Kai Population 2026
Kai has a population of 75,313, making it the #369 biggest city in 🇯🇵 Japan, located in Yamanashi. Roughly 0.1% of Japan's population lives here. It is about 129× smaller than Tokyo, the country's biggest city.
Population (city proper)
75,313
Rank in Japan
#369
Coordinates
35.68°N, 138.51°E
~340 m elevation · Asia/Tokyo
Distance to capital (Tokyo)
107 km
66 miles, straight line
Other big cities in Yamanashi
| City | Population | Rank in Japan |
|---|---|---|
| Kofu | 189,591 | #129 |
| Minami-Alps | 71,618 | #388 |
| Fuefuki | 69,463 | #400 |
| Minamiarupusu | 69,459 | #401 |
| Fujiyoshida | 48,782 | #563 |
| Hokuto | 46,888 | #594 |
| Ryūō | 43,180 | #631 |
| Yamanashi | 33,435 | #765 |
Cities near Kai
- Ryūō43,180 people · ~4 km away
- Kofu189,591 people · ~6 km away
- Nirasaki29,483 people · ~6 km away
- Shōwa20,909 people · ~7 km away
- Minami-Alps71,618 people · ~9 km away
- Minamiarupusu69,459 people · ~9 km away
FAQ
What is the population of Kai?
Kai has a population of 75,313 (city proper, latest official figure via GeoNames), making it the #369 biggest city in Japan.
What region is Kai in?
Kai is located in Yamanashi, Japan.
Is Kai the capital of Japan?
No, the capital of Japan is Tokyo, about 107 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.