Explore details about location 国道２０４号. 国道２０４号 is a location situated within the 佐世保市 alongside other areas such as 佐世保日野松浦線, 国道205号 針尾バイパス, 志方江迎線. Additionally, some smaller parts of 国道２０４号 include specific areas like 国道４９８号, 佐世保世知原線 adding to the diversity of its landscape.