San Juan, PR

ZIP code 00910 belongs to San Juan, the capital of Puerto Rico. This area is home to significant landmarks such as the historic Castillo San Felipe del Morro, a 16th-century fortress overlooking the Atlantic Ocean, and the colorful streets of Old San Juan with its charming colonial architecture. The ZIP code also encompasses popular tourist spots like the San Juan Cathedral and La Fortaleza, the oldest executive mansion in continuous use in the New World.