Saku Population 2026

Saku has a population of 99,131, making it the #276 biggest city in 🇯🇵 Japan, located in Nagano. Roughly 0.1% of Japan's population lives here. It is about 98× smaller than Tokyo, the country's biggest city.

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

Population (city proper)

99,131

Rank in Japan

#276

Coordinates

36.22°N, 138.48°E

~684 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

124 km

77 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
Azumino	94,222	#292
Ina	68,177	#411
Shiojiri	67,241	#417
Chikuma	59,381	#473

Cities near Saku

Komoro46,272 people · ~12 km away
Miyota15,562 people · ~14 km away
Tōmi30,122 people · ~19 km away
Karuizawa20,023 people · ~20 km away
Kamimaruko25,403 people · ~22 km away
Ueda157,480 people · ~27 km away

FAQ

What is the population of Saku?

Saku has a population of 99,131 (city proper, latest official figure via GeoNames), making it the #276 biggest city in Japan.

What region is Saku in?

Saku is located in Nagano, Japan.

Is Saku the capital of Japan?

No, the capital of Japan is Tokyo, about 124 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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