Iwashiro Province Ichinomiya
Isasumi Jinja
伊佐須美神社
Isasumi Jinja is the ichinomiya — the leading shrine — of the former Iwashiro Province, in present-day Fukushima. It has a car park (about 120 spaces); the sources we checked do not give a fee. Opening hours end at 16:00 (goshuin desk). Without a car, the shrine's own website gives 2 routes from a station (by bus, on foot), one of them a walk of about 25 min; the station names are listed below. Its principal annual festival (reisai) falls on September 14–16 every year. We found 3 entries for the shrine in Japan’s national database of designated cultural properties. The nearest other ichinomiya is Iwatsutsukowake Jinja, 64 km to the south-east in a straight line.
Getting there
福島県大沼郡会津美里町宮林甲4377
The address is given in Japanese on purpose. Show it to a taxi driver, or copy it into a car navigation system — an English transliteration will not be recognised.
For a car navigation system
- Phone
- Japanese car navigation searches by phone number. This is the fastest way to enter a destination.
- Coordinates
- Derived from the address down to the street number, via Japan's national mapping agency. Not a survey of the hall itself
- Address
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By train and bus
- From 会津若松駅JR磐越西線
- By bus.
- From 会津高田駅JR只見線
- On foot, about 25 min.
The source, word for word (bus stop names included):
JR磐越西線 会津若松駅下車 若松駅前バスターミナル ＞ 永井野行バス利用 横町バス停まで（約40分）＞ 徒歩3分 JR只見線 会津高田駅下車から徒歩約25分
Taken from the shrine's own website (伊佐須美神社 公式サイト アクセス, checked 2026-10-08). Station and stop names stay in Japanese so you can match them to signs. Fares and timetables are not given — they change.
Parking
It has a car park (about 120 spaces); the sources we checked do not give a fee.
自家用車120台・大型バス5台。料金の記載なし
The note above is in Japanese; it usually records dates when the car park is closed, and the fee.
Shrine office hours
Opening hours end at 16:00 (goshuin desk).
The full note from the source, in Japanese:
御朱印受付 9:00-16:00
Closing times of every ichinomiya, earliest first →
Visiting the 4 ichinomiya in Fukushima in one day? Work out an order that reaches each office before it closes →
History in brief
- Founding
- According to the shrine's tradition, in the tenth year of Emperor Sujin, Ōbiko no Mikoto and his son Takenunakawawake no Mikoto met in Aizu and held rites on Mt. Mikagura.
- Moved
- The shrine says the deities moved via Mt. Hakase and Mt. Myōjin, came to Takada Minamihara in 552, and settled at the present site in 560.
- Name
- In Kansei 11, Emperor Kōkaku granted the title Daijingū, and the shrine was called Isasumi Daijingū.
- Buildings
- In October of Heisei 20, fires of suspicious origin destroyed the main hall, worship hall and other buildings.
Summarised from the shrine's own website (由緒・概要｜伊佐須美神社, checked 2026-10-08). Traditions are given as the shrine tells them, not as established history.
Enshrined deities
- Izanagi-no-Kami 伊弉諾尊 7 ichinomiya enshrine this deity →
- Izanami-no-Mikoto 伊弉冉尊 4 ichinomiya enshrine this deity →
- Ohiko-no-Mikoto 大毘古命 2 ichinomiya enshrine this deity →
- Takenunakawawake-no-Mikoto 建沼河別命
The shrine's website describes Izanagi and Izanami as the gods who first opened the way of marriage and set in order nature and society, and Ōbiko and Takenunakawawake as two of the four generals who pacified the provinces along the Hokuriku and Tōkai roads.
Our English summary of the Japanese description. Spelling as given by the shrine's own website.
Goshuin (shrine seal)
- Available
- Yes
- Hours
- 9:00-16:00
- Offering
- ¥1000
Nationally designated cultural properties
- 朱漆金銅装神輿
- Important Cultural Property
- 会津の御田植祭
- Important Intangible Folk Cultural Property (manners and customs)
- 会津の御田植祭
- Intangible Folk Cultural Property selected for recording (manners and customs)
Source: the national register. All of them together →
Festivals
- Principal annual festival
-
9月14日～16日 例大祭
source
Other festivals and rituals
- 御田植祭
- 7月11日・12日・13日
- あやめ祭り
- 6月15日～7月5日
- 砂山祭
- 旧5月5日
old-calendar date - 明神ヶ岳奥宮祭
- 6月1日
- 注連下神事・献燈祭
- 9月1日
Nearest ichinomiya
The closest is Iwatsutsukowake Jinja, about 64 km to the south-east in a straight line, the ichinomiya of Mutsu Province. After that come Tsutsukowake Jinja (67 km south-east) and Tsutsukowake Jinja (71 km south-east).
Straight-line distances between the shrines, not road distances. Across mountains or water, the drive is much longer.
Why this shrine is called an ichinomiya
Listed by the pilgrimage association
It appears on the map published by the Ichinomiya Pilgrimage Association. We have not yet checked other primary sources.
- 全国一の宮巡拝会『全国一の宮神社所在地』（平成30年5月・改訂版 第4版） (checked 2026-09-09)
More on how the shrines of this province relate to one another is on the Iwashiro Province page.
Historical rank
- Province
- Iwashiro Province (Shin-Ichinomiya)
- Prefecture
- Fukushima
- Engishiki (927)
- Myōjin Taisha
- Former state rank (1871–1946)
- Kokuhei Chūsha
Sources
- https://isasumi.or.jp/access.html (checked 2026-09-09)
- https://isasumi.or.jp/goshuin.html (checked 2026-09-09)
- https://isasumi.or.jp/outline.html (checked 2026-09-10)
How we handle spellings, festival selection, former ranks and map accuracy is set out once on the About page.