According to Ministry of the Environment statistics, Aomori (Tohoku) has 120 onsen areas and 1,089 hot-spring sources. This page lists 53 onsen in Aomori with their water types. The most common water type among them is Chloride Spring (22 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 | 22 | 42% |
| Sulfur Spring | 10 | 19% |
| Simple Thermal Spring | 8 | 15% |
| Other | 5 | 9% |
| Sulfate Spring | 3 | 6% |
| Unknown | 3 | 6% |
| Carbon Dioxide Spring | 1 | 2% |
| Iron Spring | 1 | 2% |
| Facility | Water Type |
|---|---|
| Sukayu Onsen Hiba Senninburo Famous for its huge mixed-bathing hall built entirely of Hiba cypress; a renowned hot spring of the Hakkoda mountains open for day bathing, and Japan's first-designated National Health Resort. | Sulfur Spring Acidic, sulfur-bearing aluminum/iron(II) – sulfate/chloride spring |
| Sukayu | Sulfur Spring Acidic sulfur spring |
| Kintaro Onsen (Aomori) | Sulfur Spring Sulfur-bearing sodium/calcium chloride spring (hydrogen-sulfide type) |
| Name | What kind of onsen |
|---|---|
| Aoni Onsen Details | A single lodge deep in the Aoni Valley known as the 'Inn of Lamps' — the buildings use no electricity, lit only by oil lamps at night, and in winter guests can reach it only by the inn's own shuttle bus due to road closures. |
| Onsen Town | Summary |
|---|---|
| Sukayu Onsen National Health Resort | One of the first three National Health Resort Onsen designated in Japan, in 1954, together with Nikko-Yumoto Onsen and Shima Onsen. A single lodge deep in the Hakkoda mountains, known for its pillar-less, roughly 260 m² all-hiba-wood mixed bathing hall, the 'Hiba Sennin-buro.' Details |
| Yunokawa Onsen Travelogue | A hot-spring cure retreat with alkaline simple-type water in the mountains of the Shimokita Peninsula, along the Kawauchi River. It appears in the Aomori/Iwate/Miyagi/Yamagata chapter of Tsuge Yoshiharu no Onsen (Tsuge Yoshiharu's Hot Springs, Chikuma Bunko), and marks the starting point of Tsuge's journey through the remote, rustic hot springs of Tohoku. Details |