Iizuka: population and official figures
In depth
- Economy, jobs and prices in Iizuka: Taxable income for municipal resident tax in Iizuka averaged 3.21 million yen per taxpayer in fiscal 2024, 26th 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 Iizuka: Iizuka had 10 general hospitals (hospitals other than psychiatric ones) in 2023, or 7.91 per 100,000 residents, 39th highest of 262 cities, above the national figure (5.60).
- Education in Iizuka: Iizuka had 20 primary schools with 6,707 pupils and 446 full-time teachers in May 2024.
- Poverty and living standards in Iizuka: 38.7% of private households in Iizuka were one-person households at the 2020 census (21,515), 69th highest of 262 cities, above the national figure (38.0%).
- Government budget and revenue in Iizuka: The municipal government of Iizuka took in 90.3 billion yen in fiscal 2022 (final accounts), 714,776 yen per resident, 6th highest of 262 cities.
What is the population of Iizuka?
Iizuka had 126,364 residents at the 1 October 2020 census (city proper). That is 65th lowest of 262 cities. The count includes foreign residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow big is Iizuka and how densely populated is it?
Iizuka covers 213.96 square kilometres (2024), of which 106.23 is habitable land. That is 591 people per square kilometre of total area at the 2020 census, 71st lowest of 262 for density.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyIs the population of Iizuka growing or shrinking?
The basic resident register recorded 124,118 residents in Iizuka 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 Iizuka?
12.8% of residents of Iizuka were under 15 (16,215 children) and 54.4% 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 Iizuka?
Iizuka had 55,762 households at the 2020 census, of which 55,562 were private households; that is about 2.27 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 Iizuka?
1,211 foreign nationals lived in Iizuka at the 2020 census, 1.0% 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 Iizuka each year?
Iizuka recorded 813 births and 1,874 deaths in 2023, a natural decrease of 1,061. That is 6.4 births and 14.8 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 Iizuka?
In 2024, 4,420 people moved into Iizuka from other municipalities and 4,302 moved out, a net gain of 118 (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 Iizuka each year?
Iizuka registered 494 marriages and 245 divorces by Japanese nationals in 2023, or 3.9 marriages per 1,000 residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyWho runs Iizuka?
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
- Inazawa 134,751
- Isahaya 133,852
- Ome 133,535
- Narita 132,906
- Zama 132,325
- Onomichi 131,170
- Abiko 130,510
- Kokubunji 129,242
- Iwakuni 129,125
- Fujinomiya 128,105
- Seto 127,792
- Osaki 127,330
- Koganei 126,074
- Uruma 125,303
- Kirishima 123,135
- Yatsushiro 123,067
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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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