| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Il-dong | city | Kyonggi-do | Korea, Republic of (South) | 37.9597222 | 127.3183333 | 528 | 89671 |
| Il-gol | city | Kangwon-do | Korea, Republic of (South) | 37.2116667 | 128.3272222 | 935 | 9986 |
| Il-li | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.0333333 | 126.6666667 | 19 | 20066 |
| Ilbong-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.9288889 | 127.1261111 | 620 | 21322 |
| Ilbu | city | Kyongsang-namdo | Korea, Republic of (South) | 35.4072222 | 128.1202778 | 314 | 42095 |
| Ilbu-ri | city | Kyongsang-bukto | Korea, Republic of (South) | 35.7191667 | 129.0133333 | 1345 | 17764 |
| Ilchang | city | Cholla-namdo | Korea, Republic of (South) | 34.6166667 | 126.3666667 | 0 | 13522 |
| Ilchong | city | Cholla-namdo | Korea, Republic of (South) | 34.6166667 | 126.3666667 | 0 | 13522 |
| Ilchong | city | Cholla-namdo | Korea, Republic of (South) | 34.35 | 127 | 0 | 5828 |
| Ilchong-dong | city | Kyonggi-do | Korea, Republic of (South) | 37.65 | 126.8833333 | 62 | 197023 |
| Ilchong-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.6166667 | 126.3666667 | 0 | 13522 |
| Ilchong-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.35 | 127 | 0 | 5828 |
| Ilchuam | city | Kyongsang-namdo | Korea, Republic of (South) | 35.5833333 | 127.75 | 859 | 42007 |
| Ilchŏng | city | Cholla-namdo | Korea, Republic of (South) | 34.6166667 | 126.3666667 | 0 | 13522 |
| Ilchŏng | city | Cholla-namdo | Korea, Republic of (South) | 34.35 | 127 | 0 | 5828 |
| Ilchŏng-dong | city | Kyonggi-do | Korea, Republic of (South) | 37.65 | 126.8833333 | 62 | 197023 |
| Ilchŏng-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.6166667 | 126.3666667 | 0 | 13522 |
| Ilchŏng-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.35 | 127 | 0 | 5828 |
| Ilgok | city | | Korea, Republic of (South) | 35.2 | 126.9 | 118 | 726518 |
| Ilgol-li | city | | Korea, Republic of (South) | 35.2 | 126.9 | 118 | 726518 |
| Ilgong-ni | city | | Korea, Republic of (South) | 35.2 | 126.9 | 118 | 726518 |
| Ilgwa-ri | city | Cheju-do | Korea, Republic of (South) | 33.2469444 | 126.2244444 | 39 | 17385 |
| Ilgwan | city | Kyongsang-bukto | Korea, Republic of (South) | 36.2833333 | 127.95 | 826 | 18347 |
| Ilgwan-ni | city | Kyongsang-bukto | Korea, Republic of (South) | 36.2833333 | 127.95 | 826 | 18347 |
| Ilgwang | city | Pusan-gwangyoksi | Korea, Republic of (South) | 35.2666667 | 129.2372222 | 3 | 32185 |
| Illam-ni | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.815 | 126.4386111 | 101 | 26000 |
| Illo | city | Cholla-namdo | Korea, Republic of (South) | 34.8519444 | 126.4922222 | 16 | 18191 |
| Illon | city | Kangwon-do | Korea, Republic of (South) | 37.2925 | 128.0197222 | 1489 | 9367 |
| Ilp'yong | city | Cholla-namdo | Korea, Republic of (South) | 34.45 | 126.55 | 49 | 20969 |
| Ilp'yong | city | Cholla-namdo | Korea, Republic of (South) | 34.45 | 126.5666667 | 173 | 20969 |
| Ilp'yong | city | Kyongsang-namdo | Korea, Republic of (South) | 35.0333333 | 127.85 | 98 | 41435 |
| Ilp'yong-ch'on | city | | Korea, Republic of (South) | 35.3333333 | 126.8333333 | 875 | 21816 |
| Ilp'yong-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.4569444 | 126.5541667 | 85 | 20969 |
| Ilp'yong-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.45 | 126.5666667 | 173 | 20969 |
| Ilp'yong-ni | city | | Korea, Republic of (South) | 35.3333333 | 126.8333333 | 875 | 21816 |
| Ilp'yŏng | city | Cholla-namdo | Korea, Republic of (South) | 34.45 | 126.55 | 49 | 20969 |
| Ilp'yŏng | city | Cholla-namdo | Korea, Republic of (South) | 34.45 | 126.5666667 | 173 | 20969 |
| Ilp'yŏng | city | Kyongsang-namdo | Korea, Republic of (South) | 35.0333333 | 127.85 | 98 | 41435 |
| Ilp'yŏng-ch'on | city | | Korea, Republic of (South) | 35.3333333 | 126.8333333 | 875 | 21816 |
| Ilp'yŏng-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.4569444 | 126.5541667 | 85 | 20969 |
| Ilp'yŏng-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.45 | 126.5666667 | 173 | 20969 |
| Ilp'yŏng-ni | city | | Korea, Republic of (South) | 35.3333333 | 126.8333333 | 875 | 21816 |
| Ilsan | city | Kangwon-do | Korea, Republic of (South) | 38.1833333 | 127.8166667 | 1450 | 9258 |
| Ilsan | city | Ulsan-gwangyoksi | Korea, Republic of (South) | 35.5 | 129.4333333 | 3 | 10642 |
| Ilsan Ni | city | Ulsan-gwangyoksi | Korea, Republic of (South) | 35.5 | 129.4333333 | 3 | 10642 |
| Ilsan-dong | city | Kyonggi-do | Korea, Republic of (South) | 37.6869444 | 126.7688889 | 59 | 85730 |
| Ilsan-dong | city | Ulsan-gwangyoksi | Korea, Republic of (South) | 35.5 | 129.4333333 | 3 | 10642 |
| Ilsan-ni | city | Kyonggi-do | Korea, Republic of (South) | 37.6869444 | 126.7688889 | 59 | 85730 |
| Ilsech'on | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.25 | 126.9 | 68 | 26870 |
| Ilsin | city | Cholla-namdo | Korea, Republic of (South) | 34.5833333 | 126.5166667 | 124 | 16558 |
| Ilsin | city | Kyonggi-do | Korea, Republic of (South) | 37.2247222 | 127.5475 | 183 | 90578 |
| Ilsin-ni | city | Cholla-namdo | Korea, Republic of (South) | 34.5833333 | 126.5166667 | 124 | 16558 |
| Ilsungch'on-ni | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.7833333 | 127.2 | 416 | 26684 |
| Ilsŭngch'ŏn-ni | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.7833333 | 127.2 | 416 | 26684 |
| Ilt'aebu | city | Kyongsang-namdo | Korea, Republic of (South) | 35.4 | 128.3666667 | 226 | 42095 |
| Iltae-ri | city | Cholla-bukto | Korea, Republic of (South) | 35.5280556 | 127.6030556 | 1410 | 30241 |