Sōsa Population 2026

Sōsa has a population of 35,674, making it the #721 biggest city in 🇯🇵 Japan, located in Chiba. It is about 273× smaller than Tokyo, the country's biggest city.

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

Population (city proper)

35,674

Rank in Japan

#721

Coordinates

35.72°N, 140.55°E

~36 m elevation · Asia/Tokyo

Distance to capital (Tokyo)

78 km

48 miles, straight line

Other big cities in Chiba

City	Population	Rank in Japan
Chiba	979,768	#13
Matsudo	498,575	#31
Kashiwa	433,436	#41
Ichihara	283,531	#83
Nagareyama	200,136	#119
Yachiyo	199,498	#120
Narashino	176,197	#138
Sakura	173,740	#141

Cities near Sōsa

Yōkaichiba32,651 people · ~2 km away
Asahi64,690 people · ~9 km away
Yokoshiba22,075 people · ~10 km away
Sanmu48,444 people · ~16 km away
Omigawa25,763 people · ~16 km away
Ryōgoku49,735 people · ~17 km away

FAQ

What is the population of Sōsa?

Sōsa has a population of 35,674 (city proper, latest official figure via GeoNames), making it the #721 biggest city in Japan.

What region is Sōsa in?

Sōsa is located in Chiba, Japan.

Is Sōsa the capital of Japan?

No, the capital of Japan is Tokyo, about 78 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