| City: | FPO, Armed Forces Pacific |
| Timezone: | --%> |
| Local Time: | 1:04:17 PM |
| Population: | No Population Data |
| Area Code: | -- |
| Classification: | Military Only |
| Quick Link: |
FPO AP 96350 provides military postal service to Commander Fleet Activities Yokosuka, including Naval Hospital Yokosuka and base support activities. This ZIP serves as an alternate designation for CFAY, the largest U.S. naval installation in the Western Pacific. The base occupies the site of a former Imperial Japanese Navy shipyard and has continuously supported U.S. naval forces since 1945. Mail routes through the USPS San Francisco International Service Center with typical delivery times of 10-14 days.
The Ship Repair Facility at Yokosuka is the only forward-deployed facility capable of servicing aircraft carriers and submarines, providing critical maintenance that enables sustained forward presence. Base support activities include supply, logistics, public works, and community services. Naval Hospital Yokosuka provides medical care for military personnel and families across Navy Region Japan. The installation supports approximately 24,500 military personnel, Department of Defense civilians, and family members.
The Yokosuka community offers comprehensive quality of life programs including DoDEA schools, commissary, exchange, and extensive MWR facilities. The base's location provides convenient access to Tokyo, Yokohama, and destinations throughout the Kanto region. Personnel sending mail should use the appropriate PSC Box format with FPO AP 96350. The installation remains essential for U.S. naval power projection in the Indo-Pacific.

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Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.