San Juan Zip Code

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San Juan, the vibrant capital of Puerto Rico, is a complex urban landscape with a fascinating postal system that reflects its rich diversity. San Juan encompasses 36 unique ZIP codes, spanning various neighborhoods and districts across the metropolitan area. These ZIP codes range from 00901 to 00976, each telling a unique story about the city’s geographical and administrative divisions.

Understanding San Juan’s Postal Landscape

Puerto Rico, as part of the United States Postal Service (USPS) network, uses a comprehensive ZIP code system that provides precise location information. San Juan alone utilizes approximately 20% of Puerto Rico’s total 176 postal codes, making it the most densely coded municipality in the region.

Key ZIP Code Zones in San Juan

The city’s postal zones are distributed across several notable areas:

• Old San Juan: 00901, 00902 - Covering the historic colonial district
• Santurce: 00907, 00908 - A densely populated urban neighborhood
• Hato Rey: 00917, 00919 - The financial district
• Río Piedras: 00925, 00926, 00927, 00928 - Home to the University of Puerto Rico
• Puerta de Tierra: 00906 - A historic neighborhood near Old San Juan

ZIP Code Characteristics

San Juan’s postal codes are not just random numbers. They provide insights into the city’s structure:

• 16 Standard ZIP Codes
• 3 Unique ZIP Codes
• 17 P.O. Box ZIP Codes

Postal Diversity

Interestingly, some ZIP codes serve specific institutions. For example, 00934 is designated for Fort Buchanan, and 00936 is the General Post Office ZIP code.

Telephone Area Codes

While discussing postal information, it’s worth noting that San Juan’s telecommunications use two primary area codes: 787 for landlines and 939 for mobile phones. The country code remains +1, making calls to San Juan similar to calling within the continental United States.

📬 Note: When addressing mail to San Juan, always include the specific ZIP code to ensure accurate delivery.

San Juan's postal system reflects the city's complexity, blending historical districts, modern neighborhoods, and diverse administrative zones into a comprehensive network that connects its 345,339 residents.