Oiso Town

Kanagawa Prefecture · Town

Official website Kanagawa Prefecture page

Oiso Town is a town in the Shonan area where important figures in politics and business, such as Ito Hirobumi and Yoshida Shigeru, built villas in the Meiji era. Terugasaki Beach, said to be the first swimming beach in Japan, and the pine-lined avenue of the old Tokaido highway remain here.

Key facts

Population: 30,560 717th in Japan2025 Census
5-year change: −3.4% 1,251st in Japanfrom 31,634 in 2020
Area: 17.18 km² 1,602nd in Japan
Population density: 1,779 people/km² 240th in Japan

Source: Statistics Bureau of Japan, 2025 Population Census (population, area and density); area from the Geospatial Information Authority of Japan (GSI), Area Statistics of Prefectures and Municipalities (2025). National ranks are among the 1,741 municipalities, ordered by this site from these values.

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Chosen automatically, most popular first, from landmarks and cultural properties registered in Wikidata (we have not checked whether each is open). Names and descriptions: Wikidata (CC0); photos: Wikimedia Commons (photographer and license under each photo).

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Municipalities sharing a boundary (computed from the National Land Numerical Information administrative boundaries, January 2021).

The description was written for this site, picking out representative features.

Figures come from official Japanese statistics (such as the 2025 Census by the Statistics Bureau of Japan), with the source and year shown next to each one. Photos are freely licensed images from Wikimedia Commons; the photographer and license are shown under each photo.

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