Bakersfield is a city in Kern County, California, United States. It is the county seat and largest city of Kern County. The city covers about 151 sq mi (390 km2) near the southern end of the San Joaquin Valley and the Central Valley region. Bakersfield's population as of the 2020 census was 403,455, making it the 48th-most populous city in the United States of America and the 9th-most populous city in California. The Bakersfield–Delano Metropolitan Statistical Area, which includes all of Kern County, had a 2020 census population of 909,235, making it the 62nd-largest metropolitan area in the United States. The more built-up portion of the metro area that includes Bakersfield and areas immediately around the city, such as East Bakersfield, Oildale, and Rosedale, has a population of 523,994.
Bakersfield is a significant hub for both agriculture and energy production. Kern County is the most productive oil-producing county in California and the fourth-most productive agricultural county (by value) in the United States. Industries in and around Bakersfield include natural gas and other energy extraction, mining, petroleum refining, distribution, food processing, and corporate regional offices. The city is the birthplace of the country music genre known as the Bakersfield sound.
Tongren City, a prefecture-level city under the jurisdiction of Guizhou Province, is located in the northeast of Guizhou Province, in the hinterland of Wuling Mountain area, in the east of Huaihua City, Hunan Province, and bordering Chongqing in the north, high in the northwest and low in the southeast, the whole territory is mainly mountainous, most areas belong to the mid-subtropical monsoon humid climate zone; the total area is 18003 square kilometers, and it has jurisdiction over 2 municipal districts, 4 counties and 4 autonomous counties; the resident population is 3.1688 million in 2018. The history has a long history. The Qin Dynasty was the hinterland of the central Guizhou county, and it was transferred to Wuling County in the Han Dynasty, and the county was ruled only in the Shu Han Dynasty; the Tang Dynasty belonged to Sizhou, Jinzhou and Qianzhou respectively. At the end of the Song Dynasty and the beginning of the Yuan Dynasty, Sizhou and Sinan were set up to proclaim comfort, and the Yuan Dynasty set up a lawsuit against the army and people of the Copper people's Congress and the people of Xiaojiang. Ming Yongle withdrew Sizhou and Sinan Xuanwei Department in the eleventh year of the Ming Dynasty, and set up four prefectures of Tongren, Sinan, Shiqian and Wuluo at present, which belong to the newly-built