Map of Isahaya, Japan

Isahaya is a city in Nagasaki, Japan, with a population of about 135,546. It lies at 32.8411°N, 130.0431°E. Isahaya is about 941 km (585 mi) west of Tokyo, the capital. The nearest city on our map is Ōmura, 12 km to the northwest.

Isahaya at a glance

Where is Isahaya?

• The 3rd largest city in Nagasaki on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 59 min on the shortest day to 14 h 19 min on the longest day (around 21 December and 21 June).

Cities near Isahaya

• Ōmura — 12 km northwest
• Obita — 15 km west
• Nagasaki — 18 km southwest
• Unzen — 21 km east
• Minamishimabara — 28 km southeast
• Shimabara — 31 km east
• Takeo — 39 km north
• Arao — 41 km east
• Ōmuta — 44 km northeast
• Hondomachi-hondo — 44 km south

Largest cities in Nagasaki

• Nagasaki — 409,118
• Sasebo — 243,223
• 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.