96555 - APO AP - U.S. Army Kwajalein Atoll
APO AP - U.S. Army Kwajalein Atoll
Key Facts
- Home to Reagan Ballistic Missile Defense Test Site
- Located in Marshall Islands
- Remote Pacific atoll with multiple islands
- Space surveillance and missile testing mission
About ZIP Code 96555
APO AP 96555 provides military postal service to U.S. Army Garrison Kwajalein Atoll (USAKA) in the Republic of the Marshall Islands. The installation hosts the Ronald Reagan Ballistic Missile Defense Test Site, a critical facility for missile defense testing and space surveillance operations. Kwajalein Atoll, the world's largest coral atoll, includes approximately 100 islands encircling one of the largest lagoons in the world. Mail routes through the USPS San Francisco International Service Center with extended delivery times of 14-21 days due to the remote location.
The Reagan Test Site conducts testing and evaluation of missile defense systems, space surveillance, and scientific research. Kwajalein serves as the impact point for intercontinental ballistic missiles launched from Vandenberg Space Force Base in California during flight tests. The facility's equatorial location and isolation from population centers make it ideal for this mission. The installation operates under U.S. Army Space and Missile Defense Command.
Approximately 1,500 U.S. contractors, military personnel, and Marshallese citizens work on the atoll. The main residential and work area is on Kwajalein Island, with personnel also stationed on Roi-Namur and other islands. Due to its remote location, the community is self-contained with housing, recreation, dining, and essential services. Personnel sending mail should use the format: Name, US Army Kwajalein Atoll Box [Number], APO AP 96555. The tropical climate features consistent warm temperatures year-round.
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Helpful Veteran and First Responder Resources
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