Hikone Castle
One of only five 'national treasure' original castle keeps in Japan; the moat-side cherry blossoms and lakeside garden are spectacular.
Open in Maps ↗Prefecture profile · 都道府県
Shiga 滋賀県
Lake Biwa, Japan's largest freshwater lake, occupies a sixth of the prefecture. Around it: the original Ōmi merchant culture that taught Japan how to do business, Hikone Castle, Hieizan Enryaku-ji's mountain monasticism, and a quiet but heavyweight precision manufacturing economy.
Capital
Otsu
Population
1.4 million
Area
4,017 km²
Region
Kansai
History
Hieizan Enryaku-ji, founded in 788 by Saichō, became the head temple of the Tendai school and the most powerful monastery in medieval Japan — until Oda Nobunaga burned it to the ground in 1571 to break its political and military power.
Ōmi merchants ('Ōmi-shōnin') were Edo-Japan's most accomplished traveling traders; their 'sanpō-yoshi' code (good for seller, buyer, and society) is the founding ethics still cited by Itochu, Marubeni, Sumitomo and Wacoal — all descended from Ōmi merchant houses.
Modern Shiga industrialized as a precision-manufacturing satellite of Kyoto: Murakami Kaimei, Yanmar Diesel (Nagahama), Toyobo (Hikone). Lake Biwa's water supplies almost 14 million people downstream in the Kansai region — a fact that has driven five decades of pollution-control investment.
Economy & business
Shiga's prefectural GDP is around ¥6.9 trillion (US$47 billion). The economy is high-productivity manufacturing — pharmaceuticals (Takeda Hikari, MSD), precision machinery (Yanmar diesel, Daihatsu Ryūō plant), textiles (Toyobo), and instruments — supported by a growing inbound-tourism circuit around Lake Biwa and a small but distinctive freshwater-fish food culture.
Key industries
Precision machinery
Yanmar (diesel engines, HQ Nagahama), Daihatsu Ryūō (compact-car plant), Sysmex medical instruments.
Pharmaceuticals
Takeda Pharmaceutical Hikari plant, MSD Banyu, Mitsubishi Tanabe Onohachi — Shiga has one of Japan's densest pharma-manufacturing clusters.
Textiles & functional fibers
Toyobo Hikone is the company's main plant; surrounding mills supply Kansai's high-end synthetic-textile market.
Trading & finance heritage
Ōmi merchant houses (Itochu, Marubeni, Sumitomo, Takashimaya, Wacoal, Mitsui Kōzan, Kongo Gumi) all originated here — Shiga supplies Japan's commercial DNA.
Tourism
Hikone Castle, Hieizan Enryaku-ji, Lake Biwa cycling route (BIWAICHI), Shigaraki ceramics village.
Notable companies
Yanmar (Nagahama HQ)Daihatsu RyūōToyobo HikoneTakeda Hikari PlantShiga BankWacoal (founding lineage)
Trade partners
ChinaUnited StatesThailandVietnamGermany
Tourism highlights
Hieizan Enryaku-ji
Founded 788; mountain monastery accessed by cable car or hiking trail; the marathon monks' 1,000-day pilgrimage circuit is among Buddhism's most extreme practices.
Open in Maps ↗Lake Biwa & BIWAICHI
Japan's largest freshwater lake (670 km²); the BIWAICHI cycling loop circles the lake in 200 km.
Open in Maps ↗Shigaraki ceramic village
Famous for its tanuki racoon-dog statues and the MIHO Museum (designed by I.M. Pei in 1997).
Open in Maps ↗Nagahama old town
Black-walled merchant town that preserved its glassblowing studios; a quieter alternative to Hikone.
Open in Maps ↗Chikubu Island
Tiny sacred island in the northern half of Lake Biwa; access only by ferry.
Open in Maps ↗Did you know
Lake Biwa, Japan's largest freshwater lake, supplies drinking water to about 14 million people in the Kansai region (Osaka, Kyoto, Kobe, Nara) — its protection is taken with near-religious seriousness.
Ōmi merchants from Shiga seeded most of Japan's biggest trading houses — Itochu, Marubeni, Sumitomo, Mitsui, Takashimaya, Wacoal — and their 'sanpō-yoshi' (good for seller, buyer, society) is still taught as the founding ethics of Japanese business.
Hikone is one of only five Japanese castles whose original wooden keep has stood continuously since the early Edo period; the others are Matsumoto, Inuyama, Himeji, and Matsue.
About Shiga — Frequently asked
What is the capital of Shiga?
The capital of Shiga is Otsu.
What region of Japan is Shiga in?
Shiga is part of the Kansai region of Japan.
What are Shiga's main industries?
Shiga's key industries include Precision machinery, Pharmaceuticals, Textiles & functional fibers, Trading & finance heritage.
What are the top tourist attractions in Shiga?
Top attractions in Shiga include Hikone Castle, Hieizan Enryaku-ji, Lake Biwa & BIWAICHI, Shigaraki ceramic village.
What major companies are based in Shiga?
Notable companies headquartered in Shiga include Yanmar (Nagahama HQ), Daihatsu Ryūō, Toyobo Hikone, Takeda Hikari Plant, Shiga Bank.
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