Yeonbong-ro 9-gil, Hongcheon-eup, Hongcheon-gun postal codes (58)
On Yeonbong-ro 9-gil in Hongcheon-eup, Hongcheon-gun the postal code depends on the building number: numbers 3–16 use 25146, numbers 17–45 use 25147. Data as of August 2026.
On Yeonbong-ro 9-gil in Hongcheon-eup, Hongcheon-gun the postal code depends on the building number: numbers 3–16 use 25146, numbers 17–45 use 25147. Data as of August 2026.