Kokubunji: population and official figures
In depth
- Economy, jobs and prices in Kokubunji: Taxable income for municipal resident tax in Kokubunji averaged 4.96 million yen per taxpayer in fiscal 2024, 8th highest of 262 cities and above the national average of 3,933.7 thousand yen per taxpayer. It is income before deductions, so it is not take-home pay.
- Health in Kokubunji: Kokubunji had 2 general hospitals (hospitals other than psychiatric ones) in 2023, or 1.55 per 100,000 residents, 2nd lowest of 262 cities, below the national figure (5.60).
- Education in Kokubunji: Kokubunji had 11 primary schools with 6,938 pupils and 374 full-time teachers in May 2024.
- Poverty and living standards in Kokubunji: 46.7% of private households in Kokubunji were one-person households at the 2020 census (29,880), 9th highest of 262 cities, above the national figure (38.0%).
- Government budget and revenue in Kokubunji: The municipal government of Kokubunji took in 57.2 billion yen in fiscal 2022 (final accounts), 442,240 yen per resident, 102nd lowest of 262 cities.
What is the population of Kokubunji?
Kokubunji had 129,242 residents at the 1 October 2020 census (city proper). That is 70th lowest of 262 cities. The count includes foreign residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow big is Kokubunji and how densely populated is it?
Kokubunji covers 11.46 square kilometres (2024), of which 11.43 is habitable land. That is 11,278 people per square kilometre of total area at the 2020 census, 6th highest of 262 for density.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyIs the population of Kokubunji growing or shrinking?
The basic resident register recorded 129,500 residents in Kokubunji in 2024, 0.2% more than the 2020 census count (all municipalities together: -1.4%). The register and the census are counted differently, so the change is indicative.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many children live in Kokubunji?
11.7% of residents of Kokubunji were under 15 (15,082 children) and 63.0% were aged 15 to 64 at the 2020 census; nationally the shares were 11.9% and 57.8%.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many households are there in Kokubunji?
Kokubunji had 63,962 households at the 2020 census, of which 63,916 were private households; that is about 2.02 residents per household (residents divided by all households).
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many foreigners live in Kokubunji?
2,257 foreign nationals lived in Kokubunji at the 2020 census, 1.7% of residents, below the national figure (1.9%).
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many babies are born in Kokubunji each year?
Kokubunji recorded 872 births and 1,178 deaths in 2023, a natural decrease of 306. That is 6.7 births and 9.1 deaths per 1,000 residents (national: 5.8 and 12.5). Births are by Japanese nationals registered in the city.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyAre more people moving into or out of Kokubunji?
In 2024, 8,165 people moved into Kokubunji from other municipalities and 7,247 moved out, a net gain of 918 (moves within the city and from abroad are not counted).
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many marriages are there in Kokubunji each year?
Kokubunji registered 520 marriages and 154 divorces by Japanese nationals in 2023, or 4.0 marriages per 1,000 residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyWho runs Kokubunji?
In Japan, cities and towns are run by municipalities: Mayor and municipal assembly both directly elected for four years. Primary and lower secondary schools, welfare, waste, water, residents' registers, disaster response. Large 'designated cities' (20) take on prefectural tasks and are divided into administrative wards whose heads are officials, not elected.
How local power works in Japan
Cities of a similar size in Japan
- Shunan 137,540
- Minoh 136,868
- Yaizu 136,845
- Ebina 136,516
- Kisarazu 136,166
- Inazawa 134,751
- Isahaya 133,852
- Ome 133,535
- Narita 132,906
- Zama 132,325
- Onomichi 131,170
- Abiko 130,510
- Iwakuni 129,125
- Fujinomiya 128,105
- Seto 127,792
- Osaki 127,330
Up a level: all cities in Japan · Japan · government and power
Sources
- Statistics Bureau of Japan, Ministry of Internal Affairs and Communications: Statistical Observations of Municipalities 2026 (social and demographic statistics, city, ward, town and village data), read 28 October 2026 · saved copy (SHA-256 2cb3d8c51aa1…)
- Statistics Bureau of Japan, Ministry of Internal Affairs and Communications: Statistical Observations of Prefectures 2026 (national figures, "All Japan" row), read 28 October 2026 · saved copy (SHA-256 b69774a5f40c…)
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