Map of Tomioka, Japan

Tomioka is a city in Gunma, Japan, with a population of about 47,911. It lies at 36.2541°N, 138.8981°E. Tomioka is about 95 km (59 mi) northwest of Tokyo, the capital. The nearest city on our map is Annaka, 8 km to the north.

Tomioka at a glance

Where is Tomioka?

• The 11th largest city in Gunma on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 41 min on the shortest day to 14 h 38 min on the longest day (around 21 December and 21 June).

Cities near Tomioka

• Annaka — 8 km north
• Takasaki — 14 km northeast
• Fujioka — 16 km east
• Kanekomachi — 20 km northeast
• Tamamura — 20 km east
• Maebashi — 23 km northeast
• Honjō — 26 km east
• Shibukawa — 27 km north
• Isesaki — 28 km east
• Chichibu — 33 km southeast

Largest cities in Gunma

• Takasaki — 372,973
• Maebashi — 332,149
• Ōta — 224,358
• Isesaki — 211,850
• Kiryū — 108,991
• Tatebayashi — 81,274
• Shibukawa — 76,098
• Fujioka — 64,539
• Annaka — 57,013
• Midori — 50,266

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.