Taichung City, commonly known as Taichung, is a municipality directly under the Central Government of the Republic of China, one of the six capitals of Taiwan, and the only municipality in Central Taiwan. It is adjacent to six counties in Taiwan Province, with Miaoli County and Hsinchu County in the north, Changhua County and Nantou County in the south, Hualien County in the east by the Central Mountain Range, and Yilan County in the northeast by the Central Mountain Range and Snow Mountain Range and in the west. Taiwan Straits. Taichung City covers an area of 2,215 square kilometers and has a registered population of approximately 2.82 million. It is the second most populous city in Taiwan and the core city of the "Taichung Metropolitan Area", the second largest metropolitan area in Taiwan. It is often referred to as Changhua County and Nantou County. "China Changtou Area".