| AD | Andorra | 7 parishes |
| AE | United Arab Emirates | 7 emirates |
| AF | Afghanistan | 34 provinces |
| AG | Antigua and Barbuda | 6 parishes
2 dependencies |
| AI | Anguilla | — |
| AL | Albania | 12 counties |
| AM | Armenia | 1 city
10 regions |
| AO | Angola | 18 provinces |
| AQ | Antarctica | — |
| AR | Argentina | 1 city
23 provinces |
| AS | American Samoa | — |
| AT | Austria | 9 states |
| AU | Australia | 6 states
2 territories |
| AW | Aruba | — |
| AX | Åland Islands | — |
| AZ | Azerbaijan | 1 autonomous republic
11 municipalities
66 rayons |
| BA | Bosnia and Herzegovina | 2 entities
1 district with special status |
| BB | Barbados | 11 parishes |
| BD | Bangladesh | 8 divisions
64 districts |
| BE | Belgium | 3 regions
10 provinces |
| BF | Burkina Faso | 13 regions
45 provinces |
| BG | Bulgaria | 28 regions |
| BH | Bahrain | 4 governorates |
| BI | Burundi | 18 provinces |
| BJ | Benin | 12 departments |
| BL | Saint Barthélemy | — |
| BM | Bermuda | — |
| BN | Brunei Darussalam | 4 districts |
| BO | Bolivia, Plurinational State of | 9 departments |
| BQ | Bonaire, Sint Eustatius and Saba | 3 special municipalities |
| BR | Brazil | 1 federal district
26 states |
| BS | Bahamas | 31 districts
1 island |
| BT | Bhutan | 20 districts |
| BV | Bouvet Island | — |
| BW | Botswana | 10 districts
4 towns
2 cities |
| BY | Belarus | 6 oblasts
1 city |
| BZ | Belize | 6 districts |
| CA | Canada | 10 provinces
3 territories |
| CC | Cocos (Keeling) Islands | — |
| CD | Congo, Democratic Republic of the | 1 city
25 provinces |
| CF | Central African Republic | 1 commune
14 prefectures
2 economic prefectures |
| CG | Congo | 12 departments |
| CH | Switzerland | 26 cantons |
| CI | Côte d'Ivoire | 12 districts
2 autonomous districts |
| CK | Cook Islands | — |
| CL | Chile | 16 regions |
| CM | Cameroon | 10 regions |
| CN | China | 4 municipalities
23 provinces
5 autonomous regions
2 special administrative regions |
| CO | Colombia | 1 capital district
32 departments |
| CR | Costa Rica | 7 provinces |
| CU | Cuba | 15 provinces
1 special municipality |
| CV | Cabo Verde | 2 geographical regions
22 municipalities |
| CW | Curaçao | — |
| CX | Christmas Island | — |
| CY | Cyprus | 6 districts |
| CZ | Czechia | 13 regions
1 capital city
76 districts |
| DE | Germany | 16 states |
| DJ | Djibouti | 5 regions
1 city |
| DK | Denmark | 5 regions |
| DM | Dominica | 10 parishes |
| DO | Dominican Republic | 10 regions
1 district
31 provinces |
| DZ | Algeria | 58 provinces |
| EC | Ecuador | 24 provinces |
| EE | Estonia | 15 counties
64 rural municipalities
15 urban municipalities |
| EG | Egypt | 27 governorates |
| EH | Western Sahara | — |
| ER | Eritrea | 6 regions |
| ES | Spain | 17 autonomous communities
2 autonomous cities in North Africa
50 provinces |
| ET | Ethiopia | 2 administrations
11 regional states |
| FI | Finland | 19 regions |
| FJ | Fiji | 4 divisions
1 dependency
14 provinces |
| FK | Falkland Islands (Malvinas) | — |
| FM | Micronesia, Federated States of | 4 states |
| FO | Faroe Islands | — |
| FR | France | 12 metropolitan regions
5 overseas collectivities
1 overseas collectivity with special status
1 dependency
3 overseas departmental collectivities
1 overseas territory
2 overseas unique territorial collectivities
95 metropolitan departments
3 metropolitan collectivities with special status
1 European collectivity |
| GA | Gabon | 9 provinces |
| GB | United Kingdom of Great Britain and Northern Ireland | 3 countries
1 province
32 council areas
25 two-tier counties
11 districts
80 unitary authorities
36 metropolitan districts
32 London boroughs
1 city corporation |
| GD | Grenada | 6 parishes
1 dependency |
| GE | Georgia | 2 autonomous republics
1 city
9 regions |
| GF | French Guiana | — |
| GG | Guernsey | — |
| GH | Ghana | 16 regions |
| GI | Gibraltar | — |
| GL | Greenland | 5 municipalities |
| GM | Gambia | 1 city
5 divisions |
| GN | Guinea | 7 administrative regions
1 governorate
33 prefectures |
| GP | Guadeloupe | — |
| GQ | Equatorial Guinea | 2 regions
8 provinces |
| GR | Greece | 13 administrative regions
1 self-governed part |
| GS | South Georgia and the South Sandwich Islands | — |
| GT | Guatemala | 22 departments |
| GU | Guam | — |
| GW | Guinea-Bissau | 3 provinces
1 autonomous sector
8 regions |
| GY | Guyana | 10 regions |
| HK | Hong Kong | — |
| HM | Heard Island and McDonald Islands | — |
| HN | Honduras | 18 departments |
| HR | Croatia | 1 city
20 counties |
| HT | Haiti | 10 departments |
| HU | Hungary | 1 capital city
19 counties
23 cities of county right |
| ID | Indonesia | 7 geographical units
36 provinces
1 capital district
1 special region |
| IE | Ireland | 4 provinces
26 counties |
| IL | Israel | 6 districts |
| IM | Isle of Man | — |
| IN | India | 28 states
8 union territories |
| IO | British Indian Ocean Territory | — |
| IQ | Iraq | 1 region
18 governorates |
| IR | Iran, Islamic Republic of | 31 provinces |
| IS | Iceland | 8 regions
64 municipalities |
| IT | Italy | 15 regions
5 autonomous regions
80 provinces
2 autonomous provinces
6 free municipal consortiums
14 metropolitan cities
4 decentralized regional entities |
| JE | Jersey | — |
| JM | Jamaica | 14 parishes |
| JO | Jordan | 12 governorates |
| JP | Japan | 47 prefectures |
| KE | Kenya | 47 counties |
| KG | Kyrgyzstan | 2 cities
7 regions |
| KH | Cambodia | 1 autonomous municipality
24 provinces |
| KI | Kiribati | 3 groups of islands |
| KM | Comoros | 3 islands |
| KN | Saint Kitts and Nevis | 2 states
14 parishes |
| KP | Korea, Democratic People's Republic of | 1 capital city
1 metropolitan city
1 special city
9 provinces |
| KR | Korea, Republic of | 6 metropolitan cities
2 special cities
1 special self-governing city
7 provinces
2 special self-governing provinces |
| KW | Kuwait | 6 governorates |
| KY | Cayman Islands | — |
| KZ | Kazakhstan | 3 cities
17 regions |
| LA | Lao People's Democratic Republic | 1 prefecture
17 provinces |
| LB | Lebanon | 8 governorates |
| LC | Saint Lucia | 10 districts |
| LI | Liechtenstein | 11 communes |
| LK | Sri Lanka | 9 provinces
25 districts |
| LR | Liberia | 15 counties |
| LS | Lesotho | 10 districts |
| LT | Lithuania | 10 counties
9 municipalities
7 city municipalities
44 district municipalities |
| LU | Luxembourg | 12 cantons |
| LV | Latvia | 36 municipalities
7 state cities |
| LY | Libya | 22 popularates |
| MA | Morocco | 12 regions
62 provinces
13 prefectures |
| MC | Monaco | 17 quarters |
| MD | Moldova, Republic of | 1 autonomous territorial unit
3 cities
32 districts
1 territorial unit |
| ME | Montenegro | 25 municipalities |
| MF | Saint Martin (French part) | — |
| MG | Madagascar | 6 provinces |
| MH | Marshall Islands | 2 chains of islands
24 municipalities |
| MK | North Macedonia | 80 municipalities |
| ML | Mali | 1 district
10 regions |
| MM | Myanmar | 7 regions
7 states
1 union territory |
| MN | Mongolia | 1 capital city
21 provinces |
| MO | Macao | — |
| MP | Northern Mariana Islands | — |
| MQ | Martinique | — |
| MR | Mauritania | 15 regions |
| MS | Montserrat | — |
| MT | Malta | 68 local councils |
| MU | Mauritius | 3 dependencies
9 districts |
| MV | Maldives | 19 administrative atolls
2 cities |
| MW | Malawi | 3 regions
28 districts |
| MX | Mexico | 31 states
1 federal entity |
| MY | Malaysia | 3 federal territories
13 states |
| MZ | Mozambique | 1 city
10 provinces |
| NA | Namibia | 14 regions |
| NC | New Caledonia | — |
| NE | Niger | 1 urban community
7 departments |
| NF | Norfolk Island | — |
| NG | Nigeria | 1 capital territory
36 states |
| NI | Nicaragua | 15 departments
2 autonomous regions |
| NL | Netherlands, Kingdom of the | 12 provinces
3 countries
3 special municipalities |
| NO | Norway | 11 counties
2 arctic regions |
| NP | Nepal | 7 provinces |
| NR | Nauru | 14 districts |
| NU | Niue | — |
| NZ | New Zealand | 16 regions
1 special island authority |
| OM | Oman | 11 governorates |
| PA | Panama | 10 provinces
4 indigenous regions |
| PE | Peru | 25 regions
1 municipality |
| PF | French Polynesia | — |
| PG | Papua New Guinea | 1 district
20 provinces
1 autonomous region |
| PH | Philippines | 17 regions
82 provinces |
| PK | Pakistan | 4 provinces
2 autonomous territories
1 federal territory |
| PL | Poland | 16 voivodships |
| PM | Saint Pierre and Miquelon | — |
| PN | Pitcairn | — |
| PR | Puerto Rico | — |
| PS | Palestine, State of | 16 governorates |
| PT | Portugal | 18 districts
2 autonomous regions |
| PW | Palau | 16 states |
| PY | Paraguay | 1 capital
17 departments |
| QA | Qatar | 8 municipalities |
| RE | Réunion | — |
| RO | Romania | 41 departments
1 municipality |
| RS | Serbia | 2 autonomous provinces
1 city
29 districts |
| RU | Russian Federation | 21 republics
9 administrative territories
46 administrative regions
2 autonomous cities
1 autonomous region
4 autonomous districts |
| RW | Rwanda | 1 town council
4 provinces |
| SA | Saudi Arabia | 13 regions |
| SB | Solomon Islands | 1 capital territory
9 provinces |
| SC | Seychelles | 27 districts |
| SD | Sudan | 18 states |
| SE | Sweden | 21 counties |
| SG | Singapore | 5 districts |
| SH | Saint Helena, Ascension and Tristan da Cunha | 3 geographical entities |
| SI | Slovenia | 200 municipalities and 12 urban municipalities |
| SJ | Svalbard and Jan Mayen | — |
| SK | Slovakia | 8 regions |
| SL | Sierra Leone | 1 area
4 provinces |
| SM | San Marino | 9 municipalities |
| SN | Senegal | 14 regions |
| SO | Somalia | 18 regions |
| SR | Suriname | 10 districts |
| SS | South Sudan | 10 states |
| ST | Sao Tome and Principe | 1 autonomous region
6 districts |
| SV | El Salvador | 14 departments |
| SX | Sint Maarten (Dutch part) | — |
| SY | Syrian Arab Republic | 14 provinces |
| SZ | Eswatini | 4 regions |
| TC | Turks and Caicos Islands | — |
| TD | Chad | 23 provinces |
| TF | French Southern Territories | — |
| TG | Togo | 5 regions |
| TH | Thailand | 1 metropolitan administration
1 special administrative city
76 provinces |
| TJ | Tajikistan | 1 autonomous region
2 regions
1 capital territory
1 district under republic administration |
| TK | Tokelau | — |
| TL | Timor-Leste | 12 municipalities
1 special administrative region |
| TM | Turkmenistan | 5 regions
1 city |
| TN | Tunisia | 24 governorates |
| TO | Tonga | 5 divisions |
| TR | Türkiye | 81 provinces |
| TT | Trinidad and Tobago | 9 regions
3 boroughs
2 cities
1 ward |
| TV | Tuvalu | 1 town council
7 island councils |
| TW | Taiwan, Province of China[note 1] | 13 counties
3 cities
6 special municipalities |
| TZ | Tanzania, United Republic of | 31 regions |
| UA | Ukraine | 24 regions
1 republic
2 cities |
| UG | Uganda | 4 geographical regions
134 districts
1 city |
| UM | United States Minor Outlying Islands | 9 islands, groups of islands |
| US | United States of America | 50 states
1 district
6 outlying areas |
| UY | Uruguay | 19 departments |
| UZ | Uzbekistan | 1 city
12 regions
1 republic |
| VA | Holy See | — |
| VC | Saint Vincent and the Grenadines | 6 parishes |
| VE | Venezuela, Bolivarian Republic of | 1 federal dependency
1 federal district
23 states |
| VG | Virgin Islands (British) | — |
| VI | Virgin Islands (U.S.) | — |
| VN | Viet Nam | 58 provinces
5 municipalities |
| VU | Vanuatu | 6 provinces |
| WF | Wallis and Futuna | 3 administrative precincts |
| WS | Samoa | 11 districts |
| YE | Yemen | 1 municipality
21 governorates |
| YT | Mayotte | — |
| ZA | South Africa | 9 provinces |
| ZM | Zambia | 10 provinces |
| ZW | Zimbabwe | 10 provinces |
