Gangu County, belonging to Tianshui City, Gansu Province, is located in the southeast of Gansu Province, northwest of Tianshui City and upstream of the Wei River. Gangu County has a temperate continental monsoon climate, with a total area of 1,572.6 square kilometers. As of the end of 2021, the resident population of Gangu County was 501,800. Gangu County, known as "Ji" in ancient times, is an important birthplace of the Qin people, and is the first place of county government in China, which was set up in 688 B.C., with a history of more than 2,700 years, and is known as "the first county in China" In 1958, Gangu and Zhang County were abolished and incorporated into Wushan County. In 1962, the former Gangu County was restored. As of October 2022, Gangu County has 13 towns and 2 townships under its jurisdiction. Gangu County has many cultural relics and monuments, and has been awarded the titles of "National Hometown of Chili Peppers", "Hometown of Chinese Apples", "Hometown of Chinese Peppers" and "National Hometown of Martial Arts". The county has been honored with the titles of "National Hometown of Chili Peppers", "Hometown of Chinese Apples", "Hometown of Chinese Peppers" and "National Hometown of Martial Arts". In 2020, Gangu County will realize a GDP of 7.931 billion yuan, with an average annual growth rate of 5.94%.