Pretty sure most everyone, especially Canadians, are aware that ISO country codes express in ISO 3166 oftentimes conflict with standard US State (and Canadian Province) codes.

Lo! Those conflicts and the Alpha-3 codes to avoid this.

(Psst, ISO… can you please asign UK either to Ukraine or the United Kingdom of Great Britain and Northern Ireland? Thanks! UA and GB respecively does no one any favors.)

2021-09-21 Update

The below is a markdown table, the original was in XML (for ‘twas the fasion back then… TEN YEARS ago!) converted using the really-quite-handy https://tableconvert.com

At some point, since we’re Hugo-ifying all the things, I should look at use of the /data/ directory and include the data programmatically.

Err. Maybe not. Seems like the dir is supposed to be used for site specific stuffs, and not content per se.

Code State/Province Abbrev. USPS Alpha code ISO 3166-1 alpha-2 Conflict Flag ISO 3166-1 alpha-3
USA-1 Alabama Ala. AL Albania 🇦🇱 ALB
USA-2 Alaska AK
USA-3 Arizona Ariz. AZ Azerbaijan 🇦🇿 AZE
USA-4 Arkansas Ark. AR Argentina 🇦🇷 ARG
USA-5 California Calif. CA Canada 🇨🇦 CAN
USA-6 Colorado Colo. CO Colombia 🇨🇴 COL
USA-7 Connecticut Conn. CT
USA-8 Delaware Del. DE Germany 🇩🇪 DEU
USA-9 District of Columbia D.C. DC
USA-10 Florida Fla. FL
USA-11 Georgia Ga. GA Gabon 🇬🇦 GAB
USA-12 Hawaii HI
USA-13 Idaho ID Indonesia 🇮🇩 IDN
USA-14 Illinois Ill. IL Israel 🇮🇱 ISR
USA-15 Indiana Ind. IN India 🇮🇳 IND
USA-16 Iowa IA
USA-17 Kansas Kans. KS
USA-18 Kentucky Ky. KY Cayman Islands 🇰🇾 CYM
USA-19 Louisiana LA Lao PDR (Laos) 🇱🇦 LAO
USA-20 Maine Me. ME Montenegro 🇲🇪 MNE
USA-21 Maryland Md. MD Moldova 🇲🇩 MDA
USA-22 Massachusetts Mass. MA Morocco 🇲🇦 MAR
USA-23 Michigan Mich. MI
USA-24 Minnesota Minn. MN Mongolia 🇲🇳 MNG
USA-25 Mississippi Miss. MS Montserrat 🇲🇸 MSR
USA-26 Missouri Mo. MO Macau, SAR China 🇲🇴 MAC
USA-27 Montana Mont. MT Malta 🇲🇹 MLT
USA-28 Nebraska Nebr. NE Niger 🇳🇪 NER
USA-29 Nevada Nev. NV
USA-30 New Hampshire N.H. NH
USA-31 New Jersey N.J. NJ
USA-32 New Mexico N.Mex. NM
USA-33 New York N.Y. NY
USA-34 North Carolina N.C. NC New Caledonia 🇫🇷 NCL
USA-35 North Dakota ND
USA-36 Ohio OH
USA-37 Oklahoma Okla. OK
USA-38 Oregon Ore. OR
USA-39 Pennsylvania Penn. PA Panama 🇵🇦 PAN
USA-40 Rhode Island R.I. RI
USA-41 South Carolina S.C. SC Seychelles 🇸🇨 SYC
USA-42 South Dakota SD Sudan 🇸🇩 SDN
USA-43 Tennessee Tenn. TN Tunisia 🇹🇳 TUN
USA-44 Texas Tex. TX
USA-45 Utah UT
USA-46 Vermont Vt. VT
USA-47 Virginia Va. VA Vatican City 🇻🇦 VAT
USA-48 Washington Wash. WA
USA-49 West Virginia W.Va. WV
USA-50 Wisconsin Wis. WI
USA-51 Wyoming Wyo. WY
CAN-1 Alberta AB
CAN-2 British Columbia BC
CAN-3 Manitoba MB
CAN-4 New Brunswick NB
CAN-5 Newfoundland and Labrador NL Netherlands 🇳🇱 NLD
CAN-6 Northwest Territories NT
CAN-7 Nova Scotia NS
CAN-8 Nunavit NU Niue 🇳🇺 NIU
CAN-9 Ontario ON
CAN-10 Prince Edward Island PE Peru 🇵🇪 PER
CAN-11 Quebéc QC
CAN-12 Saskatchewan SK Slovakia 🇸🇰 SVK
CAN-13 Yukon YT Mayotte 🇫🇷 MYT