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U.S. ZIP Codes Database 2026

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ZIP Code 00957 Details

Comprehensive geographic and administrative breakdown for postal code 00957.

Postal Information

ZIP Code 00957
Type Standard
Primary City Bayamon
State PR
Acceptable Cities -
Unacceptable Alt De Cana, Alt De Sans Souci, Bda Calderon, Bo Los Angeles, Colinas De Bayoan, Est De Cerro Gordo, Ext Rexville, Parc Van Scoy, Urb Alhambra, Urb Bayamon Gdns, Urb Bella Vista, Urb Cana, Urb Flamingo Hls, Urb Flamingo Ter, Urb Los Dominicos, Urb May Fair, Urb Miraflores, Urb Montanez, Urb Panorama, Urb Panorama Estates, Urb Panorama Vlg, Urb Patio De Rexville, Urb Rexville, Urb Royal Gdns, Urb San Fernando, Urb Sans Souci, Urb Santa Catalina, Urb Santa Elena, Urb Santa Elenita, Urb Santa Monica, Urb Sierra Linda, Valle De Cerro Gordo, Villa Arrieta, Vista Alta
Time Zone America/Puerto_Rico
Area Codes 787, 939
Latitude 18,37° N
Longitude -66,19° W

About U.S. ZIP Codes

U.S. ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a broad region, the next two identify a sectional center facility, and the final two help pinpoint a local post office or delivery area.

Geographic Breakdown:

  • 1st Digit: Represents a group of states or a broad national region.
  • 2nd/3rd Digits: Represent a regional area or large city.
  • 4th/5th Digits: Identify specific post offices or delivery zones.

ZIP Codes support physical delivery, routing analytics, geocoding, tax calculations, and location-based research.

Geographic Map of ZIP Code 00957

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.