According to Ministry of the Environment statistics, Yamaguchi (Chugoku) has 40 onsen areas and 404 hot-spring sources. This page lists 51 onsen in Yamaguchi with their water types. The most common water type among them is Radium Spring (17 onsen).
Source: Ministry of the Environment, FY2024 Hot Spring Utilization Survey (as of March 31, 2025). Best-known onsen = most annual Wikipedia views.
| Water Type | Count | Share |
|---|---|---|
| Radium Spring | 17 | 33% |
| Simple Thermal Spring | 10 | 20% |
| Chloride Spring | 10 | 20% |
| Sulfur Spring | 5 | 10% |
| Other | 4 | 8% |
| Unknown | 3 | 6% |
| Bicarbonate Spring | 2 | 4% |
| Facility | Water Type |
|---|---|
| Yuda Onsen Communal Bathhouse A day-use bathing facility in Yuda Onsen, welling up in the center of Yamaguchi City. | Simple Thermal Spring Simple spring |