Ōiso Population 2026

Ōiso has a population of 32,595, making it the #781 biggest city in 🇯🇵 Japan, located in Kanagawa. It is about 299× smaller than Tokyo, the country's biggest city.

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

Population (city proper)

32,595

Rank in Japan

#781

Coordinates

35.32°N, 139.32°E

~71 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

54 km

34 miles, straight line

Other big cities in Kanagawa

City	Population	Rank in Japan
Yokohama	3,777,491	#2
Kawasaki	1,538,262	#7
Aihara	725,493	#20
Sagamihara	720,780	#22
Fujisawa	439,728	#40
Yokosuka	409,478	#47
Hiratsuka	258,422	#95
Chigasaki	242,798	#100

Cities near Ōiso

Hiratsuka258,422 people · ~2 km away
Ninomiya27,564 people · ~6 km away
Chigasaki242,798 people · ~8 km away
Isehara103,401 people · ~9 km away
Nihammatsu48,348 people · ~9 km away
Ebina136,516 people · ~10 km away

FAQ

What is the population of Ōiso?

Ōiso has a population of 32,595 (city proper, latest official figure via GeoNames), making it the #781 biggest city in Japan.

What region is Ōiso in?

Ōiso is located in Kanagawa, Japan.

Is Ōiso the capital of Japan?

No, the capital of Japan is Tokyo, about 54 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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