Yunlin County is a county in western Taiwan. Yunlin County borders the Taiwan Strait to the west, Nantou County to the east, Changhua County to the north at the Zhuoshui River, and Chiayi County to the south at the Beigang River. It has a population of 664,963 as of 2022. Yunlin is part of the Chianan Plain, a flat land known for its agriculture. Agricultural products of Yunlin County include pomelo, tea leaves, suan cai, papaya and melon.