Tomioka Population 2026

Tomioka has a population of 47,911, making it the #583 biggest city in 🇯🇵 Japan, located in Gunma. It is about 203× smaller than Tokyo, the country's biggest city.

Location of Tomioka (capital Tokyo shown for reference). Boundaries: Natural Earth.

Population (city proper)

47,911

Rank in Japan

#583

Coordinates

36.25°N, 138.90°E

~158 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

95 km

59 miles, straight line

Other big cities in Gunma

City	Population	Rank in Japan
Takasaki	372,973	#58
Maebashi	332,149	#69
Ōta	224,358	#111
Isesaki	211,850	#115
Kiryū	108,991	#252
Tatebayashi	81,274	#341
Shibukawa	76,098	#364
Fujioka	64,539	#433

Cities near Tomioka

Yoshii25,655 people · ~8 km away
Annaka57,013 people · ~8 km away
Takasaki372,973 people · ~14 km away
Fujioka64,539 people · ~16 km away
Kanekomachi37,107 people · ~20 km away
Tamamura36,367 people · ~20 km away

FAQ

What is the population of Tomioka?

Tomioka has a population of 47,911 (city proper, latest official figure via GeoNames), making it the #583 biggest city in Japan.

What region is Tomioka in?

Tomioka is located in Gunma, Japan.

Is Tomioka the capital of Japan?

No, the capital of Japan is Tokyo, about 95 km away.

Sources & notes

Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.

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