| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 효가동 | city | Kangwon-do | Korea, Republic of (South) | 37.50 | 129.11 | 42 | 36813 |
| 효갈리 | city | Kyongsang-bukto | Korea, Republic of (South) | 36.48 | 128.28 | 429 | 6143 |
| 효경골 | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.35 | 128.74 | 16 | 9409 |
| 효경골 | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.61 | 128.88 | 1899 | 10391 |
| 효경상촌 | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.62 | 129.46 | 1492 | 7897 |
| 효경하촌 | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.60 | 129.49 | 793 | 7897 |
| 효계울 | city | Kyonggi-do | Korea, Republic of (South) | 37.87 | 126.96 | 410 | 28852 |
| 효곡리 | city | Kyongsang-bukto | Korea, Republic of (South) | 36.33 | 128.05 | 1263 | 5960 |
| 효교리 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.72 | 126.69 | 36 | 10495 |
| 효녀문 | city | Chagang-do | Korea, Dem. Peoples Rep. of (North) | 40.49 | 126.78 | 2463 | 7599 |
| 효달리 | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.11 | 127.82 | 472 | 11102 |
| 효대 | city | Kyongsang-namdo | Korea, Republic of (South) | 35.09 | 128.34 | 518 | 14155 |
| 효동 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.55 | 126.71 | 262 | 23019 |
| 효동 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.30 | 127.05 | 62 | 7465 |
| 효동 | city | Taejon-gwangyoksi | Korea, Republic of (South) | 36.31 | 127.45 | 341 | 258272 |
| 효동리 | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.05 | 127.95 | 104 | 13771 |
| 효락리 | city | Kyongsang-namdo | Korea, Republic of (South) | 35.10 | 128.35 | 895 | 19472 |
| 효려동 | city | Chagang-do | Korea, Dem. Peoples Rep. of (North) | 40.65 | 125.80 | 1519 | 4963 |
| 효리 | city | Kyongsang-bukto | Korea, Republic of (South) | 36.03 | 129.02 | 501 | 11972 |
| 효리 | city | Kyongsang-namdo | Korea, Republic of (South) | 35.55 | 127.79 | 551 | 6705 |
| 효림리 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.67 | 126.76 | 55 | 17803 |
| 효림이 | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 36.32 | 127.83 | 695 | 7593 |
| 효목리 | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 36.32 | 127.83 | 1154 | 7721 |
| 효사 | city | Kyongsang-namdo | Korea, Republic of (South) | 35.33 | 128.43 | 252 | 15027 |
| 효선리 | city | Kyongsang-bukto | Korea, Republic of (South) | 36.27 | 128.78 | 800 | 6854 |
| 효성동 | city | Inch'on-gwangyoksi | Korea, Republic of (South) | 37.54 | 126.70 | 131 | 588048 |
| 효자1동 | city | Cholla-bukto | Korea, Republic of (South) | 35.80 | 127.13 | 223 | 211973 |
| 효자2동 | city | Cholla-bukto | Korea, Republic of (South) | 35.81 | 127.12 | 111 | 203524 |
| 효자3동 | city | Cholla-bukto | Korea, Republic of (South) | 35.81 | 127.11 | 111 | 202485 |
| 효자4동 | city | Cholla-bukto | Korea, Republic of (South) | 35.82 | 127.08 | 177 | 141713 |
| 효자동 | city | P'yongan-bukto | Korea, Dem. Peoples Rep. of (North) | 39.78 | 124.95 | 761 | 26361 |
| 효자동 | city | Cholla-bukto | Korea, Republic of (South) | 35.83 | 127.10 | 49 | 139394 |
| 효자동 | city | Kangwon-do | Korea, Republic of (South) | 37.71 | 127.69 | 282 | 3333 |
| 효자동 | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.58 | 126.97 | 164 | 1347733 |
| 효자동 | city | Kyonggi-do | Korea, Republic of (South) | 37.66 | 126.95 | 403 | 438154 |
| 효자리 | city | Kangwon-do | Korea, Dem. Peoples Rep. of (North) | 38.97 | 127.49 | 462 | 19756 |
| 효자리 | city | Kyonggi-do | Korea, Republic of (South) | 37.32 | 127.55 | 187 | 30972 |
| 효자리 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.74 | 126.88 | 472 | 50645 |
| 효자리 | city | Kyongsang-bukto | Korea, Republic of (South) | 36.41 | 128.39 | 187 | 6854 |
| 효자문거리 | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 37.10 | 128.39 | 918 | 3615 |
| 효자비 | city | Kyonggi-do | Korea, Republic of (South) | 37.67 | 126.96 | 524 | 375564 |
| 효자촌 | city | Cholla-bukto | Korea, Republic of (South) | 35.87 | 127.65 | 1309 | 5065 |
| 효정 | city | Cholla-namdo | Korea, Republic of (South) | 34.94 | 127.27 | 731 | 11174 |
| 효정리 | city | Kyongsang-namdo | Korea, Republic of (South) | 35.55 | 128.45 | 154 | 14006 |
| 효제 | city | Kyongsang-bukto | Korea, Republic of (South) | 36.48 | 128.28 | 429 | 6181 |
| 효제동 | city | Kangwon-do | Korea, Republic of (South) | 37.71 | 128.20 | 1066 | 2533 |
| 효제리 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.50 | 126.82 | 367 | 8478 |
| 효제리 | city | Kyongsang-bukto | Korea, Republic of (South) | 36.41 | 128.39 | 187 | 6854 |
| 효제암 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.47 | 127.23 | 367 | 10261 |
| 효죽 | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 37.04 | 127.79 | 449 | 6854 |
| 효죽 | city | Kyonggi-do | Korea, Republic of (South) | 37.13 | 127.49 | 515 | 8344 |
| 효죽 | city | Kyonggi-do | Korea, Republic of (South) | 37.82 | 127.26 | 711 | 42339 |
| 효죽리 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.29 | 127.08 | 42 | 8304 |
| 효죽촌 | city | Kangwon-do | Korea, Republic of (South) | 37.67 | 128.03 | 994 | 2479 |
| 효지 | city | Kyonggi-do | Korea, Republic of (South) | 37.33 | 127.55 | 180 | 23209 |
| 효창동 | city | Soul-t'ukpyolsi | Korea, Republic of (South) | 37.54 | 126.96 | 72 | 1478825 |
| 효촌 | city | Cholla-bukto | Korea, Republic of (South) | 35.63 | 127.35 | 807 | 5821 |
| 효촌리 | city | Hwanghae-namdo | Korea, Dem. Peoples Rep. of (North) | 38.33 | 125.28 | 318 | 21605 |
| 효촌리 | city | Kyonggi-do | Korea, Republic of (South) | 37.88 | 126.95 | 383 | 25400 |
| 효평동 | city | Taejon-gwangyoksi | Korea, Republic of (South) | 36.40 | 127.48 | 636 | 224452 |
| 효학동 | city | Kyonggi-do | Korea, Republic of (South) | 37.01 | 127.03 | 9 | 107729 |
| 효학리 | city | Ch'ungch'ong-namdo | Korea, Republic of (South) | 36.54 | 126.72 | 433 | 20384 |