city, Ōsaka fu (urban prefecture), Honshu, Japan. The city faces Ōsaka Bay. An important transportation centre during the Heian period (794–1185), the city became a market for cotton, agricultural produce, and fish. Industry has been expanding on reclaimed coastal land, manufacturing textiles (especially towels) and machinery. Izumi-Sano is also a trade centre for onions destined for Ōsaka and Kōbe. Pop. (2005) 98,889.