| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ibadan | city | Oyo State | Nigeria | 7.3877778 | 3.8963889 | 780 | 386580 |
| Iddo | city | Oyo State | Nigeria | 7.4716667 | 3.7616667 | 744 | 24925 |
| Idi Emi | city | Oyo State | Nigeria | 7.6819444 | 3.8727778 | 997 | 20630 |
| Idi Iroko | city | Oyo State | Nigeria | 7.3397222 | 3.8719444 | 521 | 423958 |
| Idi Ito | city | Oyo State | Nigeria | 7.7408333 | 3.9102778 | 869 | 15740 |
| Idi Iyalode | city | Oyo State | Nigeria | 7.7383333 | 3.7519444 | 626 | 15149 |
| Idi Iyeye | city | Oyo State | Nigeria | 7.5830556 | 3.9852778 | 830 | 42551 |
| Idi Omo | city | Oyo State | Nigeria | 7.5047222 | 3.9555556 | 754 | 43965 |
| Idi Ope | city | Oyo State | Nigeria | 7.7436111 | 3.9227778 | 908 | 15745 |
| Idi Osan | city | Oyo State | Nigeria | 7.5475 | 3.8277778 | 800 | 36728 |
| Idi Ose | city | Oyo State | Nigeria | 7.5011111 | 3.9138889 | 705 | 45746 |
| Idiapa | city | Oyo State | Nigeria | 7.7422222 | 3.7897222 | 692 | 15149 |
| Idiaraba | city | Oyo State | Nigeria | 7.7058333 | 3.8713889 | 994 | 20630 |
| Idioke | city | Oyo State | Nigeria | 7.5638889 | 3.8688889 | 839 | 43696 |
| Idiori | city | Oyo State | Nigeria | 7.6308333 | 3.9358333 | 892 | 31366 |
| Idioro | city | Oyo State | Nigeria | 7.4355556 | 3.8288889 | 692 | 218433 |
| Idioro | city | Oyo State | Nigeria | 7.3327778 | 3.855 | 452 | 387785 |
| Idiosan | city | Oyo State | Nigeria | 7.275 | 3.9291667 | 521 | 247556 |
| Idiosan | city | Oyo State | Nigeria | 7.3194444 | 3.9544444 | 518 | 405122 |
| Idiosan | city | Oyo State | Nigeria | 7.5472222 | 3.9961111 | 764 | 42551 |
| Idipopo | city | Oyo State | Nigeria | 7.6280556 | 3.8805556 | 875 | 33019 |
| Idiroko | city | Oyo State | Nigeria | 7.6838889 | 3.7725 | 807 | 14791 |
| Idiroko | city | Oyo State | Nigeria | 7.5247222 | 3.8025 | 761 | 32214 |
| Idiroko | city | Oyo State | Nigeria | 7.6769444 | 3.8152778 | 866 | 17426 |
| Idiroko | city | Oyo State | Nigeria | 7.5469444 | 3.8819444 | 780 | 43894 |
| Idiroko | city | Oyo State | Nigeria | 7.4758333 | 3.9252778 | 748 | 95894 |
| Idiroko | city | Oyo State | Nigeria | 7.6441667 | 3.9458333 | 912 | 31366 |
| Idirono | city | Oyo State | Nigeria | 7.5330556 | 3.9719444 | 751 | 41775 |
| Idisin | city | Oyo State | Nigeria | 7.6833333 | 3.8636111 | 997 | 20630 |
| Idowu | city | Oyo State | Nigeria | 7.5419444 | 3.7736111 | 770 | 22913 |
| Idowu Ajawbaw | city | Oyo State | Nigeria | 7.6041667 | 3.9308333 | 872 | 40962 |
| Idowu Oko | city | Oyo State | Nigeria | 7.6627778 | 3.9794444 | 1003 | 35760 |
| Igbagbo | city | Oyo State | Nigeria | 7.6533333 | 3.9205556 | 931 | 31366 |
| Igbira | city | Oyo State | Nigeria | 7.6405556 | 3.8111111 | 813 | 25234 |
| Igbo | city | Oyo State | Nigeria | 7.7422222 | 3.8044444 | 705 | 15736 |
| Igbodi | city | Oyo State | Nigeria | 7.4063889 | 3.7686111 | 567 | 203357 |
| Igbona | city | Oyo State | Nigeria | 7.4897222 | 3.7733333 | 748 | 24925 |
| Ijaiye | city | Oyo State | Nigeria | 7.6311111 | 3.8488889 | 931 | 30415 |
| Ijaiye Orile | city | Oyo State | Nigeria | 7.6311111 | 3.8488889 | 931 | 30415 |
| Ijako-Orile | city | Oyo State | Nigeria | 7.6311111 | 3.8488889 | 931 | 30415 |
| Ijara | city | Oyo State | Nigeria | 7.4744444 | 3.9716667 | 754 | 58475 |
| Ikanmodi | city | Oyo State | Nigeria | 7.5211111 | 3.8213889 | 784 | 32214 |
| Ikefa | city | Oyo State | Nigeria | 7.2633333 | 3.8475 | 505 | 272500 |
| Ikefun | city | Oyo State | Nigeria | 7.6411111 | 3.8277778 | 846 | 25234 |
| Ikereku | city | Oyo State | Nigeria | 7.6319444 | 3.9752778 | 951 | 35760 |
| Ikoroku | city | Oyo State | Nigeria | 7.6319444 | 3.9752778 | 951 | 35760 |
| Iku Oro | city | Oyo State | Nigeria | 7.6158333 | 3.9297222 | 882 | 40962 |
| Imeleke | city | Oyo State | Nigeria | 7.7055556 | 3.9827778 | 967 | 26705 |
| Imini | city | Oyo State | Nigeria | 7.6855556 | 3.7969444 | 843 | 17426 |
| Inalende | city | Oyo State | Nigeria | 7.4580556 | 3.8072222 | 784 | 218433 |
| Inuodi-Okiti | city | Oyo State | Nigeria | 7.2808333 | 3.9575 | 528 | 247556 |
| Ipodo | city | Oyo State | Nigeria | 7.3152778 | 3.87 | 465 | 387785 |
| Irepodun | city | Oyo State | Nigeria | 7.5675 | 3.9288889 | 964 | 43568 |
| Iroko | city | Oyo State | Nigeria | 7.6594444 | 3.9219444 | 987 | 31366 |
| Isaguna | city | Oyo State | Nigeria | 7.59 | 3.9913889 | 846 | 40982 |
| Isebo | city | Oyo State | Nigeria | 7.4047222 | 3.9780556 | 679 | 286420 |
| Iseke | city | Oyo State | Nigeria | 7.7452778 | 3.9122222 | 869 | 15740 |
| Isioye | city | Oyo State | Nigeria | 7.6605556 | 3.8194444 | 849 | 25234 |
| Itori | city | Oyo State | Nigeria | 7.3063889 | 3.75 | 515 | 162794 |
| Itosi Akowe | city | Oyo State | Nigeria | 7.7233333 | 3.7738889 | 669 | 15149 |
| Iware | city | Oyo State | Nigeria | 7.6519444 | 3.7872222 | 807 | 17107 |
| Iware | city | Oyo State | Nigeria | 7.6797222 | 3.9613889 | 997 | 26705 |
| Iya Offa | city | Oyo State | Nigeria | 7.6372222 | 3.9602778 | 931 | 35760 |
| Iyalode | city | Oyo State | Nigeria | 7.4119444 | 3.9938889 | 656 | 286420 |
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