Kumagaya: population and official figures
In depth
- Economy, jobs and prices in Kumagaya: Taxable income for municipal resident tax in Kumagaya averaged 3.63 million yen per taxpayer in fiscal 2024, 126th lowest of 262 cities and below 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 Kumagaya: Kumagaya had 10 general hospitals (hospitals other than psychiatric ones) in 2023, or 5.14 per 100,000 residents, 122nd highest of 262 cities, below the national figure (5.60).
- Education in Kumagaya: Kumagaya had 29 primary schools with 8,536 pupils and 643 full-time teachers in May 2024.
- Poverty and living standards in Kumagaya: 30.7% of private households in Kumagaya were one-person households at the 2020 census (24,587), 55th lowest of 262 cities, below the national figure (38.0%).
- Government budget and revenue in Kumagaya: The municipal government of Kumagaya took in 77.3 billion yen in fiscal 2022 (final accounts), 397,562 yen per resident, 43rd lowest of 262 cities.
What is the population of Kumagaya?
Kumagaya had 194,415 residents at the 1 October 2020 census (city proper). That is 118th highest of 262 cities. The count includes foreign residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow big is Kumagaya and how densely populated is it?
Kumagaya covers 159.82 square kilometres (2024), of which 155.53 is habitable land. That is 1,216 people per square kilometre of total area at the 2020 census, 123rd lowest of 262 for density.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyIs the population of Kumagaya growing or shrinking?
The basic resident register recorded 190,927 residents in Kumagaya in 2024, 1.8% fewer 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 Kumagaya?
11.2% of residents of Kumagaya were under 15 (21,814 children) and 58.5% 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 Kumagaya?
Kumagaya had 80,153 households at the 2020 census, of which 79,976 were private households; that is about 2.43 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 Kumagaya?
3,076 foreign nationals lived in Kumagaya at the 2020 census, 1.6% 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 Kumagaya each year?
Kumagaya recorded 909 births and 2,582 deaths in 2023, a natural decrease of 1,673. That is 4.7 births and 13.3 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 Kumagaya?
In 2024, 7,496 people moved into Kumagaya from other municipalities and 7,491 moved out, a net gain of 5 (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 Kumagaya each year?
Kumagaya registered 650 marriages and 267 divorces by Japanese nationals in 2023, or 3.3 marriages per 1,000 residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyWho runs Kumagaya?
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
- Ota 223,014
- Kure 214,592
- Isesaki 211,850
- Nishitokyo 207,388
- Matsue 203,616
- Nagareyama 199,849
- Yachiyo 199,498
- Kodaira 198,739
- Itami 198,138
- Higashihiroshima 196,608
- Suzuka 195,670
- Mitaka 195,391
- Yamaguchi 193,966
- Kishiwada 190,658
- Hino 190,435
- Kofu 189,591
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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