According to Ministry of the Environment statistics, Fukuoka (Kyushu & Okinawa) has 46 onsen areas and 422 hot-spring sources. This page lists 20 onsen in Fukuoka with their water types. The most common water type among them is Radium Spring (6 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 | 6 | 30% |
| Simple Thermal Spring | 5 | 25% |
| Chloride Spring | 3 | 15% |
| Carbon Dioxide Spring | 2 | 10% |
| Unknown | 2 | 10% |
| Bicarbonate Spring | 1 | 5% |
| Sulfur Spring | 1 | 5% |
| Facility | Water Type |
|---|---|
| Shiraito no Yu | Unknown |
| Harazuru Onsen Communal Bathhouse A day-use bathing facility in Harazuru Onsen, spread along the Chikugo River. | Chloride Spring Sodium – chloride spring |