davila, Repto Flamingo, Repto Rivera, Repto Valencia, Urb Altos De Torrimar, Urb Braulio Dueno, Urb Casa Linda Ct, Urb Flamboyan Gardens, Urb Flamboyan Gdns, Urb Forest Hls, Urb Hnas Davila, Urb La Milagrosa, Urb Las Americas, Urb Riberas Del Rio, Urb Riviera Court, Urb Riviera Village, Urb San Rafael Est, Urb San Rafael Est Ii, Urb Santa Rosa, Urb Tortuguero, Urb Versalles, Urb Victoria Hts, Villa Betania, Villa De San Agustin, Villa Del Rio Bayamon, Villa Rica, Villa Verde, Villas De Caparra, Villas De San Miguel, Vista Alegre
Time Zone : America/Puerto_Rico
Area Codes : 787, 939
Latitute : 18,39
Longitude : -66,15
 US ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a region (0-9), the next two signify a sectional center facility, and the last two pinpoint a local post office. A 4-digit extension ("+4") is often used for specific delivery routes.
Key Details About US ZIP Codes
Structure: 5 digits (e.g., 90210) or ZIP+4 (e.g., 90210-1234).
Purpose: The Zone Improvement Plan (ZIP) system allows the USPS to automatically route mail more efficiently.
Geographic Breakdown:
1st Digit: Represents a group of states (e.g., 0=Northeast, 9=West).
2nd/3rd Digits: Represent a regional area or large city.
4th/5th Digits: Identify specific post offices or delivery areas.
Ranges by State: For example, California is 900-961, while New York is 005 and 100-149.
Usage: They are essential for accurate mail delivery, navigation, and location-based services.

Map of 00959


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, 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.


ZIP codes designate only delivery points within the United States and its dependencies, as well as locations of its armed forces. There are no ZIP codes reserved for designating mail bound for foreign destinations (with the exception of U.S. military units stationed outside of the United States), and therefore, international outbound mail should not include a ZIP code in the delivery address. The last line of a foreign address must only show the name of the country of destination.