Federal information processing standards (FIPS) 55, [1984]

Each geographic entity listed in this collection is identified by a unique two-character State code and a five-character numeric place code. Areas of the United States covered are the fifty States, the District of Columbia, and all outlying territories with significant self-administration. An exhaustive list is included of incorporated places, census designated places (CDP's), primary county divisions, recognized Indian reservations and Alaska Native villages and counties. The listing also includes unincorporated places, military bases, National parks, airports, and ground transportation points. A two-character class code distinquishes over 70 entity types. Each entity is identified by the county or counties in which it is located. All categories and military bases are identified by Congressional District, and in most cases, by metropolitan statistical areas. Incorporated places, CDP's and Indian and Alaska Native areas are cross-referenced to United States Bureau of the Census files. Zip codes are provided for all Post Offices. There are fifty-seven data files in this collection, one for each State, the District of Columbia, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, Trust Territory of the Pacific Islands, and the Virgin Islands of the United States.