National Route 204 is a national highway of

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

connecting Karatsu and

Sasebo is a core city located in Nagasaki Prefecture, Japan. It is the second-largest city in Nagasaki Prefecture, after its capital, Nagasaki. , the city had an estimated population of 230,873 in 102,670 households, and a population density of 540 per ...

in Japan, with a total length of 157 km (97.56 mi).

References

National highways of Japan Roads in Nagasaki Prefecture Roads in Saga Prefecture 1953 establishments in Japan {{Japan-road-stub