Oshima Population 2026

Oshima has a population of 18,630, making it the #1097 biggest city in 🇯🇵 Japan, located in Ishikawa. It is about 522× smaller than Tokyo, the country's biggest city.

Location of Oshima (capital Tokyo shown for reference). Boundaries: Natural Earth.

Population (city proper)

18,630

Rank in Japan

#1097

Coordinates

36.99°N, 136.77°E

~11 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

299 km

186 miles, straight line

Other big cities in Ishikawa

City	Population	Rank in Japan
Kanazawa	466,029	#37
Matsutō	110,408	#248
Komatsu	108,509	#254
Kaga	67,793	#413
Nonoichi	57,238	#489
Nanao	50,300	#547
Nomimachi	48,523	#571
Tsubata	37,694	#698

Cities near Oshima

Hakui24,529 people · ~12 km away
Hitoto16,540 people · ~12 km away
Nanao50,300 people · ~19 km away
Himimachi54,510 people · ~24 km away
Himi43,995 people · ~24 km away
Kahoku34,889 people · ~26 km away

FAQ

What is the population of Oshima?

Oshima has a population of 18,630 (city proper, latest official figure via GeoNames), making it the #1097 biggest city in Japan.

What region is Oshima in?

Oshima is located in Ishikawa, Japan.

Is Oshima the capital of Japan?

No, the capital of Japan is Tokyo, about 299 km away.

Sources & notes

Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.

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