Sakai (坂井市, Sakai-shi; Japanese pronunciation: [saꜜ.kai, sa.kaꜜi.ɕi]) is a city located in Fukui Prefecture, Japan. As of 1 February 2026, the city had an estimated population of 87,744 in 34,042 households and a population density of 418 persons per km2. The total area of the city was 209.67 square kilometres (80.95 sq mi).
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Geography
Sakai is located in far northern Fukui Prefecture, bordered by the city of Awara and Ishikawa Prefecture to the north and the Sea of Japan to the northeast, The city of Fukui borders the city to the south. The Kuzuryū River flows through the city to the Sea of Japan. Most the urban area lies within the Kuzuryu River basin. North of the river's mouth in the former Mikuni Town, there are many rocky areas, including the cliffs of Tōjinbō. To the east is the Kaetsu Plateau, and south of the river's mouth is the sandy beach of Sanrihama. While there are mountainous areas with an elevation of approximately 1,000 meters in the eastern part of the former Maruoka Town.
Neighbouring municipalities
Fukui Prefecture
Awara
Eiheiji
Fukui
Katsuyama
Ishikawa Prefecture
Kaga
Climate
Sakai has a Humid climate per the Köppen climate classification system, characterized by warm, wet summers and cold winters with heavy snowfall. The average annual temperature in Sakai is 14.3 °C. The average annual rainfall is 2476 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.9 °C, and lowest in January, at around 2.8 °C.
Demographics
Per Japanese census data, the population of Sakai has recently plateaued after a long period of growth. Sakai is the second most populous city in Fukui Prefecture. The Harue and Maruoka neighborhoods in the southern part of the city function as commuter towns for the city of Fukui.
History
Sakai is part of the ancient Echizen Province. The semi-legendary Kofun period Emperor Keitai is said to have come from the area that is now the Maruoka neighbourhood of Sakai. During the Edo period, the area was divided between the holdings of the Maruoka Domain, Fukui Domain and tenryō holdings directly under control of the Tokugawa shogunate. Following the Meiji restoration, the area was organised into part of Sakai District in Fukui Prefecture. The epicentre of the 1948 Fukui earthquake was in Maruoka. The towns of Mikuni and Maruoka were created with the establishment of the modern municipalities system on April 1, 1889. The village of Harue was raised to town status on April 3, 1942. The village of Sakai was created on March 1, 1955, by the merger of the villages of Higashi-Jūgō, Hyōgo and Ōseki. It was raised to town status on April 1, 1961. The modern city of Sakai was established on March 20, 2006, from the merger of the former town of Sakai with the towns of Harue, Maruoka and Mikuni. Sakai District was dissolved as a result of this merger.
Government
Sakai has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 26 members. Sakai contributes four members to the Fukui Prefectural Assembly. In terms of national politics, the city is part of the Fukui 1st district of the lower house of the Diet of Japan.
Economy
Sakai is a regional commercial center with a mixed economy. Agriculture is centered on Koshihikari rice production and "Wakasa" brand wagyu beef. Industry is centered n the Fukui Coastal Industrial Zone (Technoport Fukui) and includes steel production, pharmaceuticals and chemicals.
Education
Sakai has 19 public elementary schools and five middle schools operated by the city government, and three public high school operated by the Fukui Prefectural Board of Education. The prefecture also operates one special education school.
High schools
Maruoka Senior High School
Mikuni Senior High School
Sakai Senior High School
Transportation
Airport
Fukui Airport (No scheduled flight services.)
Railway
As of 16 March 2024, JR West no longer operates in Sakai as its operations on the Hokuriku Main Line were transferred to third-sector company Hapi-line Fukui.
Hapi-line Fukui
Harue - Maruoka
Echizen Railway Mikuni Awara Line
Taromaru Angelland - Nishiharue Heartpia - Nishinagata Yurinosato - Shimohyogo Kofuku - Ōzeki - (Awara-shi) - Mizui - Mikuni-Jinja - Mikuni - Mikuni-Minato
Highway
Hokuriku Expressway
National Route 8
National Route 305
National Route 364
Local attractions
Echizen-Kaga Kaigan Quasi-National Park
Maruoka Castle, one of the 100 Famous Castles of Japan
Maruoka Domain Battery, National Historic Site
Mikuni Onsen
Rokuroseyama Kofun Cluster, National Historic Site
Technoport Fukui Stadium
Tōjinbō, National Site of Scenic Beautyand Natural Monument
Takidan-ji gardens, National Site of Scenic Beauty
Notable people
Chosei Komatsu (from Mikuni) – artistic director of the National Symphony Orchestra of Costa Rica
Kazuhiko Masada (from Mikuni) - Japanese professional wrestler and member of Tokyo Gurentai
Shigeharu Nakano (from Maruoka) - author and Communist Party politician
Ai Takahashi (from Harue) – former leader of Japanese idol group Morning Musume




