Ōmamachō-ōmama Population 2026
Ōmamachō-ōmama has a population of 21,286, making it the #1030 biggest city in 🇯🇵 Japan, located in Gunma. It is about 457× smaller than Tokyo, the country's biggest city.
Population (city proper)
21,286
Rank in Japan
#1030
Coordinates
36.43°N, 139.28°E
~182 m elevation · Asia/Tokyo
Distance to capital (Tokyo)
91 km
57 miles, straight line
Other big cities in Gunma
Cities near Ōmamachō-ōmama
FAQ
What is the population of Ōmamachō-ōmama?
Ōmamachō-ōmama has a population of 21,286 (city proper, latest official figure via GeoNames), making it the #1030 biggest city in Japan.
What region is Ōmamachō-ōmama in?
Ōmamachō-ōmama is located in Gunma, Japan.
Is Ōmamachō-ōmama the capital of Japan?
No, the capital of Japan is Tokyo, about 91 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.