San Jose,[A] officially San José (/ˌsæn hoʊˈzeɪ, -ˈseɪ/; Spanish: [saŋ xoˈse]; Spanish for 'Saint Joseph'),[B] is a major city in the U.S. state of California that is the cultural, financial, and political center of Silicon Valley and largest city in Northern California by both population and area. With a 2020 population of 1,013,240, it is the most populous city in both the Bay Area and the San Jose-San Francisco-Oakland Combined Statistical Area, which contain 7.7 million and 9.7 million people respectively, the third-most populous city in California (after Los Angeles and San Diego and ahead of San Francisco), and the tenth-most populous in the United States. Located in the center of the Santa Clara Valley on the southern shore of San Francisco Bay, San Jose covers an area of 179.97 sq mi (466.1 km2). San Jose is the county seat of Santa Clara County and the main component of the San Jose–Sunnyvale–Santa Clara Metropolitan Statistical Area, with an estimated population of around two million residents in 2018.
Changtai County (ancient Changtai County, Zhangzhou Capital) Zhangzhou County, Fujian Province, is located in the central junction of the Golden Triangle in southern Fujian, the lower reaches of the Jiulong River Estuary. Between 24 °33 degrees north latitude 24 °54 miles north, 117 °36 degrees east longitude 117 °57'. It connects Xiamen to the east, Zhangzhou Taiwan Investment Zone to the south, Hua'an and Zhangzhou to the west, and Anxi County, Quanzhou to the north. Provincial Highway 212 is connected with National Highway 324, National Highway 319 and Fuzhao Expressway. The Eagle-Xiamen Railway connects Changtai Railway Station with the national railway network. Longjin River Channel from Wu'an to Guokeng, Shima. The unique geomorphological structure of Changtai County can block the cold current in winter and typhoon in summer. Changtai County is a typical suburban county, a pilot county for comprehensive development of mountainous areas in China, a demonstration county for ecological construction in China and advanced environmental protection in Fujian Province.