Izumisano (泉佐野市, Izumisano-shi) is a city located in Osaka Prefecture, Japan. As of 30 November 2021, the city had an estimated population of 98,840. Izumisano is located approximately halfway between Osaka City and Wakayama City, bordered by Osaka Bay to the northwest and the Izumi Mountains and Kongō-Ikoma-Kisen Quasi-National Park to the south. The northern third of Kansai International Airport is located within the city limits on an artificial island offshore, and the area within Izumisano includes the connecting bridge to the mainland. The primary industries of Izumisano remain food-related: agriculture, commercial fishing and food processing. The main crops are onions, eggplants, cabbage, and broccoli. Textile production is also essential, with the city accounting for 47% of domestic towel production. Due to the proximity of Kansai International Airport, airport-support and aviation-related industries have increased. Peach Aviation has its head office in Izumisano. The city is also home to the 256-metre Rinku Gate Tower Building, the third tallest building in Japan.