홍성금마우체국
16 Geumbuk-ro, Geumma-myeon, Hongseong
충남도청우편취급국
1층 107호, 21 Hongbuk-eup, Chungnam-daero, Hongseong
Hongbuk Post Office
447 Hongbuk-ro, Hongbuk-eup, Hongseong
광천우체국
683 Hongnam-ro, Gwangcheon-eup, Hongseong
Honseong Post Office
111 Naepo-ro, Hongseong-eup, Hongseong
장곡우체국
1 Hongnamdong-ro 474beon-gil, Janggok-myeon, Hongseong
결성우체국
1 Guseongnam-ro, Gyeolseong-myeon, Hongseong
갈산우체국
98-1 Galsan-ro, Galsan-myeon, Hongseong