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| ISO-3166-2 | Fips | GN | Name of Subdivision | Type | Capital | Population | lang | continent | From | Till | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | AB | 45 | 45 | Abia | state | Umuahia | 4,222,476 | AF | |||
| 2 | AD | 35 | 35 | Adamawa | state | Yola | 3,737,223 | AF | |||
| 3 | AK | 21 | 21 | Akwa Ibom | state | Uyo | 4,805,451 | AF | |||
| 4 | AN | 25 | 25 | Anambra | state | Awka | 4,721,858 | AF | |||
| 5 | BA | 46 | 46 | Bauchi | state | Bauchi | 4,653,066 | AF | |||
| 6 | BE | 26 | 26 | Benue | state | Makurdi | 5,181,642 | AF | |||
| 7 | BO | 27 | 27 | Borno | state | Maiduguri | 4,588,668 | AF | |||
| 8 | BY | 52 | 52 | Bayelsa | state | Yenagoa | 1,998,349 | AF | |||
| 9 | CR | 22 | 22 | Cross River | state | Calabar | 3,104,446 | AF | |||
| 10 | DE | 36 | 36 | Delta | state | Asaba | 4,170,214 | AF | |||
| 11 | EB | 53 | 53 | Ebonyi | state | Abakaliki | 1,739,136 | AF | |||
| 12 | ED | 37 | 37 | Edo | state | Benin-City | 3,497,502 | AF | |||
| 13 | EK | 54 | 54 | Ekiti | state | Ado-Ekiti | 2,737,186 | AF | |||
| 14 | EN | 47 | 47 | Enugu | state | Enugu | 3,267,837 | AF | |||
| 15 | FC | 11 | 11 | Federal Capital Territory | capital territory | Abuja | 1,405,201 | AF | |||
| 16 | GO | 55 | 55 | Gombe | state | Gombe | 2,448,236 | AF | |||
| 17 | IM | 28 | 28 | Imo | state | Owerri | 3,934,899 | AF | |||
| 18 | JI | 39 | 39 | Jigawa | state | Dutse | 2,829,929 | AF | |||
| 19 | KD | 23 | 23 | Kaduna | state | Kaduna | 6,849,075 | AF | |||
| 20 | KE | 40 | 40 | Kebbi | state | Birnin-Kebbi | 3,630,931 | AF | |||
| 21 | KN | 29 | 29 | Kano | state | Kano | 10,077,751 | AF | |||
| 22 | KO | 41 | 41 | Kogi | state | Lokoja | 3,595,789 | AF | |||
| 23 | KT | 24 | 24 | Katsina | state | Katsina | 6,483,429 | AF | |||
| 24 | KW | 30 | 30 | Kwara | state | Ilorin | 2,591,555 | AF | |||
| 25 | LA | 05 | 05 | Lagos | state | Ikeja | 10,601,345 | AF | |||
| 26 | NA | 56 | 56 | Nassarawa | state | Lafia | 2,040,097 | AF | |||
| 27 | NI | 31 | 31 | Niger | state | Minna | 4,082,558 | AF | |||
| 28 | OG | 16 | 16 | Ogun | state | Abeokuta | 4,054,272 | AF | |||
| 29 | ON | 48 | 48 | Ondo | state | Akure | 4,011,407 | AF | |||
| 30 | OS | 42 | 42 | Osun | state | Osogbo | 4,137,627 | AF | |||
| 31 | OY | 32 | 32 | Oyo | state | Ibadan | 6,617,720 | AF | |||
| 32 | PL | 49 | 49 | Plateau | state | Jos | 3,553,440 | AF | |||
| 33 | RI | 50 | 50 | Rivers | state | Port Harcourt | 6,689,087 | AF | |||
| 34 | SO | 51 | 51 | Sokoto | state | Sokoto | 4,244,399 | AF | |||
| 35 | TA | 43 | 43 | Taraba | state | Jalingo | 1,480,590 | AF | |||
| 36 | YO | 44 | 44 | Yobe | state | Damaturu | 2,532,395 | AF | |||
| 37 | ZA | 57 | 57 | Zamfara | state | Gusau | 3,602,356 | AF |
| Date | modification | fips | name | new country | new fips | new name |
|---|---|---|---|---|---|---|
| 2000.02.25 | change | 06 | Bauchi | 46 | Bauchi | |
| 2000.02.25 | change | 10 | Rivers | 50 | Rivers | |
| 2000.02.25 | change | 17 | Ondo | 48 | Ondo | |
| 2000.02.25 | change | 19 | Plateau | 49 | Plateau | |
| 2000.02.25 | change | 33 | Sokoto | 51 | Sokoto | |
| 2000.02.25 | change | 34 | Abia | 45 | Abia | |
| 2000.02.25 | change | 38 | Enugu | 47 | Enugu | |
| 2000.02.25 | add | 52 | Bayelsa | |||
| 2000.02.25 | add | 53 | Ebonyi | |||
| 2000.02.25 | add | 54 | Ekiti | |||
| 2000.02.25 | add | 55 | Gombe | |||
| 2000.02.25 | add | 56 | Nassarawa | |||
| 2000.02.25 | add | 57 | Zamfara | |||
| 2006.03.23 | change | 11 | Abuja Capital Territory | 11 | Federal Capital Teritory |
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