According to Ministry of the Environment statistics, Hokkaido (Hokkaido) has 226 onsen areas and 2,249 hot-spring sources. This page lists 171 onsen in Hokkaido with their water types. The most common water type among them is Chloride Spring (70 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 |
|---|---|---|
| Chloride Spring | 70 | 41% |
| Sulfur Spring | 32 | 19% |
| Unknown | 18 | 11% |
| Simple Thermal Spring | 17 | 10% |
| Bicarbonate Spring | 16 | 9% |
| Other | 8 | 5% |
| Sulfate Spring | 7 | 4% |
| Carbon Dioxide Spring | 3 | 2% |
| Facility | Water Type |
|---|---|
| Nagareyama Onsen | Sulfate Spring Sodium/calcium – sulfate spring |
| Eniwa no Yu | Unknown |
| Eniwa Onsen La Foret | Unknown |
| Wakkanai Natural Hot Spring Minato no Yu | Unknown |
| Kamuidake Onsen | Unknown |
| Muroran Onsen Yurara | Unknown |
| Nagomi no Yu | Chloride Spring Sodium – strong chloride spring (hypertonic, weakly alkaline, high-temperature) |
| Bifuka Onsen | Chloride Spring Chloride spring / bicarbonate spring |
| New Chitose Airport Onsen | Chloride Spring Sodium – chloride spring |
| Rakuraku Onsen | Unknown |
| Yunomi no Yu | Chloride Spring Sodium strong chloride spring (chloride spring) |
| Bogaku no Yu | Unknown |
| Yumemoto Sagiri-yu A day-use bathing facility in the center of Noboribetsu Onsen town, offering the sulfur spring that is one of Noboribetsu's most representative water types among its many mineral springs. | Sulfur Spring Acidic sulfur spring |
| Name | What kind of onsen |
|---|---|
| Nakadake Onsen Details | A wild, unmanned hot spring along the pond-hopping trail of the Daisetsuzan Kogen area. There is no lodging; hikers reach this natural open-air spring only on foot. |
| Kamuiwakka Falls Onsen Details | A Shiretoko mountain stream that is itself a hot bath, its milky sulfurous water pouring into the waterfall pool. Since 2023, access has been limited to guided tours only. |
| Onsen Town | Summary |
|---|---|
| Noboribetsu Onsen Legends & Origins | The place name 'Noboribetsu' derives from the Ainu word 'Nupur-pet.' The linguist Chiri Mashiho translated this as 'a river of deep color,' said to describe the murky water of the Oyunuma River flowing out of Jigokudani (Hell Valley). Details |