Ōguchi Population 2026

Ōguchi has a population of 24,305, making it the #958 biggest city in 🇯🇵 Japan, located in Aichi. It is about 400× smaller than Tokyo, the country's biggest city.

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

Population (city proper)

24,305

Rank in Japan

#958

Coordinates

35.34°N, 136.91°E

~41 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

255 km

158 miles, straight line

Other big cities in Aichi

City	Population	Rank in Japan
Nagoya	2,332,176	#4
Toyota	426,162	#43
Okazaki	384,654	#54
Ichinomiya	380,073	#55
Toyohashi	377,453	#56
Kasugai	308,681	#74
Anjō	188,693	#133
Toyokawa	184,661	#135

Cities near Ōguchi

Fusō34,133 people · ~2 km away
Kōnan98,255 people · ~4 km away
Inuyama73,995 people · ~5 km away
Komaki148,872 people · ~6 km away
Iwakura48,007 people · ~8 km away
Kakamigahara144,521 people · ~9 km away

FAQ

What is the population of Ōguchi?

Ōguchi has a population of 24,305 (city proper, latest official figure via GeoNames), making it the #958 biggest city in Japan.

What region is Ōguchi in?

Ōguchi is located in Aichi, Japan.

Is Ōguchi the capital of Japan?

No, the capital of Japan is Tokyo, about 255 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.

← All biggest cities in Japan · Japan population by year