Provinces & states
First-level administrative divisions, their capitals, population and area.
| Province / state | Country | Capital | Population | Area |
|---|---|---|---|---|
| Australia Capital Territory | Australia | Canberra | 304,100 | 2,452 |
| Auvergne | France | Clermont Ferrand | 1,321,000 | 26,013 |
| Aveiro | Portugal | — | 656,000 | 2,808 |
| Avon | United Kingdom | Bristol | 962,000 | 1,346 |
| Ayacucho | Peru | Ayacucho | 517,397 | 43,814 |
| Aydin | Turkey | Aydin | 824,816 | 8,007 |
| Ayeyarwady | Burma | Pathein | 4,994,100 | 35,138 |
| Azarbayian e Gharbt | Iran | Orumiyeh | 2,284,208 | 38,850 |
| Azarbayian e Sharqi | Iran | Tabriz | 4,420,343 | 67,102 |
| Azerbaijan | Azerbaijan | Baku | 7,676,953 | 86,600 |
| Azores, The | Portugal | — | 236,700 | 2,247 |
| Babil | Iraq | Al Hillah | 1,108,773 | 6,468 |
| Bacau | Romania | Bacau | 731,000 | 6,606 |
| Bacs Kiskun | Hungary | Kecskemet | 540,800 | 8,363 |
| Badakhshoni Kuni | Tajikistan | Khorugh | 167,100 | 63,700 |
| Baden Wurttemberg | Germany | Stuttgart | 10,272,069 | 35,742 |
| Baghdad | Iraq | Baghdad | 4,648,609 | 734 |
| Bago | Burma | Bago | 3,799,800 | 39,404 |
| Bahamas | Bahamas | Nassau | 259,367 | 13,940 |
| Bahia | Brazil | Salvador | 12,531,895 | 567,295 |
| Bahr al Ghazal | Sudan | Waw | 2,265,510 | 200,894 |
| Bahrain | Bahrain | Manama | 590,042 | 620 |
| Baja California | Mexico | Mexicali | 2,112,140 | 70,113 |
| Baja California Sur | Mexico | La Paz | 375,494 | 73,677 |
| Bakhtaran | Iran | Bakhtaran | 1,622,159 | 23,667 |
| Balearic Islands | Spain | Palma de Mallorca | 736,865 | 4,992 |
| Balikesir | Turkey | Balikesir | 973,314 | 14,292 |
| Balkan | Turkmenistan | Nebitdag | 925,500 | 233,900 |
| Bandundu | Zaire | Bandundu | 4,644,758 | 295,658 |
| Bangladesh | Bangladesh | Dhaka | 123,062,800 | 144,000 |
| Baranya | Hungary | Pecs | 417,100 | 4,487 |
| Barbados | Barbados | Bridgetown | 257,030 | 430 |
| Barinas | Venezuela | Barinas | 519,197 | 35,200 |
| Bas Zaire | Zaire | Matadi | 2,158,595 | 53,920 |
| Basilicata | Italy | Potenza | 611,000 | 9,992 |
| Basque Country | Spain | Vitoria Gasteiz | 2,075,561 | 7,235 |
| Basse Normandie | France | Caen | 1,391,000 | 17,589 |
| Batman | Turkey | Batman | 344,669 | 4,694 |
| Batys Qazaqstan | Kazakstan | Oral | 669,800 | 151,300 |
| Bayburt | Turkey | Bayburt | 107,330 | 3,652 |
| Bayern | Germany | Munich | 11,921,944 | 70,546 |
| BE | Switzerland | Bern | 941,952 | 5,960 |
| Bedfordshire | United Kingdom | Bedford | 534,300 | 1,235 |
| Beijing (munic.) | China | Beijing | 11,250,000 | 16,800 |
| Beja | Portugal | — | 167,900 | 10,225 |
| Bekes | Hungary | Bekescaba | 404,000 | 5,632 |
| Belarus | Belarus | Minsk | 10,415,973 | 207,600 |
| Belgorodskaya oblast | Russia | Belgorod | 1,469,100 | 27,100 |