Saiki Population 2026

Saiki has a population of 66,851, making it the #420 biggest city in 🇯🇵 Japan, located in Oita. Roughly 0.1% of Japan's population lives here. It is about 146× smaller than Tokyo, the country's biggest city.

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

Population (city proper)

66,851

Rank in Japan

#420

Coordinates

32.95°N, 131.90°E

~3 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

777 km

483 miles, straight line

Other big cities in Oita

City	Population	Rank in Japan
Ōita	477,715	#35
Beppu	122,643	#220
Nakatsu	84,701	#326
Tsurusaki	76,968	#359
Hita	64,874	#430
Yokkaichi	52,771	#524
Usuki	36,158	#713
Mie	33,695	#758

Cities near Saiki

Tsukumiura21,658 people · ~14 km away
Usuki36,158 people · ~21 km away
Mie33,695 people · ~30 km away
Tsurusaki76,968 people · ~38 km away
Ōita477,715 people · ~42 km away
Nobeoka119,521 people · ~46 km away

FAQ

What is the population of Saiki?

Saiki has a population of 66,851 (city proper, latest official figure via GeoNames), making it the #420 biggest city in Japan.

What region is Saiki in?

Saiki is located in Oita, Japan.

Is Saiki the capital of Japan?

No, the capital of Japan is Tokyo, about 777 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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