Kokubunji Population 2026
Kokubunji has a population of 129,242, making it the #207 biggest city in 🇯🇵 Japan, located in Tokyo. Roughly 0.1% of Japan's population lives here. It is about 75× smaller than Tokyo, the country's biggest city.
Population (city proper)
129,242
Rank in Japan
#207
Coordinates
35.70°N, 139.48°E
~78 m elevation · Asia/Tokyo
Distance to capital (Tokyo)
20 km
12 miles, straight line
Other big cities in Tokyo
| City | Population | Rank in Japan |
|---|---|---|
| Tokyo | 9,733,276 | #1 |
| Ōta | 748,081 | #18 |
| Hachiōji | 579,355 | #26 |
| Katsushika | 453,093 | #39 |
| Machida | 431,079 | #42 |
| Kita | 332,140 | #70 |
| Fuchū | 262,790 | #92 |
| Minato City | 260,486 | #94 |
Cities near Kokubunji
FAQ
What is the population of Kokubunji?
Kokubunji has a population of 129,242 (city proper, latest official figure via GeoNames), making it the #207 biggest city in Japan.
What region is Kokubunji in?
Kokubunji is located in Tokyo, Japan.
Is Kokubunji the capital of Japan?
No, the capital of Japan is Tokyo, about 20 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.