Ouhai district is the jurisdiction of Wenzhou, Zhejiang Province, and one of the four main urban areas of Wenzhou. Ouhai belonged to Ou Di in ancient times, with a land area of 466.46 square kilometers, accounting for 40.2% of Wenzhou urban land area and 4.0% of the city's land area.
198 1 jianxian county,1withdrew from the county in March 1992. Jurisdiction 12 street, 1 town, 1 provincial development zone. 25 1 administrative village, 85 communities, with a total registered population of 4732 19 (202 1).
Ouhai district has successively won the honorary titles of China Advanced Science and Technology Work Zone, Provincial Education Zone, Provincial Civilized City Zone, Provincial Safe Zone, Provincial Science and Technology Zone, Provincial Community Health Service Zone, Provincial Double Support Model City, Provincial Rural Grassroots Organization "Pioneer Project" Construction Zone, and Provincial Sports Zone.
Ouhai district is located in the southwest of Wenzhou, bordering Lucheng District in the north, Longwan District in the east, Ruian City in the south and qingtian county (Lishui City) in the west. Ouhai district is high in the west and low in the east. Land accounts for 93.33% and water accounts for 6.67%. The forestry land area is 376,000 mu, and the cultivated land area is 6,543,800 mu.
There are two major water systems in Ouhai, Wenruitang River and Huichang Lake, with 52 large and small rivers 152, main channel 17.27 km, main tributaries 36.09 km and general tributaries 345. 14 km. River bed width 15 ~ 100 m, water depth 1.5 m.