Arai Population 2026
Arai has a population of 27,481, making it the #889 biggest city in 🇯🇵 Japan, located in Niigata. It is about 354× smaller than Tokyo, the country's biggest city.
Population (city proper)
27,481
Rank in Japan
#889
Coordinates
37.00°N, 138.23°E
~175 m elevation · Asia/Tokyo
Distance to capital (Tokyo)
196 km
122 miles, straight line
Other big cities in Niigata
| City | Population | Rank in Japan |
|---|---|---|
| Niigata | 797,591 | #16 |
| Nagaoka | 266,936 | #90 |
| Jōetsu | 189,430 | #131 |
| Shibata | 96,236 | #282 |
| Sanjō | 94,642 | #290 |
| Kashiwazaki | 86,183 | #318 |
| Tsubame | 77,382 | #355 |
| Niitsu-honchō | 65,910 | #424 |
Cities near Arai
FAQ
What is the population of Arai?
Arai has a population of 27,481 (city proper, latest official figure via GeoNames), making it the #889 biggest city in Japan.
What region is Arai in?
Arai is located in Niigata, Japan.
Is Arai the capital of Japan?
No, the capital of Japan is Tokyo, about 196 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.