Kamagaya: population and official figures
In depth
- Economy, jobs and prices in Kamagaya: Taxable income for municipal resident tax in Kamagaya averaged 3.73 million yen per taxpayer in fiscal 2024, 113th highest 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 Kamagaya: Kamagaya had 5 general hospitals (hospitals other than psychiatric ones) in 2023, or 4.55 per 100,000 residents, 116th lowest of 262 cities, below the national figure (5.60).
- Education in Kamagaya: Kamagaya had 9 primary schools with 4,880 pupils and 296 full-time teachers in May 2024.
- Poverty and living standards in Kamagaya: 32.6% of private households in Kamagaya were one-person households at the 2020 census (15,371), 85th lowest of 262 cities, below the national figure (38.0%).
- Government budget and revenue in Kamagaya: The municipal government of Kamagaya took in 43.5 billion yen in fiscal 2022 (final accounts), 395,326 yen per resident, 39th lowest of 262 cities.
What is the population of Kamagaya?
Kamagaya had 109,932 residents at the 1 October 2020 census (city proper). That is 23rd lowest of 262 cities. The count includes foreign residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow big is Kamagaya and how densely populated is it?
Kamagaya covers 21.08 square kilometres (2024), of which 19.83 is habitable land. That is 5,215 people per square kilometre of total area at the 2020 census, 57th highest of 262 for density.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyIs the population of Kamagaya growing or shrinking?
The basic resident register recorded 109,757 residents in Kamagaya in 2024, 0.2% 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 Kamagaya?
11.4% of residents of Kamagaya were under 15 (12,558 children) and 57.9% 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 Kamagaya?
Kamagaya had 47,146 households at the 2020 census, of which 47,094 were private households; that is about 2.33 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 Kamagaya?
1,488 foreign nationals lived in Kamagaya at the 2020 census, 1.4% 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 Kamagaya each year?
Kamagaya recorded 579 births and 1,301 deaths in 2023, a natural decrease of 722. That is 5.3 births and 11.8 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 Kamagaya?
In 2024, 5,085 people moved into Kamagaya from other municipalities and 4,793 moved out, a net gain of 292 (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 Kamagaya each year?
Kamagaya registered 399 marriages and 175 divorces by Japanese nationals in 2023, or 3.6 marriages per 1,000 residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyWho runs Kamagaya?
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
- Hikone 113,647
- Nagahama 113,636
- Fujimino 113,597
- Oshu 112,937
- Higashiomi 112,819
- Ichinoseki 111,932
- Fujimi 111,859
- Kazo 111,623
- Otaru 111,299
- Omuta 111,281
- Kasuga 111,023
- Hakusan 110,408
- Marugame 109,513
- Sanda 109,238
- Habikino 108,736
- Tondabayashi 108,699
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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