Chiayi, officially known as Chiayi City, is a city located in Chianan Plain in southwestern Taiwan, surrounded by Chiayi County with a populatio…Chiayi, officially known as Chiayi City, is a city located in Chianan Plain in southwestern Taiwan, surrounded by Chiayi County with a population of 263,188 inhabitants as of January 2023. The Hoanya people inhabited present-day Chiayi under its historical name of Tirosen prior to the arrival of Han Chinese in Taiwan and was ruled by the Dutch and the Kingdom of Tungning under various names. During the Qing dynasty, Tirosen was governed as part of Taiwan Prefecture in Fujian under Zhuluo County and the city was renamed Kagee in 1787. The city was renamed Kagi during the Japanese era but an earthquake in 1906 destroyed much of the town. Kagi was administered as part of Tainan Prefecture from 1920 onwards. Following the surrender of Japan in 1945, the Republic of China, who deposed the Qing in 1911, took control of the city and administered it as a provincial city of Taiwan Province before being integrated into Chiayi County in 1950 as a county-administered city. The city was restored to its status as a provincial city in 1982. In 1998, Taiwan Province was streamlined and Chiayi City has been governed directly since then by the Executive Yuan.