Ōmachi Population 2026

Ōmachi has a population of 27,559, making it the #886 biggest city in 🇯🇵 Japan, located in Nagano. It is about 353× smaller than Tokyo, the country's biggest city.

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

Population (city proper)

27,559

Rank in Japan

#886

Coordinates

36.50°N, 137.87°E

~714 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

187 km

116 miles, straight line

Other big cities in Nagano

City	Population	Rank in Japan
Nagano	372,760	#59
Matsumoto	241,145	#104
Ueda	157,480	#162
Iida	101,536	#268
Saku	99,131	#276
Azumino	94,222	#292
Ina	68,177	#411
Shiojiri	67,241	#417

Cities near Ōmachi

Hotaka33,195 people · ~18 km away
Chikuma59,381 people · ~20 km away
Toyoshina27,834 people · ~22 km away
Azumino94,222 people · ~24 km away
Sakaki15,025 people · ~29 km away
Matsumoto241,145 people · ~31 km away

FAQ

What is the population of Ōmachi?

Ōmachi has a population of 27,559 (city proper, latest official figure via GeoNames), making it the #886 biggest city in Japan.

What region is Ōmachi in?

Ōmachi is located in Nagano, Japan.

Is Ōmachi the capital of Japan?

No, the capital of Japan is Tokyo, about 187 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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