US state codes

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Several sets of codes and abbreviations are used to represent the political divisions of the United States of America for postal addresses, data processing, general abbreviations, and other purposes.


This table includes abbreviations for three independent countries related to the United States through Compacts of Free Association, and other comparable postal abbreviations.

Name and status of region ANSI
United States of America Federal state US 00
Alabama State AL 01
Alaska State AK 02
Arizona State AZ 04
Arkansas State AR 05
California State CA 06
Colorado State CO 08
Connecticut State CT 09
Delaware State DE 10
District of Columbia Federal district DC 11
Florida State FL 12
Georgia (U.S. state) State GA 13
Hawaii State HI 15
Idaho State ID 16
Illinois State IL 17
Indiana State IN 18
Iowa State IA 19
Kansas State KS 20
Kentucky State KY 21
Louisiana State LA 22
Maine State ME 23
Maryland State MD 24
Massachusetts State MA 25
Michigan State MI 26
Minnesota State MN 27
Mississippi State MS 28
Missouri State MO 29
Montana State MT 30
Nebraska State NE 31
Nevada State NV 32
New Hampshire State NH 33
New Jersey State NJ 34
New Mexico State NM 35
New York State NY 36
North Carolina State NC 37
North Dakota State ND 38
Ohio State OH 39
Oklahoma State OK 40
Oregon State OR 41
Pennsylvania State PA 42
Rhode Island State RI 44
South Carolina State SC 45
South Dakota State SD 46
Tennessee State TN 47
Texas State TX 48
Utah State UT 49
Vermont State VT 50
Virginia State VA 51
Washington State WA 53
West Virginia State WV 54
Wisconsin State WI 55
Wyoming State WY 56
American Samoa Insular area (Territory) AS 60
Guam Insular area (Territory) GU 66
Northern Mariana Islands Insular area (Commonwealth) MP 69
Puerto Rico Insular area (Commonwealth) PR 72
U.S. Virgin Islands Insular area (Territory) VI 78
U.S. Minor Outlying Islands Insular areas UM 74
   Baker Island Island 81
   Howland Island Island 84
   Jarvis Island Island 86
   Johnston Atoll Atoll 67
   Kingman Reef Atoll 89
   Midway Islands Atoll 71
   Navassa Island Island 76
   Palmyra Atoll Atoll 95
   Wake Island Atoll 79
Marshall Islands Freely associated state MH 68
Micronesia Freely associated state FM 64
Palau Freely associated state PW 70

The two-letter postal abbreviation system is complicated by the fact that several state names begin with the same letter (e.g., eight state names begin with M and eight begin with N, four "New" and two "North"). To avoid duplications, some abbreviations are not intuitive.

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