According to Ministry of the Environment statistics, Iwate (Tohoku) has 81 onsen areas and 393 hot-spring sources. This page lists 31 onsen in Iwate with their water types. The most common water type among them is Sulfur Spring (13 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 |
|---|---|---|
| Sulfur Spring | 13 | 42% |
| Simple Thermal Spring | 8 | 26% |
| Chloride Spring | 3 | 10% |
| Other | 3 | 10% |
| Sulfate Spring | 2 | 6% |
| Unknown | 2 | 6% |
| Facility | Water Type |
|---|---|
| Hotto Yuda | Unknown |
| Dai Onsen Communal Bathhouse A locally managed communal bathhouse passed down in Dai Onsen, part of the Hanamaki Minami Onsen valley. | Simple Thermal Spring Simple spring |
| Name | What kind of onsen |
|---|---|
| Toshichi Onsen Details | At 1,400m on Mt. Hachimantai, the highest hot spring inn in the Tohoku region. The lone inn, Saiun-so, is known for open-air baths overlooking a sea of clouds and Mt. Iwate, and closes in winter under snow. |
| Onsen Town | Summary |
|---|---|
| Geto Onsen Travelogue | A single-inn cure retreat in a snowy gorge in the mountains of Kitakami. It closes in winter and operates only from early summer to late autumn. One of the archetypal rustic, unspoiled cure retreats in the Tohoku chapter of Tsuge Yoshiharu no Onsen. Details |