| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 효가동 | city | Gangwon | Korea, Republic of (South) | 37.50 | 129.11 | 42 | 36813 |
| 효가동 (Hyogadong) | city | Gangwon | Korea, Republic of (South) | 37.50 | 129.11 | 42 | 36813 |
| 효갈리 | city | Gyeongbuk | Korea, Republic of (South) | 36.48 | 128.28 | 830 | 6143 |
| 효경골 | city | Hamnam | Korea, Dem. Peoples Rep. of (North) | 40.35 | 128.74 | 16 | 9409 |
| 효경골 | city | Hamnam | Korea, Dem. Peoples Rep. of (North) | 40.61 | 128.88 | 1899 | 10391 |
| 효경상촌 | city | Hambuk | Korea, Dem. Peoples Rep. of (North) | 41.62 | 129.46 | 1669 | 7897 |
| 효경하촌 | city | Hambuk | Korea, Dem. Peoples Rep. of (North) | 41.60 | 129.49 | 830 | 7897 |
| 효계울 | city | Gyeonggi | Korea, Republic of (South) | 37.87 | 126.96 | 410 | 28852 |
| 효곡 | city | Jeonbuk | Korea, Republic of (South) | 35.35 | 126.64 | 200 | 8490 |
| 효곡리 | city | Gyeongbuk | Korea, Republic of (South) | 36.33 | 128.05 | 1669 | 5960 |
| 효교리 | city | Chungnam | Korea, Republic of (South) | 36.72 | 126.69 | 36 | 10495 |
| 효남리 | city | P'yongyang | Korea, Dem. Peoples Rep. of (North) | 38.95 | 125.65 | 16 | 314232 |
| 효녀문 | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 40.49 | 126.78 | 2509 | 7599 |
| 효달리 | city | Hamnam | Korea, Dem. Peoples Rep. of (North) | 40.11 | 127.82 | 830 | 11102 |
| 효대 | city | Gyeongnam | Korea, Republic of (South) | 35.09 | 128.34 | 830 | 14155 |
| 효대박이 | city | Gyeonggi | Korea, Republic of (South) | 37.82 | 127.26 | 1069 | 42339 |
| 효덕 | city | Gwangju | Korea, Republic of (South) | 35.11 | 126.90 | 285 | 437803 |
| 효동 | city | Chungnam | Korea, Republic of (South) | 36.55 | 126.71 | 262 | 23019 |
| 효동 | city | Chungnam | Korea, Republic of (South) | 36.30 | 127.05 | 62 | 7465 |
| 효동 | city | Gyeongnam | Korea, Republic of (South) | 35.20 | 128.84 | 6 | 105022 |
| 효동리 | city | Hamnam | Korea, Dem. Peoples Rep. of (North) | 40.05 | 127.95 | 104 | 13771 |
| 효들 | city | Daejeon | Korea, Republic of (South) | 36.41 | 127.47 | 830 | 228353 |
| 효때배기 | city | Chungbuk | Korea, Republic of (South) | 37.01 | 127.55 | 830 | 15063 |
| 효락리 | city | Gyeongnam | Korea, Republic of (South) | 35.10 | 128.35 | 895 | 19472 |
| 효려동 | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 40.65 | 125.80 | 1669 | 4963 |
| 효례 | city | Jeonnam | Korea, Republic of (South) | 35.09 | 126.75 | 85 | 128944 |
| 효롱동 | city | Jeonnam | Korea, Republic of (South) | 34.98 | 126.77 | 39 | 27387 |
| 효리 | city | Gyeongbuk | Korea, Republic of (South) | 36.03 | 129.02 | 830 | 11972 |
| 효리 | city | Gyeongnam | Korea, Republic of (South) | 35.55 | 127.79 | 830 | 6705 |
| 효림리 | city | Chungnam | Korea, Republic of (South) | 36.67 | 126.76 | 55 | 17803 |
| 효림이 | city | Chungbuk | Korea, Republic of (South) | 36.32 | 127.83 | 830 | 7593 |
| 효막 | city | Jeonnam | Korea, Republic of (South) | 34.98 | 126.82 | 196 | 26913 |
| 효목리 | city | Chungbuk | Korea, Republic of (South) | 36.32 | 127.83 | 1154 | 7721 |
| 효문 | city | Ulsan | Korea, Republic of (South) | 35.56 | 129.37 | 65 | 276147 |
| 효사 | city | Gyeongnam | Korea, Republic of (South) | 35.33 | 128.43 | 252 | 15027 |
| 효선리 | city | Gyeongbuk | Korea, Republic of (South) | 36.27 | 128.78 | 830 | 6854 |
| 효성동 | city | Incheon | Korea, Republic of (South) | 37.53 | 126.70 | 131 | 717255 |
| 효우동 | city | Jeonnam | Korea, Republic of (South) | 34.97 | 126.98 | 324 | 9506 |
| 효자1동 | city | Gangwon | Korea, Republic of (South) | 37.87 | 127.73 | 262 | 116439 |
| 효자1동 | city | Jeonbuk | Korea, Republic of (South) | 35.80 | 127.13 | 223 | 211973 |
| 효자2동 | city | Gangwon | Korea, Republic of (South) | 37.87 | 127.74 | 305 | 116439 |
| 효자2동 | city | Jeonbuk | Korea, Republic of (South) | 35.81 | 127.12 | 111 | 203524 |
| 효자3동 | city | Gangwon | Korea, Republic of (South) | 37.88 | 127.74 | 380 | 117366 |
| 효자3동 | city | Jeonbuk | Korea, Republic of (South) | 35.81 | 127.11 | 111 | 202485 |
| 효자4동 | city | Jeonbuk | Korea, Republic of (South) | 35.82 | 127.08 | 177 | 141713 |
| 효자동 | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 39.78 | 124.95 | 830 | 26361 |
| 효자동 | city | Gangwon | Korea, Republic of (South) | 37.87 | 127.74 | 380 | 116439 |
| 효자동 | city | Jeonbuk | Korea, Republic of (South) | 35.83 | 127.10 | 49 | 139394 |
| 효자동 | city | Gangwon | Korea, Republic of (South) | 37.71 | 127.70 | 308 | 3333 |
| 효자동 | city | Gyeonggi | Korea, Republic of (South) | 37.67 | 126.97 | 1669 | 406793 |
| 효자동 | city | Seoul | Korea, Republic of (South) | 37.58 | 126.97 | 157 | 1392992 |
| 효자동 | city | Gyeongbuk | Korea, Republic of (South) | 36.68 | 128.07 | 830 | 16664 |
| 효자동 (Hyoja-dong) | city | Seoul | Korea, Republic of (South) | 37.58 | 126.97 | 157 | 1392992 |
| 효자동 (Hyojadong) | city | Gyeonggi | Korea, Republic of (South) | 37.67 | 126.97 | 1669 | 406793 |
| 효자리 | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.97 | 127.49 | 830 | 19756 |
| 효자리 | city | Gyeonggi | Korea, Republic of (South) | 37.32 | 127.55 | 187 | 30972 |
| 효자리 | city | Gyeongbuk | Korea, Republic of (South) | 36.41 | 128.39 | 187 | 6854 |
| 효자문 | city | Gyeongbuk | Korea, Republic of (South) | 36.05 | 128.83 | 830 | 8156 |
| 효자문거리 | city | Chungbuk | Korea, Republic of (South) | 37.10 | 128.39 | 918 | 3615 |
| 효자비 | city | Gyeonggi | Korea, Republic of (South) | 37.67 | 126.96 | 830 | 375564 |
| 효자촌 | city | Jeonnam | Korea, Republic of (South) | 34.99 | 126.92 | 219 | 10868 |
| 효자촌 | city | Jeonbuk | Korea, Republic of (South) | 35.87 | 127.65 | 1669 | 5065 |
| 효장리 | city | Yanggang | Korea, Dem. Peoples Rep. of (North) | 41.25 | 128.12 | 2572 | 3735 |
| 효정 | city | Jeonnam | Korea, Republic of (South) | 34.94 | 127.27 | 830 | 11174 |
| 효정 | city | Gyeongnam | Korea, Republic of (South) | 35.55 | 128.45 | 154 | 14006 |
| 효제 | city | Gyeongbuk | Korea, Republic of (South) | 36.48 | 128.28 | 830 | 6181 |
| 효제동 | city | Gangwon | Korea, Republic of (South) | 37.71 | 128.20 | 1066 | 2533 |
| 효제리 | city | Chungnam | Korea, Republic of (South) | 36.50 | 126.82 | 367 | 8478 |
| 효제리 | city | Gyeongbuk | Korea, Republic of (South) | 36.41 | 128.39 | 187 | 6854 |
| 효제암 | city | Chungnam | Korea, Republic of (South) | 36.47 | 127.23 | 367 | 10261 |
| 효죽 | city | Chungbuk | Korea, Republic of (South) | 37.04 | 127.79 | 830 | 6854 |
| 효죽 | city | Gyeonggi | Korea, Republic of (South) | 37.14 | 127.49 | 344 | 8344 |
| 효죽 | city | Gyeonggi | Korea, Republic of (South) | 37.82 | 127.26 | 1069 | 42339 |
| 효죽리 | city | Chungnam | Korea, Republic of (South) | 36.29 | 127.08 | 42 | 8304 |
| 효죽촌 | city | Gangwon | Korea, Republic of (South) | 37.67 | 128.03 | 994 | 2479 |
| 효지 | city | Gyeonggi | Korea, Republic of (South) | 37.33 | 127.55 | 180 | 23209 |
| 효촌 | city | Jeonbuk | Korea, Republic of (South) | 35.63 | 127.35 | 830 | 5821 |
| 효촌리 | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 38.33 | 125.28 | 318 | 21605 |
| 효촌리 | city | Gyeonggi | Korea, Republic of (South) | 37.88 | 126.95 | 383 | 25400 |
| 효평동 | city | Daejeon | Korea, Republic of (South) | 36.40 | 127.46 | 830 | 274433 |
| 효평동 (Hyopyeongdong) | city | Daejeon | Korea, Republic of (South) | 36.40 | 127.46 | 830 | 274433 |
| 효포 | city | Chungnam | Korea, Republic of (South) | 36.43 | 127.15 | 101 | 47295 |
| 효학동 | city | Gyeonggi | Korea, Republic of (South) | 37.01 | 127.03 | 13 | 107729 |
| 효학리 | city | Chungnam | Korea, Republic of (South) | 36.54 | 126.72 | 830 | 20384 |