Fudai (普代村, Fudai-mura) is a village located in Iwate Prefecture, Japan. As of 1 June 2019, the village had an estimated population of 2,607, and a population density of 37.4 persons per km in 1,126 households. The total area of the village is 69.66 square kilometres (26.90 sq mi).

Fudai is a coastal mountainous community situated on the Sanriku Coast ria along the Pacific Ocean in northern Iwate. The southern part of the village, an area called Kurosaki (黒崎), included a part of the Rikuchu Kaigan National Park, which is now part of the Sanriku Fukkō National Park. It features an observation point to view scenic 100-metre (330 ft) seaside cliffs.

Iwate Prefecture

• Iwaizumi
• Noda
• Tanohata

Fudai has a cold humid climate (Köppen climate classification Cfa) characterized by mild summers and cold winters. The average annual temperature in Fudai is 10.1 °C. The average annual rainfall is 1201 mm with September as the wettest month and February as the driest month. The temperatures are highest on average in August, at around 22.6 °C, and lowest in January, at around -1.1 °C.

Per Japanese census data, the population of Fudai has declined over the past 60 years.

Fudai has been recognized by Japan's Office for the Promotion of Regional Revitalization (Kishida Cabinet Secretariat), which promotes the development of new technologies to combat depopulation, for meeting a "high standard" of digital transformation/telework infrastructure. Related projects have been awarded over ¥4.8M in government grants.

Historical population

Year	Pop.	±%
1920	2,463	—
1930	2,940	+19.4%
1940	3,201	+8.9%
1950	3,903	+21.9%
1960	4,603	+17.9%
1970	4,162	−9.6%
1980	4,023	−3.3%
1990	3,909	−2.8%
2000	3,583	−8.3%
2010	3,088	−13.8%
2020	2,487	−19.5%

The area of present-day Fudai was part of ancient Mutsu Province, dominated by the Nambu clan during the Edo period, who ruled Hachinohe Domain under the Tokugawa shogunate. With the Meiji period establishment of the modern municipalities system, the village of Fudai was created within Kitahei District on April 1, 1889. Kitahei, Nakahei and Higashihei Districts were all merged into Minamihei District on March 29, 1896.

In 1953, the national and prefectural governments targeted Fudai for consolidation with its southern neighbor, Tanohata following the Law for the Consolidation of Cities, Towns and Villages ("the great Shōwa mergers"). Merger talks continued intermittently between 1955 and 1960. The Tanohata delegation was not in favor of the merger, but because of the pressure from the prefecture to implement the government directive, they felt they were not at liberty to directly reject the proposal. At a party in May 1960 to celebrate the end of the long merger negotiations, the mayor of Tanohata drunkenly insulted the delegates from Fudai in a final effort to scuttle the negotiations. The party was abandoned, and no further serious attempts were made to continue with the merger.

The village was spared from the devastation brought to other coastal communities following the 2011 Tōhoku earthquake and tsunami thanks to a 15.5-metre (51 ft) floodgate that protected the town. The floodgate was built between 1972 and 1984 at a cost of ¥3.56 billion (approximately US$30 million in 2011) under the administration of Kotaku Wamura, the village mayor from 1947 to 1987. Initially derided as a waste of public funds, the floodgate protected the village and the inner cove from the worst of the tsunami waves. After the 2011 tsunami, the villagers gave thanks at Wamura's grave. The village's only casualty was one missing person who went to inspect his boat in the fishing port, located outside of the wall's protection, immediately after the earthquake.

Fudai has a mayor-council form of government with a directly elected mayor and a unicameral village council of 14 members. Fudai, together with the city of Miyako, town of Iwaizumi and the villages of Tanohata and Yamada, collectively contributes three seats to the Iwate Prefectural legislature. In terms of national politics, the village is part of Iwate 2nd district of the lower house of the Diet of Japan.

The local economy is based on commercial fishing and agriculture.

Fudai has one public elementary school and one public junior high school operated by the village government. The village does not have a high school.

Sanriku Railway – Rias Line

• Fudai - Shiraikaigan - Horinai

• Sanriku-kita Jūkan Road
• National Route 45

• Rikuchū-Kurosaki Light – one of the "50 Noteworthy Lighthouses of Japan"

• Media related to Fudai, Iwate at Wikimedia Commons
• Official Website (in Japanese)