Kodaira: population and official figures
In depth
- Economy, jobs and prices in Kodaira: Taxable income for municipal resident tax in Kodaira averaged 4.40 million yen per taxpayer in fiscal 2024, 27th 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 Kodaira: Kodaira had 8 general hospitals (hospitals other than psychiatric ones) in 2023, or 4.03 per 100,000 residents, 89th lowest of 262 cities, below the national figure (5.60).
- Education in Kodaira: Kodaira had 21 primary schools with 10,874 pupils and 635 full-time teachers in May 2024.
- Poverty and living standards in Kodaira: 41.7% of private households in Kodaira were one-person households at the 2020 census (38,015), 38th highest of 262 cities, above the national figure (38.0%).
- Government budget and revenue in Kodaira: The municipal government of Kodaira took in 89.8 billion yen in fiscal 2022 (final accounts), 451,985 yen per resident, 115th lowest of 262 cities.
What is the population of Kodaira?
Kodaira had 198,739 residents at the 1 October 2020 census (city proper). That is 113th highest of 262 cities. The count includes foreign residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow big is Kodaira and how densely populated is it?
Kodaira covers 20.51 square kilometres (2024), of which 20.45 is habitable land. That is 9,690 people per square kilometre of total area at the 2020 census, 15th highest of 262 for density.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyIs the population of Kodaira growing or shrinking?
The basic resident register recorded 196,799 residents in Kodaira in 2024, 1.0% 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 Kodaira?
12.6% of residents of Kodaira were under 15 (25,072 children) and 61.2% 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 Kodaira?
Kodaira had 91,287 households at the 2020 census, of which 91,125 were private households; that is about 2.18 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 Kodaira?
4,673 foreign nationals lived in Kodaira at the 2020 census, 2.4% of residents, above the national figure (1.9%).
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many babies are born in Kodaira each year?
Kodaira recorded 1,227 births and 2,010 deaths in 2023, a natural decrease of 783. That is 6.2 births and 10.1 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 Kodaira?
In 2024, 10,049 people moved into Kodaira from other municipalities and 9,630 moved out, a net gain of 419 (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 Kodaira each year?
Kodaira registered 619 marriages and 245 divorces by Japanese nationals in 2023, or 3.1 marriages per 1,000 residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyWho runs Kodaira?
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
- Neyagawa 229,733
- Ageo 226,940
- Takarazuka 226,432
- Atsugi 223,705
- Hachinohe 223,415
- Ota 223,014
- Kure 214,592
- Isesaki 211,850
- Nishitokyo 207,388
- Matsue 203,616
- Nagareyama 199,849
- Yachiyo 199,498
- Itami 198,138
- Higashihiroshima 196,608
- Suzuka 195,670
- Mitaka 195,391
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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