| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
2501  | Igan-Alade Igan,Igan Alade,Igan-Alade | Nigeria, Ogun State Egbado North | populated place | N 7° 3′ 22'' | E 2° 54′ 19'' |
| 2502 | Igabi Igabi | Nigeria, Kaduna State Igabi > Turunku | populated place population 8,840 | N 10° 48′ 21'' | E 7° 42′ 51'' |
| 2503 | Ifute Ifite-Ogwari,Ifute | Nigeria, Anambra Ayamelum | populated place | N 6° 36′ 14'' | E 6° 57′ 2'' |
| 2504 | Ifoyintedo Awdan Ibola,Ifonyintedo,Ifoyintedo | Nigeria, Ogun State Ipokia | populated place | N 6° 46′ 41'' | E 2° 47′ 21'' |
2505  | Ifon Forest Reserve | Nigeria, Ondo State | forest reserve | N 7° 6′ 13'' | E 5° 47′ 54'' |
| 2506 | Ife Forest Reserve | Nigeria, Osun State | forest reserve | N 7° 11′ 59'' | E 4° 25′ 6'' |
| 2507 | Ifaki Ifaki | Nigeria, Ekiti State Ido-Osi | populated place population 9,185 | N 7° 47′ 21'' | E 5° 14′ 54'' |
| 2508 | Iduviga Evbobewen II,Evbobewen Two,Iduviga | Nigeria, Edo State Orhionmwon | populated place | N 6° 8′ 29'' | E 6° 3′ 40'' |
| 2509 | Idumuodi Idumodi,Idumuodi | Nigeria, Edo State Orhionmwon | populated place | N 6° 20′ 13'' | E 6° 12′ 25'' |
| 2510 | Idumuje-Uno Idumuje-Uno,Idumujuno | Nigeria, Delta Aniocha North | populated place | N 6° 21′ 52'' | E 6° 26′ 57'' |
| 2511 | Idumujugboko Idumeje-Ugboko,Idumuje-Ugboko,Idumujugboko | Nigeria, Delta Aniocha North | populated place | N 6° 21′ 56'' | E 6° 24′ 10'' |
| 2512 | Idumuesah Idumesa,Idumuesah | Nigeria, Delta Ika North East | populated place | N 6° 9′ 56'' | E 6° 14′ 24'' |
| 2513 | Idu-Jimoti Idu Jimoti,Idu-Jimoti,Lukosi | Nigeria, Osun State Ife East | populated place | N 7° 21′ 37'' | E 4° 35′ 36'' |
| 2514 | Ido-Oshun Ido Oshun,Ido-Awshun,Ido-Oshun | Nigeria, Osun State Egbedore | populated place | N 7° 46′ 49'' | E 4° 28′ 55'' |
| 2515 | Idomogu Two Dologu,Idomogu,Idomogu II,Idomogu Two | Nigeria, Ogun State Ipokia | populated place | N 6° 45′ 59'' | E 2° 47′ 11'' |
| 2516 | Idumoza Idomeza,Idumoza,Igomersi | Nigeria, Delta Ika South | populated place | N 6° 15′ 15'' | E 6° 8′ 18'' |
| 2517 | Idolugbo Dolubaw,Idolubo,Idolugbo | Nigeria, Ogun State Egbado South | populated place | N 6° 47′ 47'' | E 2° 55′ 14'' |
| 2518 | Ido-Irapa Iddo Irapa,Ido Irapa,Ido-Irapa | Nigeria, Ekiti State Ekiti West | populated place | N 7° 48′ 15'' | E 4° 57′ 26'' |
| 2519 | Idua Idoa,Idua | Nigeria, Edo State Esan West | populated place | N 6° 48′ 45'' | E 6° 13′ 16'' |
| 2520 | Idi-Oro Idi Oro,Idi-Oro | Nigeria, Osun State Ola Oluwa | populated place | N 7° 46′ 18'' | E 4° 16′ 43'' |
| 2521 | Idi-Ofe Idi Ofe,Idi-Ofe,Idi-Off | Nigeria, Ogun State Ado Odo/Ota | populated place | N 6° 36′ 24'' | E 2° 59′ 21'' |
| 2522 | Idi-Mango Idi Mango,Idi Mongoro,Idi-Mango | Nigeria, Ogun State Egbado North | populated place | N 7° 18′ 48'' | E 2° 53′ 1'' |
| 2523 | Idima Edda,Idima,Idimo | Nigeria, Ebonyi State | populated place | N 5° 32′ 33'' | E 7° 42′ 7'' |
| 2524 | Idiko-Ile Idiko Ile,Idiko-Ile,Oke-Ile | Nigeria, Oyo State Iwajowa | populated place | N 7° 55′ 51'' | E 3° 0′ 57'' |
| 2525 | Idogun Idegun,Idogun | Nigeria, Edo State Etsako West | populated place | N 6° 54′ 12'' | E 6° 24′ 46'' |
| 2526 | Idaogun Idaogun,Iponrin,Iporin | Nigeria, Oyo State Atiba | populated place | N 8° 5′ 4'' | E 3° 55′ 30'' |
| 2527 | Idain-Gbegodo Idain Isaga,Idain-Gbegodo,Idain-Ishaga | Nigeria, Ogun State Ado Odo/Ota | populated place | N 6° 31′ 31'' | E 3° 3′ 4'' |
| 2528 | Ichuda Ichida,Ichuda | Nigeria, Anambra Anaocha | populated place | N 6° 2′ 36'' | E 6° 59′ 5'' |
| 2529 | Ibokun  Ibokun | Nigeria, Osun State Obokun | seat of a second-order administrative division | N 7° 47′ 14'' | E 4° 43′ 46'' |
2530  | Lake Ibini | Nigeria, Abia State | lake | N 5° 45′ 21'' | E 7° 57′ 46'' |
| 2531 | Ibiaku Ikot Ekpenyong Ibiaku Ikot Ekpenyong,Ibiaku Ikotekpenyon,Ikot Ekpenyong | Nigeria, Akwa Ibom State Mkpat Enin | populated place | N 4° 48′ 23'' | E 7° 46′ 42'' |
| 2532 | Ibese Beshi,Ibese,Ibeshe | Nigeria, Lagos Amuwo Odofin | populated place | N 6° 24′ 36'' | E 3° 15′ 22'' |
| 2533 | Ibeku-Alase Ibeku,Ibeku Alase,Ibeku-Alase | Nigeria, Ogun State Egbado North | populated place | N 7° 0′ 38'' | E 2° 47′ 56'' |
| 2534 | Iboju Ibeju,Iboju,Okun Ibeju | Nigeria, Lagos Eti Osa | populated place | N 6° 25′ 22'' | E 3° 31′ 45'' |
| 2535 | Ibefun Ibefon,Ibefum,Ibefun | Nigeria, Ogun State Odogbolu | populated place | N 6° 42′ 40'' | E 3° 47′ 47'' |
| 2536 | Ibasa Bassa,Ibasa,Ibasha | Nigeria, Lagos Amuwo Odofin | populated place | N 6° 25′ 27'' | E 3° 15′ 21'' |
| 2537 | Ibara-Orile Ibara Orile,Ibara-Oko,Ibara-Orile | Nigeria, Ogun State Abeokuta North | populated place | N 7° 8′ 31'' | E 3° 14′ 36'' |
| 2538 | Ibapon Ibapao,Ibapawn,Ibapon | Nigeria, Oyo State Ogbomosho South | populated place | N 8° 6′ 1'' | E 4° 10′ 45'' |
| 2539 | Ibafo Bafo,Ibafo | Nigeria, Ogun State Obafemi Owode | populated place | N 6° 44′ 32'' | E 3° 25′ 18'' |
| 2540 | Ibadan Ibadan,Zugungi,Ибадан | Nigeria, Niger State Borgu | populated place | N 10° 50′ 41'' | E 4° 1′ 16'' |
| 2541 | Ibao Iba,Ibaa,Ibao,Ibe | Nigeria, Rivers State Emuoha | populated place | N 4° 58′ 1'' | E 6° 48′ 45'' |
| 2542 | Humucci Humucci,Humushi,Humutschi | Nigeria, Adamawa Michika | populated place | N 10° 40′ 17'' | E 13° 27′ 2'' |
| 2543 | Holma Holma | Nigeria, Adamawa Maiha | populated place population 9,199 | N 9° 53′ 55'' | E 13° 3′ 16'' |
| 2544 | Hinna Hinna | Nigeria, Gombe State Yamaltu/Deba | populated place population 7,826 | N 10° 18′ 15'' | E 11° 29′ 56'' |
2545  | Hilja Hill Hilja,Hilja Hill | Nigeria, Borno State Biu > Garubula | hill | N 10° 47′ 2'' | E 12° 5′ 0'' |
| 2546 | Hamman Kankadu Hamman Kankadu,HammanKankadu,Hammankankadu | Nigeria, Taraba State | mountains | N 7° 11′ 59'' | E 11° 46′ 44'' |
| 2547 | Hambadga | Nigeria, | locality | N 11° 2′ 0'' | E 11° 43′ 0'' |
| 2548 | Lake Halatu | Nigeria, Adamawa | lake | N 10° 22′ 37'' | E 12° 50′ 34'' |
| 2549 | Hosere Gyr Hosere Gyr,Hosere Gyr Hill | Nigeria, Taraba State Bali | hill | N 7° 51′ 31'' | E 10° 52′ 41'' |
| 2550 | Gwoza Wakane | Nigeria, Borno State | locality | N 11° 5′ 20'' | E 13° 41′ 9'' |
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