| Anheung-myeon, Hoengseong (안흥면) |
25266, 25268, 25269, 25270, 25271 |
| Cheongil-myeon, Hoengseong (청일면) |
25253, 25254, 25255, 25256 |
| Dunnae-myeon, Hoengseong (둔내면) |
25260, 25261, 25262, 25263, 25264, … |
| Gangnim-myeon, Hoengseong (강림면) |
25272, 25273 |
| Gapcheon-myeon, Hoengseong (갑천면) |
25251, 25252, 25257, 25258, 25259 |
| Gonggeun-myeon, Hoengseong (공근면) |
25200, 25203, 25204, 25205, 25206, … |
| Hoengseong-eup, Hoengseong (횡성읍) |
25210, 25211, 25212, 25213, 25214, … |
| Seowon-myeon, Hoengseong (서원면) |
25200, 25201, 25202 |
| Ucheon-myeon, Hoengseong (우천면) |
25243, 25244, 25245, 25246, 25247, … |