US Territory and Military Mail Abbreviations
18 abbreviations · part of Geography & Place Abbreviations
US territories such as Puerto Rico and Guam have two-letter postal codes that work like state codes in addresses, and for the inhabited territories the same letters serve as their ISO 3166-1 country codes. This list also covers military and diplomatic mail: APO, FPO and DPO replace the city name, and AA, AE or AP replace the state, so mail to service members and embassy staff overseas travels at domestic rates through the Military Postal Service.
| Abbreviation | Stands for | Description |
|---|---|---|
| AA | Armed Forces Americas | State-position code for military and diplomatic mail to units in Central and South America and the Caribbean, used with APO, FPO or DPO and ZIP codes beginning 340. |
| AE | Armed Forces Europe | State-position code for APO, FPO and DPO mail to Europe, the Middle East, Africa and Canada, with ZIP codes from 090 to 098. |
| AP | Armed Forces Pacific | State-position code for military and diplomatic mail to the Pacific region, including bases in Japan and South Korea and ships of the Pacific Fleet, with ZIP codes from… |
| APO | Army Post Office | Written in place of a city name on mail to US Army and Air Force personnel overseas, as in APO AE 09001. |
| AS | American Samoa | The only inhabited US territory south of the equator, on Tutuila and the Manuʻa Islands in the South Pacific. |
| CMR | Community Mail Room | Designation in Army overseas addresses for a community or unit mailroom, written as CMR 450 Box 1234 followed by APO AE and the ZIP code. |
| CNMI | Commonwealth of the Northern Mariana Islands | Official initialism of the Northern Mariana Islands, used by the territory's government, courts and federal agencies. |
| CZ | Canal Zone | Former USPS abbreviation for the Panama Canal Zone, a strip about 10 miles wide across Panama administered by the United States from 1904 until it was abolished in 1979… |
| DPO | Diplomatic Post Office | Postal designation for US embassies and consulates abroad that lets State Department employees and their families receive mail at domestic rates. |
| FPO | Fleet Post Office | Designation for mail to Navy, Marine Corps and Coast Guard personnel aboard ships or at overseas naval installations, written in the city field, as in FPO AP 96349. |
| GU | Guam | Largest and southernmost of the Mariana Islands and a US territory since 1898. |
| MP | Northern Mariana Islands | Fourteen islands north of Guam, including Saipan, Tinian and Rota, that form a US commonwealth under a covenant approved in 1976; residents gained US citizenship in 1986. |
| MPSA | Military Postal Service Agency | Department of Defense agency that manages the Military Postal Service with the US Postal Service, setting mailing restrictions for APO, FPO and DPO ZIP codes… |
| PR | Puerto Rico | Self-governing US commonwealth in the Caribbean since its 1952 constitution, with about 3.2 million residents who are US citizens but cannot vote in presidential… |
| PSC | Postal Service Center | Line in Air Force and some joint-service overseas addresses, followed by a number and a box, as in PSC 3 Box 1234, APO AP 96266. |
| UM | U.S. Minor Outlying Islands | ISO code grouping nine small US island territories: Baker, Howland and Jarvis islands, Johnston Atoll, Kingman Reef, Midway Atoll, Navassa Island, Palmyra Atoll and… |
| USVI | United States Virgin Islands | Common written form for the US Virgin Islands in travel writing, news and local business names, used to distinguish the American islands of St. |
| VI | U.S. Virgin Islands | St. |
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