Ōta Population 2026
Ōta has a population of 224,358, making it the #111 biggest city in 🇯🇵 Japan, located in Gunma. Roughly 0.2% of Japan's population lives here. It is about 43× smaller than Tokyo, the country's biggest city.
Population (city proper)
224,358
Rank in Japan
#111
Coordinates
36.30°N, 139.37°E
~50 m elevation · Asia/Tokyo
Distance to capital (Tokyo)
74 km
46 miles, straight line
Other big cities in Gunma
Cities near Ōta
- Kamikoizumi42,089 people · ~7 km away
- Ashikaga144,746 people · ~8 km away
- Menuma27,684 people · ~9 km away
- Sakai-nakajima31,268 people · ~11 km away
- Kiryū108,991 people · ~12 km away
- Isesaki211,850 people · ~15 km away
FAQ
What is the population of Ōta?
Ōta has a population of 224,358 (city proper, latest official figure via GeoNames), making it the #111 biggest city in Japan.
What region is Ōta in?
Ōta is located in Gunma, Japan.
Is Ōta the capital of Japan?
No, the capital of Japan is Tokyo, about 74 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.