is a

city A city is a human settlement of a substantial size. The term "city" has different meanings around the world and in some places the settlement can be very small. Even where the term is limited to larger settlements, there is no universally agree ...

located in

Nagano Prefecture is a Landlocked country, landlocked Prefectures of Japan, prefecture of Japan located in the Chūbu region of Honshu. Nagano Prefecture has a population of 2,007,682 () and has a geographic area of . Nagano Prefecture borders Niigata Prefecture ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. , the city had an estimated

population Population is a set of humans or other organisms in a given region or area. Governments conduct a census to quantify the resident population size within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and pl ...

of 48,616 in 19,257 households, and a

population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...

of 570 persons per km². The total area of the city is .

Geography

Okaya is located in central Nagano Prefecture at the western shores of

Lake Suwa is a lake in the Kiso Mountains, in the central region of Nagano Prefecture, Japan. Geography The lake is the source of the Tenryū River. It ranks 24th in lake water surface area in Japan. The cities of Suwa and Okaya and the town of Shimos ...

and the

headwaters The headwater of a river or stream is the geographical point of its beginning, specifically where surface runoff water begins to accumulate into a flowing channel of water. A river or stream into which one or many tributary rivers or streams flo ...

of the

Tenryū River The is a river in central Honshū, Japan. With a length of , it is Japan's ninth longest river. Its source is Lake Suwa in the Kiso Mountains near Okaya in Nagano Prefecture. It then flows through Aichi Prefecture and western Shizuoka Prefec ...

Surrounding municipalities

*Nagano Prefecture ** Matsumoto **

Shimosuwa is a town located in Nagano Prefecture, Japan. , the town had an estimated population of 20,055 in 8864 households, and a population density of 300 persons per km2. The total area of the town is . Geography Shimosuwa is located in central Nagan ...

** Shiojiri ** Suwa ** Tatsuno

Climate

The city has a climate characterized by characterized by hot and humid summers, and relatively mild winters (

Köppen climate classification The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (te ...

''Cfa''). The average annual temperature in Okaya is 10.6 °C. The average annual rainfall is 1281 mm with September as the wettest month. The temperatures are highest on average in August, at around 23.6 °C, and lowest in January, at around -1.9 °C.

Demographics

Per Japanese census data, the population of Okaya has declined over the past 50 years.

History

The area of present-day Okaya was part of ancient

Shinano Province or is an old province of Japan that is now Nagano Prefecture. Shinano bordered Echigo, Etchū, Hida, Kai, Kōzuke, Mikawa, Mino, Musashi, Suruga, and Tōtōmi Provinces. The ancient capital was located near modern-day Matsumoto, whi ...

. The village of Hirano was created with the establishment of the municipalities system on April 1, 1889. Hirano was raised to directly city status on April 1, 1936 and was renamed Okaya, and is one of the eleven villages in Japan which have skipped the intermediate

town A town is a type of a human settlement, generally larger than a village but smaller than a city. The criteria for distinguishing a town vary globally, often depending on factors such as population size, economic character, administrative stat ...

stage to directly become a city. Okaya annexed neighbouring Shijiri town and Chikumaji village on January 1, 1951, followed by Minato village on January 1, 1955, Kawagishi village on February 1, 1955 and Osachi village on March 25, 1957.

Government

Okaya has a mayor-council form of government with a directly elected mayor and a

unicameral Unicameralism (from ''uni''- "one" + Latin ''camera'' "chamber") is a type of legislature consisting of one house or assembly that legislates and votes as one. Unicameralism has become an increasingly common type of legislature, making up nearly ...

city legislature of 18 members. The city is grouped into an electoral district with

, which contributes four members to the Nagano Prefectural Assembly. In terms of national politics, Okaya is grouped with Chino, Shiojiri, Suwa,

Kiso District, Nagano is a district located in Nagano Prefecture, Japan. As of November 1, 2005, the district has an estimated population of 34,759 with a density of 22.48 persons per km2. The total area is 1,546.26 km2. Municipalities The district consists of t ...

Suwa District, Nagano is a district located in southern Nagano Prefecture, Japan. As of 2003, the district has an estimated population of 46,162 with a density of 181.18 persons per km2. The total area is 254.79 km2. Municipalities The district consists of two tow ...

to form Nagano 4th District in the

lower house A lower house is the lower chamber of a bicameral legislature, where the other chamber is the upper house. Although styled as "below" the upper house, in many legislatures worldwide, the lower house has come to wield more power or otherwise e ...

of the

National Diet , transcription_name = ''Kokkai'' , legislature = 215th Session of the National Diet , coa_pic = Flag of Japan.svg , house_type = Bicameral , houses = , foundation=29 November 1890(), leader1_type ...

Economy

The region's local industry is predominantly made up of medium and small-size businesses, but some larger corporations, including

Seiko Epson Seiko Epson Corporation, commonly known as Epson, is a Japanese multinational electronics company and one of the world's largest manufacturers of printers and information- and imaging-related equipment. Headquartered in Suwa, Nagano, Japan, t ...

Olympus Olympus or Olympos () may refer to: Mountains In antiquity Greece * Mount Olympus in Thessaly, northern Greece, the home of the twelve gods of Olympus in Greek mythology * Mount Olympus (Lesvos), located in Lesbos * Mount Olympus (Euboea) ...

and

Kyocera is a Japanese Multinational corporation, multinational ceramics and electronics manufacturer headquartered in Kyoto, Japan. It was founded as in 1959 by Kazuo Inamori and renamed in 1982. It manufactures industrial ceramics, solar power genera ...

have factories in Okaya. From the

Meiji period The was an era of Japanese history that extended from October 23, 1868, to July 30, 1912. The Meiji era was the first half of the Empire of Japan, when the Japanese people moved from being an isolated feudal society at risk of colonizatio ...

through the early

Shōwa period Shōwa most commonly refers to: * Hirohito (1901–1989), the 124th Emperor of Japan, known posthumously as Emperor Shōwa ** Shōwa era (昭和), the era of Hirohito from 1926 to 1989 * Showa Corporation, a Japanese suspension and shock manufactu ...

(1868-1930), the Okaya area was one of Japan's largest producers of export-quality

silk Silk is a natural fiber, natural protein fiber, some forms of which can be weaving, woven into textiles. The protein fiber of silk is composed mainly of fibroin and is most commonly produced by certain insect larvae to form cocoon (silk), c ...

, due to the introduction of a new silk-reeling machine from overseas. After the

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

, Okaya established itself as a manufacturing city of precision machinery, focusing on producing products such as watches and cameras.

Education

Okaya has seven public elementary schools and four public middle schools operated by the city government. The city has three public high schools operated by the Nagano Prefectural Board of Education.

Transportation

Railway

East Japan Railway Company The is a major passenger railway company in Japan and the largest of the seven Japan Railways Group companies. The company name is officially abbreviated as JR-EAST or JR East in English, and as in Japanese. The company's headquarters are in ...

Chūō Main Line The , commonly called the Chūō Line, is one of the major trunk railway lines in Japan. It connects Tokyo and Nagoya, although it is the slowest direct railway connection between the two cities; the coastal Tōkaidō Main Line is slightly faste ...

** -

Highway

* Nagano Expressway * *

International relations

* - The city is twinned with Mount Pleasant,

Michigan Michigan ( ) is a peninsular U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest, Upper Midwestern United States. It shares water and land boundaries with Minnesota to the northwest, Wisconsin to the west, ...

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. In 2005 it donated forty trees to Mount Pleasant, honoring forty years of association between the two cities.

Local attractions

*Okaya is known for its Onbashira and Taiko festivals, and ''

unagi is the Japanese word for freshwater eel, particularly the Japanese eel, . Unagi is a common ingredient in Japanese cooking, often as '' kabayaki''. It is not to be confused with saltwater eel, which is known as '' anago'' in Japanese. In J ...

'' (eel) dishes. *Okaya Silk Museum, which opened its doors in 1964 to remember the importance of the Japanese silk industry to the area. Besides pictures of the old manufacturing techniques and people working in the silk reeling manufactures, there is old machinery and a full-functioning manufacture that is run by the Miyasaka Silk Reeling Co. in the museum. * Nashikubo ruins, a Jomon period settlement trace and National Historic Monument.