Map of Tosu, Japan

Tosu is a city in Saga, Japan, with a population of about 74,196. It lies at 33.3667°N, 130.5167°E. Tosu is about 879 km (546 mi) west of Tokyo, the capital. The nearest city on our map is Ogōri, 4 km to the northeast.

Tosu at a glance

Where is Tosu?

• The 3rd largest city in Saga on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 56 min on the shortest day to 14 h 22 min on the longest day (around 21 December and 21 June).

Cities near Tosu

• Ogōri — 4 km northeast
• Kurume — 6 km south
• Amagi — 14 km northeast
• Chikushino-shi — 14 km north
• Dazaifu — 16 km north
• Chikugo — 18 km south
• Kasuga — 18 km north
• Asakura — 19 km east
• Yame — 20 km southeast
• Ōkawa — 22 km southwest

Largest cities in Saga

• Saga — 233,301
• Karatsu — 117,663
• Imarichō-kō — 57,940
• Takeo — 47,914
• Ogi — 43,952

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.