Map of Sasebo, Japan

Sasebo is a city in Nagasaki, Japan, with a population of about 243,223. It lies at 33.1683°N, 129.7250°E. Sasebo is about 956 km (594 mi) west of Tokyo, the capital. The nearest city on our map is Imarichō-kō, 18 km to the northeast.

Sasebo at a glance

Where is Sasebo?

• The 2nd largest city in Nagasaki on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 57 min on the shortest day to 14 h 21 min on the longest day (around 21 December and 21 June).

Cities near Sasebo

• Imarichō-kō — 18 km northeast
• Takeo — 28 km east
• Ōmura — 35 km southeast
• Karatsu — 38 km northeast
• Obita — 42 km south
• Ogi — 45 km east
• Isahaya — 47 km southeast
• Nagasaki — 49 km south
• Saga — 54 km east
• Itoshima — 60 km northeast

Largest cities in Nagasaki

• Nagasaki — 409,118
• Isahaya — 135,546
• Ōmura — 95,397
• Obita — 45,293
• Shimabara — 43,338
• Minamishimabara — 42,330
• Unzen — 41,096
• Gotō — 34,391

Largest cities in Japan

• Tokyo — 9,733,276
• Yokohama — 3,777,491
• Osaka — 2,753,862
• Nagoya — 2,332,176
• Sapporo — 1,973,832
• Fukuoka — 1,612,392
• Kawasaki — 1,538,262
• Kobe — 1,525,152
• Kyoto — 1,463,723
• Saitama — 1,324,854

Map of Japan and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.