Federal Information Processing Standard state code

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FIPS state codes were numeric and two-letter alphabetic codes defined in U.S. Federal Information Processing Standard Publication ("FIPS PUB") 5-2 to identify U.S. states and certain other associated areas. The standard superseded FIPS PUB 5-1 on May 28, 1987, and was superseded on September 2, 2008, by ANSI standard INCITS 38:2009.[1]

The codes are used in Geographic Names Information System, overseen by the U.S. Board on Geographic Names. The codes were assigned by NIST and each uniquely identified a state, the District of Columbia, or an outlying area of the U.S. These codes were used by the U.S. Census Bureau, the Department of Agriculture to form milk-processing plant numbers, some cash registers during check approval, and in the Emergency Alert System (EAS).

The FCC assigned additional numeric codes used with the EAS for territorial waters of the U.S., but these were not part of the FIPS standard.

The FIPS state alpha code for each U.S. states and the District of Columbia are identical to the postal abbreviations by the United States Postal Service. From September 3, 1987, the same was true of the alpha code for each of the outlying areas, with the exception of U.S. Minor Outlying Islands (UM) as the USPS routes mail for these islands indirectly.

Each of the various minor outlying islands that fell within alpha code UM had an individual numeric code, but no individual alpha code.

On September 2, 2008, FIPS 5-2 was one of ten standards withdrawn by NIST as a Federal Information Processing Standard.[2]

FIPS state codes[edit]

The following table enumerates the FIPS state alpha and numeric codes for the states, the District of Columbia, the outlying areas of the United States, the freely associated states, and trust territory, and FIPS state numeric codes for the individual minor outlying island territories.

Only actual U.S. states and the District of Columbia had FIPS state numeric codes in the range 01 through 56.

FIPS PUB 5-1 (published on June 15, 1970, and superseded by FIPS PUB 5-2 on May 28, 1987) stated that certain numeric codes "are reserved for possible future use in identifying American Samoa (03), Canal Zone (07), Guam (14), Puerto Rico (43), and Virgin Islands (52)", but these codes were omitted from FIPS PUB 5-2 without comment. These areas are marked with a * and highlighted in red in the table below.[3]

For states, the "Status" column in the table below includes a link to a list of the counties (boroughs and census areas in Alaska; parishes in Louisiana) for that state including the county codes as defined in FIPS PUB 6-4. The listings of counties for other areas are set out at the end of this article.

Name Alpha code Numeric code Status
Alabama AL 01 State; counties
Alaska AK 02 State; boroughs
American Samoa AS 60 Outlying area under U.S. sovereignty
American Samoa * 03 (FIPS 5-1 reserved code)
Arizona AZ 04 State; counties
Arkansas AR 05 State; counties
Baker Island BI 81 Minor outlying island territory
California CA 06 State; counties
Canal Zone * 07 (FIPS 5-1 reserved code)
Colorado CO 08 State; counties
Connecticut CT 09 State; counties
Delaware DE 10 State; counties
District of Columbia DC 11 Federal district[4]
Florida FL 12 State; counties
Federated States of Micronesia FM 64 Freely Associated State
Georgia GA 13 State; counties
Guam * 14 (FIPS 5-1 reserved code)
Guam GU 66 Outlying area under U.S. sovereignty
Hawaii HI 15 State; counties
Howland Island HI 84 Minor outlying island territory
Idaho ID 16 State; counties
Illinois IL 17 State; counties
Indiana IN 18 State; counties
Iowa IA 19 State; counties
Jarvis Island JI 86 Minor outlying island territory
Johnston Atoll JA 67 Minor outlying island territory
Kansas KS 20 State; counties
Kentucky KY 21 State; counties
Kingman Reef KR 89 Minor outlying island territory
Louisiana LA 22 State; parishes
Maine ME 23 State; counties
Marshall Islands MH 68 Freely Associated State
Maryland MD 24 State; counties
Massachusetts MA 25 State; counties
Michigan MI 26 State; counties
Midway Islands MI 71 Minor outlying island territory
Minnesota MN 27 State; counties
Mississippi MS 28 State; counties
Missouri MO 29 State; counties
Montana MT 30 State; counties
Navassa Island NI 76 Minor outlying island territory
Nebraska NE 31 State; counties
Nevada NV 32 State; counties
New Hampshire NH 33 State; counties
New Jersey NJ 34 State; counties
New Mexico NM 35 State; counties
New York NY 36 State; counties
North Carolina NC 37 State; counties
North Dakota ND 38 State; counties
Northern Mariana Islands MP 69 Outlying area under U.S. sovereignty
Ohio OH 39 State; counties
Oklahoma OK 40 State; counties
Oregon OR 41 State; counties
Palau PW 70 Freely Associated State
Palmyra Atoll PA 95 Minor outlying island territory
Pennsylvania PA 42 State; counties
Puerto Rico * 43 (FIPS 5-1 reserved code)
Puerto Rico PR 72 Outlying area under U.S. sovereignty
Rhode Island RI 44 State; counties
South Carolina SC 45 State; counties
South Dakota SD 46 State; counties
Tennessee TN 47 State; counties
Texas TX 48 State; counties
U.S. Minor Outlying Islands UM 74 Minor outlying island territories (aggregated)
Utah UT 49 State; counties
Vermont VT 50 State; counties
Virginia VA 51 State; counties
Virgin Islands of the U.S. * 52 (FIPS 5-1 reserved code)
Virgin Islands of the U.S. VI 78 Outlying area under U.S. sovereignty
Wake Island WI 79 Minor outlying island territory
Washington WA 53 State; counties
West Virginia WV 54 State; counties
Wisconsin WI 55 State; counties
Wyoming WY 56 State; counties

County codes[edit]

Supplemental codes for maritime areas[edit]

The Emergency Alert System (EAS) and the weather radio service provided by NOAA use these codes to supplement FIPS PUB 5-2 to include certain maritime areas.[5]

EAS code Maritime area
57 Pacific coast from Washington to California
58 Alaskan coast
59 Hawaiian coast
61 American Samoa waters
65 Mariana Islands waters (including Guam)
73 Atlantic coast from Maine to Virginia
75 Atlantic coast from North Carolina to Florida, and the coasts of Puerto Rico and Virgin Islands
77 Gulf of Mexico
91 Lake Superior
92 Lake Michigan
93 Lake Huron
94 St. Clair River, Detroit River, and Lake St. Clair
96 Lake Erie
97 Niagara River and Lake Ontario
98 St. Lawrence River

See also[edit]


  1. ^ FIPS 5-2 timeline
    • "Codes for the Identification of the States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas (FIPS PUB 5-2)". United States Census Bureau. June 15, 1970. Archived from the original on July 5, 2009. Retrieved July 1, 2009.
    • "Withdrawn FIPS Listed by Number". National Institute of Standards and Technology. March 26, 2009. Archived from the original on June 4, 2009. Retrieved July 1, 2009.
    • "American National Standards Institute (ANSI) Codes for States". United States Census Bureau. June 25, 2018. Retrieved May 1, 2020.
  2. ^ National Institute of Standards and Technology (September 2, 2008). "Announcing Approval of the Withdrawal of Ten Federal Information Processing Standards (FIPS)". Federal Register. 73: 51276. 73 FR 51276
  3. ^ "States and Outlying Areas of the United States (FIPS PUB 5-1)" (PDF). U.S. Government Printing Office. June 15, 1970. Retrieved July 1, 2009.
  4. ^ The federal district of the United States has one city, the City of Washington, which is coterminous with the single county, District of Columbia County
  5. ^ "CFR Title 47 PART 11 Subpart B § 11.31: EAS protocol". Electronic Code of Federal Regulations. U.S. Government Printing Office. September 2, 2016. Retrieved September 2, 2016.

External links[edit]