Niihama: population and official figures
In depth
- Economy, jobs and prices in Niihama: Taxable income for municipal resident tax in Niihama averaged 3.46 million yen per taxpayer in fiscal 2024, 82nd 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 Niihama: Niihama had 9 general hospitals (hospitals other than psychiatric ones) in 2023, or 7.76 per 100,000 residents, 45th highest of 262 cities, above the national figure (5.60).
- Education in Niihama: Niihama had 16 primary schools with 5,572 pupils and 373 full-time teachers in May 2024.
- Poverty and living standards in Niihama: 35.3% of private households in Niihama were one-person households at the 2020 census (18,080), 126th highest of 262 cities, below the national figure (38.0%).
- Government budget and revenue in Niihama: The municipal government of Niihama took in 53.4 billion yen in fiscal 2022 (final accounts), 460,677 yen per resident, 124th lowest of 262 cities.
What is the population of Niihama?
Niihama had 115,938 residents at the 1 October 2020 census (city proper). That is 46th lowest of 262 cities. The count includes foreign residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow big is Niihama and how densely populated is it?
Niihama covers 234.47 square kilometres (2024), of which 63.55 is habitable land. That is 494 people per square kilometre of total area at the 2020 census, 63rd lowest of 262 for density.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyIs the population of Niihama growing or shrinking?
The basic resident register recorded 112,724 residents in Niihama in 2024, 2.8% 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 Niihama?
12.3% of residents of Niihama were under 15 (14,205 children) and 53.9% 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 Niihama?
Niihama had 51,310 households at the 2020 census, of which 51,171 were private households; that is about 2.26 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 Niihama?
1,206 foreign nationals lived in Niihama 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 Niihama each year?
Niihama recorded 705 births and 1,770 deaths in 2023, a natural decrease of 1,065. That is 6.1 births and 15.3 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 Niihama?
In 2024, 2,801 people moved into Niihama from other municipalities and 3,255 moved out, a net loss of 454 (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 Niihama each year?
Niihama registered 426 marriages and 191 divorces by Japanese nationals in 2023, or 3.7 marriages per 1,000 residents.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyWho runs Niihama?
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
- Ebetsu 121,056
- Kashihara 120,922
- Kadoma 119,764
- Daito 119,367
- Nobeoka 118,394
- Handa 117,884
- Matsubara 117,641
- Aizuwakamatsu 117,376
- Karatsu 117,373
- Konosu 116,828
- Ikoma 116,675
- Sano 116,228
- Urasoe 115,690
- Kitami 115,480
- Beppu 115,321
- Higashikurume 115,271
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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