Tadaoka Town

Osaka Prefecture · Town

Tadaoka Town faces Osaka Bay and is the only town in Senboku District and the smallest town in Japan by area. The whole town is urban, and the coastal area and the banks of the Otsu River are used for industry. The Masaki Art Museum holds the National Treasure "Santai Hakushi Shikan" poem scroll and is known for its collection of Zen monks' calligraphy and tea utensils.

Key facts

Population: 15,610 995th in Japan2025 Census
5-year change: −5.8% 1,004th in Japanfrom 16,567 in 2020
Area: 3.97 km² 1,739th in Japan
Population density: 3,932 people/km² 119th 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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MuseumMasaki Art Museummuseum in Japan
All Museums and art museums Wikipedia Photo: Sesso (?=Sesshu?) / Public domain

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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