Photo: ja:User:Sanjo / CC BY 4.0 · Wikimedia Commons
San'yo-Onoda City
Yamaguchi Prefecture · City
Official websiteYamaguchi Prefecture page
San'yo-Onoda City was formed by the merger of San'yo Town and Onoda City, and the Asa and Ariho rivers flow into the Suo-nada Sea here. The city is one of the birthplaces of Japan's cement industry and has an active chemical industry. It has the glass art center Kirara Glass Miraikan and an onsen (hot spring) by Lake Eshio.
Key facts
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.
Live information
Current weather (observed)
Places to visit
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).
Neighboring municipalities
Municipalities sharing a boundary (computed from the National Land Numerical Information administrative boundaries, January 2021).
Other municipalities in Yamaguchi Prefecture
The description was written for this site, picking out representative features.