Kamikoizumi Population 2026
Kamikoizumi has a population of 42,089, making it the #647 biggest city in 🇯🇵 Japan, located in Gunma. It is about 231× smaller than Tokyo, the country's biggest city.
Population (city proper)
42,089
Rank in Japan
#647
Coordinates
36.26°N, 139.43°E
~26 m elevation · Asia/Tokyo
Distance to capital (Tokyo)
68 km
42 miles, straight line
Other big cities in Gunma
Cities near Kamikoizumi
FAQ
What is the population of Kamikoizumi?
Kamikoizumi has a population of 42,089 (city proper, latest official figure via GeoNames), making it the #647 biggest city in Japan.
What region is Kamikoizumi in?
Kamikoizumi is located in Gunma, Japan.
Is Kamikoizumi the capital of Japan?
No, the capital of Japan is Tokyo, about 68 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.