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Oshu: population and official figures

Population (2020 census)
112,937
2020

In depth

What is the population of Oshu?

Oshu had 112,937 residents at the 1 October 2020 census (city proper). That is 32nd lowest of 262 cities. The count includes foreign residents.

Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copy

How big is Oshu and how densely populated is it?

Oshu covers 993.30 square kilometres (2024), of which 450.59 is habitable land. That is 114 people per square kilometre of total area at the 2020 census, 4th lowest of 262 for density.

Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copy

Is the population of Oshu growing or shrinking?

The basic resident register recorded 107,798 residents in Oshu in 2024, 4.6% 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 copy

What share of the population of Oshu is over 65?

35.4% of the residents of Oshu were aged 65 or over at the 2020 census (39,997 people), 11th oldest of 262 cities, above the national figure (28.0%).

Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copy

How many children live in Oshu?

11.1% of residents of Oshu were under 15 (12,501 children) and 52.9% 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 copy

How many households are there in Oshu?

Oshu had 42,371 households at the 2020 census, of which 42,241 were private households; that is about 2.67 residents per household (residents divided by all households).

Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copy

How many foreigners live in Oshu?

589 foreign nationals lived in Oshu at the 2020 census, 0.5% of residents, below the national figure (1.9%).

Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copy

How many babies are born in Oshu each year?

Oshu recorded 458 births and 2,011 deaths in 2023, a natural decrease of 1,553. That is 4.1 births and 17.8 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 copy

Are more people moving into or out of Oshu?

In 2024, 2,116 people moved into Oshu from other municipalities and 2,691 moved out, a net loss of 575 (moves within the city and from abroad are not counted).

Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copy

How many marriages are there in Oshu each year?

Oshu registered 291 marriages and 125 divorces by Japanese nationals in 2023, or 2.6 marriages per 1,000 residents.

Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copy

Who runs Oshu?

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

Up a level: all cities in Japan · Japan · government and power

Sources

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