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U.S. ZIP Codes Database 2026

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ZIP Code 00646 Details

Comprehensive geographic and administrative breakdown for postal code 00646.

Postal Information

ZIP Code 00646
Type Standard
Primary City Dorado
State PR
County Dorado Municipio
Acceptable Cities -
Unacceptable Bo Arenal, Bo Higuillar, Bo Saldinera, Bosque Dorado, Brighton Country Club, Chalets De Dorado, Comunidad Arenales, Comunidad Arenales Ii, Hacienda Mi Querido Viejo, Jard De Dorado, Jard Dorado, Parc El Cotto, Parc Mameyal, Parc San Antonio, Paseo Del Mar, Paseo Del Sol, Paseo Las Olas, Paseo Las Palmas, Paseo Los Corales, Paseo Los Corales Ii, Paseo Real, Qtas De Dorado, Ritz Carlton Reserve, Sect La Aldea, Urb Costa De Oro, Urb Dorado Country Ests, Urb Dorado Del Mar, Urb Dorado Reef, Urb Doraville, Urb Gables Breeze, Urb Golden Hls, Urb Isla De Las Flores, Urb Laguna 1, Urb Laguna 2, Urb Los Montes, Urb Los Prados Norte, Urb Los Prados Sur, Urb Martorell, Urb Miraflores, Urb Molinos Del Rio, Urb Monte Bello, Urb Monte Elena, Urb Monte Mayor, Urb Monte Verde, Urb Montelindo, Urb Montereal, Urb Paisajes De Dorado, Urb Palmar Dorado Norte, Urb Palmar Dorado Sur, Urb Sabanera Dorado, Urb Santa Barbara, Urb The Clusters, Urb The Estates, Valle Dorado, VILLA 2000, Villa Plata, Villa Santa, Villa Santa Ii
Time Zone America/Puerto_Rico
Area Codes 787, 939
Latitude 18,47° N
Longitude -66,27° 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 00646

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.