American National Standards Institute codes (ANSI codes) are a standardized set of numeric or alphabetic codes issued by the American National Standards Institute (ANSI) to ensure uniform identification of geographic entities through all federal government agencies. These standards replace the Federal Information Processing Standards (FIPS) codes previously issued by the National Institute of Standards and Technology (NIST). The entities covered include: states and statistically equivalent entities, counties and statistically equivalent entities, named populated and related location entities (such as, places and county subdivisions), and American Indian and Alaska Native areas.
ANSI maintains an Internet World Wide Web site of ANSI codes and information
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ANSI publications include:
INCITS 38:200x, (Formerly FIPS 5-2) Codes for the Identification of the States, the District of Columbia, Puerto Rico, and the Insular Areas of the United States
INCITS 31:200x, (Formerly FIPS 6-4) Codes for the Identification of Counties and Equivalent Entities of the United States, its Possessions, and Insular Areas
INCITS 454:200x, (Formerly FIPS 8-6) Codes for the Identification of Metropolitan and Micropolitan Statistical Areas and Related Areas of the United States and Puerto Rico
INCITS 455:200x, (Formerly FIPS 9-1) Codes for the Identification of Congressional Districts of the United States
INCITS 446-2008, (Geographic Names Information System (GNIS)) Codes for Named Populated Places, Primary County Divisions, and Other Locational Entities of the United States, Puerto Rico, and the Outlying Areas.
The U.S. Census Bureau uses the codes in INCITS 446-2008 to identify both legal and statistical entities for county subdivisions, places, and American Indian areas/Alaska Native areas/Hawaiian home lands. INCITS 446-2008 includes many more entity records than those for which the Census Bureau tabulates data. The INCITS 446-2008 codes are nation-based. American Indian reservations, off-reservation trust land areas, American Indian tribal subdivisions, Oklahoma tribal statistical areas (OTSAs), state designated tribal statistical areas (SDTSAs), and/or tribal designated statistical areas (TDSAs) in more than one state will have one INCITS 446-2008 code.
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