Isahaya Population 2026

Isahaya has a population of 135,546, making it the #193 biggest city in 🇯🇵 Japan, located in Nagasaki. Roughly 0.1% of Japan's population lives here. It is about 72× smaller than Tokyo, the country's biggest city.

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

Population (city proper)

135,546

Rank in Japan

#193

Coordinates

32.84°N, 130.04°E

~104 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

941 km

584 miles, straight line

Other big cities in Nagasaki

City	Population	Rank in Japan
Nagasaki	409,118	#48
Sasebo	243,223	#99
Ōmura	95,397	#286
Obita	45,293	#604
Shimabara	43,338	#627
Minamishimabara	42,330	#644
Unzen	41,096	#659
Gotō	34,391	#747

Cities near Isahaya

Ōmura95,397 people · ~12 km away
Obita45,293 people · ~15 km away
Nagasaki409,118 people · ~18 km away
Togitsu30,084 people · ~18 km away
Unzen41,096 people · ~21 km away
Minamishimabara42,330 people · ~28 km away

FAQ

What is the population of Isahaya?

Isahaya has a population of 135,546 (city proper, latest official figure via GeoNames), making it the #193 biggest city in Japan.

What region is Isahaya in?

Isahaya is located in Nagasaki, Japan.

Is Isahaya the capital of Japan?

No, the capital of Japan is Tokyo, about 941 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