| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Jach'on | city | Kyongsang-namdo | Korea, Republic of (South) | 34.8094444 | 127.9261111 | 544 | 27919 |
| Jach'ŏn | city | Kyongsang-namdo | Korea, Republic of (South) | 34.8094444 | 127.9261111 | 544 | 27919 |
| Jakuboku | city | Kyongsang-bukto | Korea, Republic of (South) | 36.0311111 | 128.3633333 | 144 | 17700 |
| Jang-jang | city | Kangwon-do | Korea, Republic of (South) | 38.0797222 | 128.6152778 | 72 | 8943 |
| Jangchon Ri | city | Kangwon-do | Korea, Republic of (South) | 38.1436111 | 127.6452778 | 744 | 9262 |
| Jangje Dong | city | Kangwon-do | Korea, Republic of (South) | 38.1777778 | 127.5486111 | 2063 | 9258 |
| Jangsan | city | Cholla-namdo | Korea, Republic of (South) | 34.8644444 | 127.4866667 | 0 | 12192 |
| Jaridae | city | Kyonggi-do | Korea, Republic of (South) | 37.8366667 | 127.4938889 | 400 | 89783 |
| Jasei-ri | city | Kyonggi-do | Korea, Republic of (South) | 37.4480556 | 126.7486111 | 124 | 747236 |
| Jasenjo | city | Kyonggi-do | Korea, Republic of (South) | 37.4480556 | 126.7486111 | 124 | 747236 |
| Jasenjō | city | Kyonggi-do | Korea, Republic of (South) | 37.4480556 | 126.7486111 | 124 | 747236 |
| Jecheon | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 37.1361111 | 128.2119444 | 820 | 20025 |
| Jeika-ri | city | Kangwon-do | Korea, Republic of (South) | 37.4361111 | 129.1836111 | 52 | 4315 |
| Jeisen | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 37.1361111 | 128.2119444 | 820 | 20025 |
| Jeju | city | Cheju-do | Korea, Republic of (South) | 33.5097222 | 126.5219444 | 150 | 15401 |
| Jen-tchoan | city | Inch'on-gwangyoksi | Korea, Republic of (South) | 37.4536111 | 126.7316667 | 29 | 747236 |
| Jenchu | city | Cholla-bukto | Korea, Republic of (South) | 35.8219444 | 127.1488889 | 111 | 28196 |
| Jenzan | city | Kyongsang-bukto | Korea, Republic of (South) | 36.2408333 | 128.2975 | 124 | 17652 |
| Jeogu Ri | city | Kyongsang-namdo | Korea, Republic of (South) | 34.7338889 | 128.6102778 | 275 | 18332 |
| Jeomchon | city | Kyongsang-bukto | Korea, Republic of (South) | 36.5938889 | 128.2013889 | 219 | 17567 |
| Jeonju | city | Cholla-bukto | Korea, Republic of (South) | 35.8219444 | 127.1488889 | 111 | 28196 |
| Jesan | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.6791667 | 126.845 | 75 | 26712 |
| Jeungpyeong | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 36.7847222 | 127.5819444 | 226 | 22148 |
| Ji-do | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 36.8833333 | 128.1333333 | 1263 | 22111 |
| Ji-dō | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 36.8833333 | 128.1333333 | 1263 | 22111 |
| Jifuho | city | Kyongsang-namdo | Korea, Republic of (South) | 34.6333333 | 128.2666667 | 0 | 5251 |
| Jigpo | city | Cholla-namdo | Korea, Republic of (South) | 34.5083333 | 127.7447222 | 124 | 5647 |
| Jiin-ri | city | Kangwon-do | Korea, Republic of (South) | 37.8675 | 128.0163889 | 708 | 9300 |
| Jijin | city | Kyongsang-bukto | Korea, Republic of (South) | 35.8216667 | 128.8241667 | 249 | 22782 |
| Jikei-ri | city | Kyongsang-namdo | Korea, Republic of (South) | 34.9925 | 128.063889 | 341 | 29741 |
| Jimoku-ri | city | Kyonggi-do | Korea, Republic of (South) | 37.2605556 | 126.9397222 | 255 | 90531 |
| Jinchi-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.42 | 126.1677778 | 65 | 17201 |
| Jindo | city | Kyongsang-bukto | Korea, Republic of (South) | 36.1 | 128.4166667 | 288 | 17680 |
| Jindō | city | Kyongsang-bukto | Korea, Republic of (South) | 36.1 | 128.4166667 | 288 | 17680 |
| Jinhae | city | Kyongsang-namdo | Korea, Republic of (South) | 35.1494444 | 128.6597222 | 95 | 26126 |
| Jinhei | city | Kyongsang-namdo | Korea, Republic of (South) | 34.8408333 | 128.3844444 | 6 | 25254 |
| Jinhei-ri | city | Kyongsang-namdo | Korea, Republic of (South) | 34.8408333 | 128.3844444 | 6 | 25254 |
| Jinju | city | Kyongsang-namdo | Korea, Republic of (South) | 35.1927778 | 128.0847222 | 104 | 42203 |
| Jinkyu-ri | city | Kangwon-do | Korea, Republic of (South) | 37.9666667 | 128.7536111 | 19 | 3183 |
| Jinkyū-ri | city | Kangwon-do | Korea, Republic of (South) | 37.9666667 | 128.7536111 | 19 | 3183 |
| Jinnaemi | city | Kangwon-do | Korea, Republic of (South) | 38.0772222 | 127.6511111 | 482 | 9275 |
| Jinsen | city | Inch'on-gwangyoksi | Korea, Republic of (South) | 37.4536111 | 126.7316667 | 29 | 747236 |
| Jisaku-ri | city | Kyonggi-do | Korea, Republic of (South) | 37.8666667 | 127.1666667 | 341 | 89822 |
| Jisen-do | city | Kyongsang-bukto | Korea, Republic of (South) | 36.1105556 | 128.9208333 | 534 | 17680 |
| Jisen-dō | city | Kyongsang-bukto | Korea, Republic of (South) | 36.1105556 | 128.9208333 | 534 | 17680 |
| Jitsuhei-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.45 | 126.5666667 | 173 | 20969 |
| Jitsuhei-ri | city | | Korea, Republic of (South) | 35.3333333 | 126.8333333 | 875 | 21816 |
| Jo-daisei-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.6136111 | 126.0730556 | 45 | 7096 |
| Jo-daito-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.5875 | 126.0930556 | 39 | 5764 |
| Jo-daiwa | city | Kangwon-do | Korea, Republic of (South) | 37.5 | 128.4666667 | 2181 | 9346 |
| Jo-horin | city | Kangwon-do | Korea, Republic of (South) | 37.435 | 128.4225 | 1669 | 9350 |
| Jodo-cho | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.4833333 | 126.95 | 137 | 1852178 |
| Jodo-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.1833333 | 126.9 | 95 | 5386 |
| Jodo-ri | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.4833333 | 126.95 | 137 | 1852178 |
| Joei-ri | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 37.0666667 | 127.9333333 | 354 | 21968 |
| Joga-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.5291667 | 126.6377778 | 364 | 21301 |
| Jogan-ri | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.25 | 126.9 | 68 | 26870 |
| Jogo-ri | city | Cholla-namdo | Korea, Republic of (South) | 35.3452778 | 126.8211111 | 331 | 21991 |
| Johachi | city | Cholla-namdo | Korea, Republic of (South) | 34.6 | 126.9833333 | 213 | 15156 |
| Johatsu-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.6 | 126.9833333 | 213 | 15156 |
| Johon-do | city | Kyongsang-bukto | Korea, Republic of (South) | 36.1166667 | 128.7 | 570 | 17680 |
| Joitocho | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.5333333 | 126.9166667 | 52 | 2056407 |
| Joitōchō | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.5333333 | 126.9166667 | 52 | 2056407 |
| Jokanden-ri | city | Kangwon-do | Korea, Republic of (South) | 38.1547222 | 128.0141667 | 967 | 9262 |
| Joki-do | city | Kyongsang-bukto | Korea, Republic of (South) | 36.6666667 | 128.7 | 492 | 17549 |
| Jokin-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.6180556 | 126.945 | 39 | 20204 |
| Jokochi | city | Cholla-namdo | Korea, Republic of (South) | 34.4058333 | 126.8694444 | 0 | 9960 |
| Jokodo | city | Kangwon-do | Korea, Republic of (South) | 38.2880556 | 128.1383333 | 1394 | 9392 |
| Jokyo-ri | city | Pusan-gwangyoksi | Korea, Republic of (South) | 35.0666667 | 128.85 | 0 | 16492 |
| Jonan | city | Kyongsang-namdo | Korea, Republic of (South) | 35.7336111 | 127.6741667 | 1833 | 32070 |
| Jonan | city | Pusan-gwangyoksi | Korea, Republic of (South) | 35.1666667 | 128.9166667 | 6 | 107066 |
| Jonan-do | city | Kyongsang-namdo | Korea, Republic of (South) | 35.4166667 | 128.2666667 | 538 | 42071 |
| Jonan-ri | city | Kyongsang-namdo | Korea, Republic of (South) | 35.7336111 | 127.6741667 | 1833 | 32070 |
| Jonando | city | Kyongsang-namdo | Korea, Republic of (South) | 35.2166667 | 128.5833333 | 3 | 39561 |
| Jonanto-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.4 | 126.05 | 0 | 2312 |
| Josa | city | | Korea, Republic of (South) | 35.1833333 | 127.4 | 761 | 21256 |
| Josa-ri | city | Kyongsang-bukto | Korea, Republic of (South) | 36.8330556 | 129.4394444 | 0 | 5790 |
| Josan | city | Cheju-do | Korea, Republic of (South) | 33.4608333 | 126.9325 | 0 | 10735 |
| Josan-ri | city | Cheju-do | Korea, Republic of (South) | 33.4608333 | 126.9325 | 0 | 10735 |
| Josan-ri | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 36.0947222 | 127.6838889 | 505 | 22338 |
| Josan-ri | city | Kangwon-do | Korea, Republic of (South) | 37.7666667 | 127.9666667 | 538 | 9308 |
| Josan-ri | city | Kangwon-do | Korea, Republic of (South) | 37.62 | 129.055 | 0 | 5643 |
| Josanri | city | Kyongsang-namdo | Korea, Republic of (South) | 35.2166667 | 128.5833333 | 3 | 39561 |
| Josen | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.0758333 | 126.6941667 | 42 | 23417 |
| Joshin-ri | city | Kyongsang-namdo | Korea, Republic of (South) | 34.8627778 | 128.097222 | 0 | 8175 |
| Joson-ri | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.6025 | 126.5497222 | 101 | 25413 |
| Jotaika | city | Kangwon-do | Korea, Republic of (South) | 37.5 | 128.4666667 | 2181 | 9346 |
| Jotei | city | | Korea, Republic of (South) | 35.9166667 | 126.6333333 | 3 | 18343 |
| Jotei-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.3733333 | 126.7791667 | 3 | 9515 |
| Joto-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.5833333 | 126.55 | 32 | 19637 |
| Jotoku-do | city | Cholla-namdo | Korea, Republic of (South) | 34.3666667 | 126.9 | 255 | 7290 |
| Joumpo-ri | city | Kangwon-do | Korea, Republic of (South) | 38.0333333 | 128.7 | 91 | 6706 |
| Joyo | city | Kangwon-do | Korea, Republic of (South) | 38.0797222 | 128.6152778 | 72 | 8943 |
| Joyu | city | Cheju-do | Korea, Republic of (South) | 33.3858333 | 126.7983333 | 367 | 33780 |
| Joyu-ri | city | Cheju-do | Korea, Republic of (South) | 33.3858333 | 126.7983333 | 367 | 33780 |
| Jozanho | city | Cheju-do | Korea, Republic of (South) | 33.4608333 | 126.9325 | 0 | 10735 |
| Jozankei | city | Cheju-do | Korea, Republic of (South) | 33.4608333 | 126.9325 | 0 | 10735 |
| Jozanri | city | Cheju-do | Korea, Republic of (South) | 33.4608333 | 126.9325 | 0 | 10735 |
| Jozanri | city | Kangwon-do | Korea, Republic of (South) | 37.7666667 | 127.9666667 | 538 | 9308 |
| Jozanri | city | Kangwon-do | Korea, Republic of (South) | 37.62 | 129.055 | 0 | 5643 |
| Judae | city | Kangwon-do | Korea, Republic of (South) | 38.2011111 | 127.5977778 | 1286 | 9258 |
| Jugpo | city | Cholla-namdo | Korea, Republic of (South) | 34.6422222 | 127.7808333 | 22 | 10971 |
| Juiki-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.5 | 126.25 | 383 | 18606 |
| Jujo | city | Cholla-namdo | Korea, Republic of (South) | 34.5 | 126.25 | 383 | 18606 |
| Jujo | city | Taejon-gwangyoksi | Korea, Republic of (South) | 36.3538889 | 127.3366667 | 137 | 280855 |
| Jujō | city | Cholla-namdo | Korea, Republic of (South) | 34.5 | 126.25 | 383 | 18606 |
| Jujō | city | Taejon-gwangyoksi | Korea, Republic of (South) | 36.3538889 | 127.3366667 | 137 | 280855 |
| Junch'ang | city | Cholla-bukto | Korea, Republic of (South) | 35.3736111 | 127.1427778 | 252 | 27788 |
| Jung-ang | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.5833333 | 126.9666667 | 164 | 2022360 |
| Jungkuke | city | | Korea, Republic of (South) | 35.5166667 | 127.4166667 | 662 | 28299 |
| Jungpyong | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 36.7847222 | 127.5819444 | 226 | 22148 |
| Junichishi | city | Cholla-namdo | Korea, Republic of (South) | 34.4 | 126.2 | 134 | 16097 |
| Junko | city | Kyongsang-bukto | Korea, Republic of (South) | 36.9166667 | 128.5833333 | 816 | 18430 |
| Junkok-ri | city | | Korea, Republic of (South) | 35.25 | 126.8833333 | 59 | 707983 |
| Junkok-ri | city | Kyongsang-namdo | Korea, Republic of (South) | 35.25 | 128.3833333 | 65 | 42180 |
| Junkok-ri | city | Kyongsang-bukto | Korea, Republic of (South) | 36.2833333 | 129.25 | 2208 | 17644 |
| Junkō | city | Kyongsang-bukto | Korea, Republic of (South) | 36.9166667 | 128.5833333 | 816 | 18430 |
| Junsho | city | Cholla-bukto | Korea, Republic of (South) | 35.3736111 | 127.1427778 | 252 | 27788 |
| Junshō | city | Cholla-bukto | Korea, Republic of (South) | 35.3736111 | 127.1427778 | 252 | 27788 |
| Junten | city | Cholla-namdo | Korea, Republic of (South) | 34.9511111 | 127.4883333 | 9 | 21242 |
| Jurin-ri | city | Kyonggi-do | Korea, Republic of (South) | 37.4480556 | 126.8808333 | 36 | 879730 |
| Jutsueki | city | Kyongsang-namdo | Korea, Republic of (South) | 34.85 | 128.4833333 | 127 | 24102 |
| Jutsuka | city | | Korea, Republic of (South) | 34.9833333 | 127.9166667 | 0 | 23396 |
| Jō-daisei-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.6136111 | 126.0730556 | 45 | 7096 |
| Jō-daitō-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.5875 | 126.0930556 | 39 | 5764 |
| Jō-daiwa | city | Kangwon-do | Korea, Republic of (South) | 37.5 | 128.4666667 | 2181 | 9346 |
| Jō-horin | city | Kangwon-do | Korea, Republic of (South) | 37.435 | 128.4225 | 1669 | 9350 |
| Jōdō-chō | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.4833333 | 126.95 | 137 | 1852178 |
| Jōdō-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.1833333 | 126.9 | 95 | 5386 |
| Jōdō-ri | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.4833333 | 126.95 | 137 | 1852178 |
| Jōei-ri | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 37.0666667 | 127.9333333 | 354 | 21968 |
| Jōga-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.5291667 | 126.6377778 | 364 | 21301 |
| Jōgan-ri | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.25 | 126.9 | 68 | 26870 |
| Jōgo-ri | city | Cholla-namdo | Korea, Republic of (South) | 35.3452778 | 126.8211111 | 331 | 21991 |
| Jōhachi | city | Cholla-namdo | Korea, Republic of (South) | 34.6 | 126.9833333 | 213 | 15156 |
| Jōhatsu-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.6 | 126.9833333 | 213 | 15156 |
| Jōhon-dō | city | Kyongsang-bukto | Korea, Republic of (South) | 36.1166667 | 128.7 | 570 | 17680 |
| Jōkanden-ri | city | Kangwon-do | Korea, Republic of (South) | 38.1547222 | 128.0141667 | 967 | 9262 |
| Jōki-dō | city | Kyongsang-bukto | Korea, Republic of (South) | 36.6666667 | 128.7 | 492 | 17549 |
| Jōkin-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.6180556 | 126.945 | 39 | 20204 |
| Jōkochi | city | Cholla-namdo | Korea, Republic of (South) | 34.4058333 | 126.8694444 | 0 | 9960 |
| Jōkyo-ri | city | Pusan-gwangyoksi | Korea, Republic of (South) | 35.0666667 | 128.85 | 0 | 16492 |
| Jōkōdō | city | Kangwon-do | Korea, Republic of (South) | 38.2880556 | 128.1383333 | 1394 | 9392 |
| Jōnan | city | Kyongsang-namdo | Korea, Republic of (South) | 35.7336111 | 127.6741667 | 1833 | 32070 |
| Jōnan | city | Pusan-gwangyoksi | Korea, Republic of (South) | 35.1666667 | 128.9166667 | 6 | 107066 |
| Jōnan-dō | city | Kyongsang-namdo | Korea, Republic of (South) | 35.4166667 | 128.2666667 | 538 | 42071 |
| Jōnan-ri | city | Kyongsang-namdo | Korea, Republic of (South) | 35.7336111 | 127.6741667 | 1833 | 32070 |
| Jōnandō | city | Kyongsang-namdo | Korea, Republic of (South) | 35.2166667 | 128.5833333 | 3 | 39561 |
| Jōnantō-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.4 | 126.05 | 0 | 2312 |
| Jōsa-ri | city | Kyongsang-bukto | Korea, Republic of (South) | 36.8330556 | 129.4394444 | 0 | 5790 |
| Jōsan | city | Cheju-do | Korea, Republic of (South) | 33.4608333 | 126.9325 | 0 | 10735 |
| Jōsan-ri | city | Cheju-do | Korea, Republic of (South) | 33.4608333 | 126.9325 | 0 | 10735 |
| Jōsan-ri | city | Kangwon-do | Korea, Republic of (South) | 37.7666667 | 127.9666667 | 538 | 9308 |
| Jōsanri | city | Kyongsang-namdo | Korea, Republic of (South) | 35.2166667 | 128.5833333 | 3 | 39561 |
| Jōshin-ri | city | Kyongsang-namdo | Korea, Republic of (South) | 34.8627778 | 128.097222 | 0 | 8175 |
| Jōson-ri | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.6025 | 126.5497222 | 101 | 25413 |
| Jōtei | city | | Korea, Republic of (South) | 35.9166667 | 126.6333333 | 3 | 18343 |
| Jōtei-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.3733333 | 126.7791667 | 3 | 9515 |
| Jōtoku-dō | city | Cholla-namdo | Korea, Republic of (South) | 34.3666667 | 126.9 | 255 | 7290 |
| Jōtō-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.5833333 | 126.55 | 32 | 19637 |
| Jōyō | city | Kangwon-do | Korea, Republic of (South) | 38.0797222 | 128.6152778 | 72 | 8943 |
| Jōyū | city | Cheju-do | Korea, Republic of (South) | 33.3858333 | 126.7983333 | 367 | 33780 |
| Jōyū-ri | city | Cheju-do | Korea, Republic of (South) | 33.3858333 | 126.7983333 | 367 | 33780 |
| Jōzanri | city | Cheju-do | Korea, Republic of (South) | 33.4608333 | 126.9325 | 0 | 10735 |
| Jūnichishi | city | Cholla-namdo | Korea, Republic of (South) | 34.4 | 126.2 | 134 | 16097 |
| Jūrin-ri | city | Kyonggi-do | Korea, Republic of (South) | 37.4480556 | 126.8808333 | 36 | 879730 |