• Tucson
  • Jindong District

Tucson (/ˈtuːsɒn, tuːˈsɒn/; Spanish: Tucson, O'odham: Cuk-Ṣon) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona. It is the second largest city in Arizona behind Phoenix, with a population of 542,629 in the 2020 United States census, while the population of the entire Tucson metropolitan statistical area (MSA) is 1,043,433. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA). Both Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.–Mexico border. Tucson is the 34th largest city and the 53rd largest metropolitan area in the United States (2014).

Major incorporated suburbs of Tucson include Oro Valley and Marana northwest of the city, Sahuarita south of the city, and South Tucson in an enclave south of downtown. Communities in the vicinity of Tucson (some within or overlapping the city limits) include Casas Adobes, Catalina Foothills, Flowing Wells, Midvale Park, Tanque Verde, Tortolita, and Vail. Towns outside the Tucson metro area include Benson to the southeast, Catalina and Oracle to the north, and Green Valley to the south.

Tucson was founded as a military fort by the Spanish when Hugo O'Conor authorized the construction of Presidio San Agustín del Tucsón in 1775. It was included in the state of Sonora after Mexico gained independence from the Spanish Empire in 1821. In 1853, the United States acquired a 29,670 square miles (76,840 km2) region of present-day southern Arizona and southwestern New Mexico from Mexico under the Gadsden Purchase. Tucson served as the capital of the Arizona Territory from 1867 to 1877. Tucson was Arizona's largest city by population during the territorial period and early statehood, until it was surpassed by Phoenix by 1920. Nevertheless, population growth remained strong during the late 20th century. In 2017, Tucson was the first American city to be designated a "City of Gastronomy" by UNESCO.

Jindong District, established in February 2001, now has jurisdiction over eight towns, one township and two streets, with a total area of 658.19 square kilometers and a population of 361500. It is located in Jinqu Basin in central Zhejiang, between Jinhua and Yiwu, west of Jinhua City, east of Yiwu, south of Yongkang and Wuyi, and north of Lanxi. It is not only the core area of the urban agglomeration of central Zhejiang and Jinyi City, but also an important node of Jinyi Golden Spindle. The transportation network of Jindong is well developed, with the double track of Zhejiang-Jiangxi Railway, Jinwen Railway, National Highway 330 and Provincial Highway 03 running through the whole territory. Hangzhou-Jinzhou-Quzhou Expressway, Jinliwen Expressway and Yong-Jin Expressway all have interchange ports in the area, and high-grade highways in the region account for more than 40%. The level is on a par with that of developed countries.
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